阅读说明：本技术 拍摄控制方法、装置、云台、跟焦器电机及存储介质 (Shooting control method and device, holder, focus follower motor and storage medium ) 是由 黄常建 殷汇鹏 于 2020-09-22 设计创作，主要内容包括：一种拍摄控制方法、装置、云台(100)、跟焦器电机(500)及存储介质,其中所述方法包括：根据距离传感器(300)采集到的传感数据获取拍摄设备(200)与拍摄目标之间的实时距离(S101)；根据所述实时距离控制与所述拍摄设备(200)的镜头啮合的跟焦器电机(500)来驱动所述镜头变焦,以使所述拍摄目标在所述拍摄设备(200)的拍摄画面中的尺寸维持在目标尺寸(S102)。所述方法便于用户简易操控拍摄设备实现滑动变焦。(A shooting control method, a shooting control apparatus, a pan/tilt head (100), a focus follower motor (500), and a storage medium, wherein the method comprises: acquiring a real-time distance between the photographing device (200) and a photographing target according to sensing data acquired by the distance sensor (300) (S101); controlling a focus follower motor (500) engaged with a lens of the photographing apparatus (200) according to the real-time distance to drive the lens zooming to maintain a size of the photographing target in a photographing screen of the photographing apparatus (200) at a target size (S102). The method is convenient for a user to simply control the shooting equipment to realize sliding zooming.)

1. A shooting control method, characterized by comprising:

acquiring a real-time distance between the shooting equipment and a shooting target according to sensing data acquired by the distance sensor;

and controlling a focus follower motor engaged with a lens of the shooting device according to the real-time distance to drive the lens to zoom so as to maintain the size of the shooting target in a shooting picture of the shooting device at a target size.

2. The method of claim 1, further comprising:

when the shooting equipment is a first distance away from the shooting target, determining a first measurement distance between the shooting equipment and the shooting target according to sensing data collected by the distance sensor, and acquiring a first measurement rotating position of a motor of the focus follower;

when the shooting equipment is a second distance away from the shooting target, determining a second measurement distance between the shooting equipment and the shooting target according to sensing data collected by the distance sensor, and acquiring a second measurement rotating position of a motor of the focus follower;

when the shooting device is away from the shooting target by the first distance and the second distance, the size of the shooting target in a shooting picture of the shooting device is the target size;

the controlling a focus follower motor engaged with a lens of the photographing apparatus according to the real-time distance to drive the lens to zoom includes:

driving the lens to zoom according to the first measured distance, the first measured rotational position, the second measured distance, the second measured rotational position, and the real-time distance.

3. The method of claim 2, wherein said driving the lens zoom in accordance with the first measured distance, the first measured rotational position, the second measured distance, the second measured rotational position, and the real-time distance comprises:

determining the corresponding relation between the rotating position of the focus follower motor and the distance between the shooting equipment and the shooting target when the size of the shooting target in the shooting picture is the target size according to the first measuring distance, the first measuring rotating position, the second measuring distance and the second measuring rotating position;

and controlling the focus follower motor to drive the lens to zoom according to the real-time distance and the corresponding relation.

4. The method of claim 2, further comprising:

when the shooting device is a first distance away from the shooting target, acquiring a first size selection instruction of a user, and controlling the focus follower motor to drive the lens to zoom according to the first size selection instruction so as to adjust the size of the shooting target in a shooting picture of the shooting device to the target size; and/or the presence of a gas in the gas,

when the shooting device is a second distance away from the shooting target, a second size selection instruction of a user is obtained, and the focus follower motor is controlled to drive the lens to zoom according to the second size selection instruction so as to adjust the size of the shooting target in a shooting picture of the shooting device to the target size.

5. The method according to claim 4, characterized in that the photographing apparatus is detachably carried on a carrying seat of a pan/tilt head, the focus follower motor is detachably carried on a carrying seat of a pan/tilt head, a hand-held portion of the pan/tilt head is provided with a focusing wheel, wherein,

the obtaining a first size selection instruction of the user comprises:

detecting a first rotation operation of the focusing wheel by the user, and determining a first size selection instruction according to the detected first rotation operation; and/or the presence of a gas in the gas,

the obtaining of the second size selection instruction of the user comprises:

and detecting a second rotation operation of the focusing wheel by the user, and determining a second size selection instruction according to the detected first rotation operation.

6. The method of claim 1, wherein the distance sensor comprises a transmitting device for transmitting a ranging signal and a receiving device for receiving the ranging signal transmitted by the shooting target, and the obtaining of the real-time distance between the shooting device and the shooting target according to the sensing data collected by the distance sensor comprises:

and determining the real-time distance between the shooting target and the shooting equipment according to the reflection signal received by the receiving device.

7. The method of claim 1, wherein the capture device is removably carried on a cradle of a pan/tilt head and the focus follower motor is removably carried on a cradle of a pan/tilt head.

8. The method of claim 1, wherein the target size is set by a user.

9. The method of claim 1, wherein the photographic target is selected by a user.

10. The method according to claim 9, wherein the photographing apparatus is detachably carried on a carrying seat of a cradle head, the cradle head is in communication with the photographing apparatus, a display screen is provided on a handheld portion of the cradle head, and the photographing target is determined by detecting a user's selection operation of the display screen displaying the photographed image of the photographing apparatus.

11. The method of claim 1, wherein the distance sensor is removably disposed on the capture device.

12. The method according to claim 1, characterized in that the shooting device is removably carried on a carrying seat of a head, the distance sensor being removably carried on a carrying seat of a head.

13. A shooting control apparatus characterized by comprising a memory and a processor;

the memory for storing a computer program;

the processor is configured to execute the computer program and, when executing the computer program, implement the following steps:

acquiring a real-time distance between the shooting equipment and a shooting target according to sensing data acquired by the distance sensor;

and controlling a focus follower motor engaged with a lens of the shooting device according to the real-time distance to drive the lens to zoom so as to maintain the size of the shooting target in a shooting picture of the shooting device at a target size.

14. The capture control device of claim 13, wherein the processor is further configured to implement the steps of:

when the shooting equipment is a first distance away from the shooting target, determining a first measurement distance between the shooting equipment and the shooting target according to sensing data collected by the distance sensor, and acquiring a first measurement rotating position of a motor of the focus follower;

when the shooting equipment is a second distance away from the shooting target, determining a second measurement distance between the shooting equipment and the shooting target according to sensing data collected by the distance sensor, and acquiring a second measurement rotating position of a motor of the focus follower;

when the shooting device is away from the shooting target by the first distance and the second distance, the size of the shooting target in a shooting picture of the shooting device is the target size;

the processor is specifically configured to, when driving the lens to zoom by controlling a focus follower motor engaged with the lens of the shooting device according to the real-time distance:

driving the lens to zoom according to the first measured distance, the first measured rotational position, the second measured distance, the second measured rotational position, and the real-time distance.

15. The photographing control apparatus according to claim 14, wherein the processor is configured to, when driving the lens to zoom according to the first measured distance, the first measured rotational position, the second measured distance, the second measured rotational position, and the real-time distance, in particular:

determining the corresponding relation between the rotating position of the focus follower motor and the distance between the shooting equipment and the shooting target when the size of the shooting target in the shooting picture is the target size according to the first measuring distance, the first measuring rotating position, the second measuring distance and the second measuring rotating position;

and controlling the focus follower motor to drive the lens to zoom according to the real-time distance and the corresponding relation.

16. The capture control device of claim 14, wherein the processor is further configured to implement the steps of:

when the shooting device is a first distance away from the shooting target, acquiring a first size selection instruction of a user, and controlling the focus follower motor to drive the lens to zoom according to the first size selection instruction so as to adjust the size of the shooting target in a shooting picture of the shooting device to the target size; and/or the presence of a gas in the gas,

when the shooting device is a second distance away from the shooting target, a second size selection instruction of a user is obtained, and the focus follower motor is controlled to drive the lens to zoom according to the second size selection instruction so as to adjust the size of the shooting target in a shooting picture of the shooting device to the target size.

17. The shooting control apparatus according to claim 16, wherein the shooting device is detachably carried on a carrying seat of a pan/tilt head, the focus follower motor is detachably carried on the carrying seat of the pan/tilt head, a hand-held portion of the pan/tilt head is provided with a focusing wheel, wherein,

when the processor obtains a first size selection instruction of a user, the processor is specifically configured to:

detecting a first rotation operation of the focusing wheel by the user, and determining a first size selection instruction according to the detected first rotation operation; and/or the presence of a gas in the gas,

when the processor obtains a second size selection instruction of the user, the processor is specifically configured to:

and detecting a second rotation operation of the focusing wheel by the user, and determining a second size selection instruction according to the detected first rotation operation.

18. The shooting control device of claim 13, wherein the distance sensor comprises a transmitter for transmitting a ranging signal and a receiver for receiving the ranging signal transmitted by the shooting target, and the processor is specifically configured to, when acquiring the real-time distance between the shooting device and the shooting target according to the sensing data acquired by the distance sensor:

and determining the real-time distance between the shooting target and the shooting equipment according to the reflection signal received by the receiving device.

19. The shooting control apparatus according to claim 13, wherein the shooting device is detachably carried on a carrying seat of the pan/tilt head, and the focus follower motor is detachably carried on the carrying seat of the pan/tilt head.

20. The shooting control apparatus according to claim 13, wherein the target size is set by a user.

21. The shooting control apparatus according to claim 13, characterized in that the shooting target is selected by a user.

22. The shooting control apparatus according to claim 21, wherein the shooting device is detachably carried on a carrying seat of a cradle head, the cradle head is in communication with the shooting device, a display screen is provided on a handheld portion of the cradle head, and the shooting target is determined by detecting a user's selection operation of the display screen displaying the shot image of the shooting device.

23. The shooting control apparatus according to claim 13, characterized in that the distance sensor is detachably provided on the shooting device.

24. The shooting control apparatus according to claim 13, wherein the shooting device is detachably carried on a carrying seat of the pan/tilt head, and the distance sensor is detachably carried on the carrying seat of the pan/tilt head.

25. A head, characterized in that it comprises a carriage on which a shooting device is removably carried, and a shooting control apparatus according to any one of claims 13 to 24.

26. A focus tracker motor, characterized in that it comprises a photographing control apparatus according to any one of claims 13 to 24.

27. A storage medium characterized by storing a photographing control program, which when executed by a processor causes the processor to implement the steps of the photographing control method according to any one of claims 1 to 12.

Technical Field

The application relates to the technical field of control, in particular to a shooting control method and device, a cloud platform, a focus follower motor and a storage medium.

Background

At present, the sliding zooming of the shooting equipment, namely the Hirschhorn zooming, can be realized through the pan-tilt, specifically, the position and the focal length of the shooting equipment are synchronously changed during shooting, so that the shooting main body is kept unchanged in a picture, and the background is zoomed, thereby generating stronger visual impact effect. However, the implementation manner of the xitake kock zoom is mainly that the user manually moves the shooting device, and at the same time, manually adjusts the focal length of the shooting device or the focal length changes according to a fixed rate, and at the same time, manually adjusts the movement speed of the shooting device according to the fixed rate, so that the operation process is complicated, the shooting requirement is high, the user is inconvenient to simply shoot the video with the xitake kock effect, and the user experience is not good.

Disclosure of Invention

Based on this, the embodiment of the application provides a shooting control method, a shooting control device, a pan-tilt, a focus follower motor and a storage medium, and aims to provide a method for facilitating a user to simply realize sliding zooming of shooting equipment.

In a first aspect, an embodiment of the present application provides a shooting control method, where the method includes:

acquiring a real-time distance between the shooting equipment and a shooting target according to sensing data acquired by the distance sensor;

and controlling a focus follower motor engaged with a lens of the shooting device according to the real-time distance to drive the lens to zoom so as to maintain the size of the shooting target in a shooting picture of the shooting device at a target size.

In a second aspect, an embodiment of the present application further provides a shooting control apparatus, which includes a memory and a processor;

the memory for storing a computer program;

the processor is configured to execute the computer program and realize the steps of the photographing control method according to any one of the descriptions of the present application when the computer program is executed.

In a third aspect, an embodiment of the present application further provides a cradle head, where the cradle head includes a bearing seat and the shooting control apparatus described in any one of the present specification, and the shooting device is detachably carried on the bearing seat.

In a fourth aspect, an embodiment of the present application further provides a focus follower motor, where the focus follower motor includes any one of the shooting control devices in the present application specification.

In a fifth aspect, the present application further provides a storage medium storing a computer program, where the computer program, when executed by a processor, causes the processor to implement the steps of the shooting control method according to any one of the descriptions provided in the present application.

The embodiment of the application provides a shooting control method and device, a holder, a focus follower motor and a storage medium, and the application acquires a real-time distance between shooting equipment and a shooting target by utilizing sensing data acquired by a distance sensor; and controlling a focus follower motor meshed with the lens of the shooting device according to the real-time distance to drive the lens to zoom so as to maintain the size of the shot target in a shot picture of the shooting device at a target size, so that a user can simply control the shooting device to realize sliding zooming, and the user experience is greatly improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic block diagram of a structure of a shooting system provided in an embodiment of the present application;

fig. 2 is a schematic perspective view of a pan-tilt head of the shooting system provided in the embodiment of the present application;

fig. 3 is a schematic perspective view of a camera of the shooting system according to an embodiment of the present disclosure;

fig. 4 is a flowchart illustrating steps of a photographing control method according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a lens barrel provided in the embodiment of the present application for zooming;

FIG. 6 is a schematic structural diagram of the correspondence between the object distance and the focal length when the lens barrel realizes sliding zooming;

fig. 7 is a block diagram schematically illustrating a structure of a photographing control apparatus according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the descriptions in this application referring to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

The flow diagrams depicted in the figures are merely illustrative and do not necessarily include all of the elements and operations/steps, nor do they necessarily have to be performed in the order depicted. For example, some operations/steps may be decomposed, combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

At present, the sliding zooming of the shooting equipment, namely the Hirschhorn zooming, can be realized through the pan-tilt, specifically, the position and the focal length of the shooting equipment are synchronously changed during shooting, so that the shooting main body is kept unchanged in a picture, and the background is zoomed, thereby generating stronger visual impact effect. However, the implementation manner of the xitake kock zoom is mainly that the user manually moves the shooting device, and at the same time, manually adjusts the focal length of the shooting device or the focal length changes according to a fixed rate, and at the same time, manually adjusts the movement speed of the shooting device according to the fixed rate, so that the operation process is complicated, the shooting requirement is high, the user is inconvenient to simply shoot the video with the xitake kock effect, and the user experience is not good.

In order to solve the above problems, embodiments of the present application provide a shooting control method, an apparatus, a pan-tilt, a focus follower motor, and a storage medium, where the shooting control method obtains a real-time distance between a shooting device and a shooting target according to sensing data acquired by a distance sensor; and controlling a focus follower motor engaged with a lens of the shooting device according to the real-time distance to drive the lens to zoom so as to maintain the size of the shooting target in a shooting picture of the shooting device at a target size. The user simply controls the shooting equipment to realize sliding zooming, and user experience is greatly improved.

Referring to fig. 1, fig. 1 is a schematic block diagram of a structure of a shooting system according to an embodiment of the present disclosure.

The photographing system 10 includes a pan/tilt head 100, a photographing apparatus 200 mounted on the pan/tilt head 100 and communicatively connected to the pan/tilt head 100, a distance sensor 300 fixed relative to the photographing apparatus 200, a focus follower motor 500 mounted on the pan/tilt head 100 for driving the photographing apparatus 200 to zoom, and a control device 400 for driving the focus follower motor 500 to control the zooming of the photographing apparatus 200 according to sensing data of the distance sensor 300.

The distance sensor 300 may be mounted on the pan/tilt head 100 or on the shooting device 200, the shooting device is a single-lens reflex camera, a non-lens reflex camera or a micro-lens reflex camera, and the distance sensor 300 may be an optical signal distance sensor or an ultrasonic distance sensor, for example, the distance sensor 300 is a tof (time of flight) sensor.

The control device 400 may be disposed independently, or may be disposed in the pan/tilt head 100, the shooting device 200, or the focus follower motor 500, which is not limited herein.

Referring to fig. 2, the pan/tilt head 100 includes a handle portion 101 and a pan base portion 102 provided on the handle portion 101. The pan/tilt head 102 is used for providing a load for an external device.

Specifically, the pan/tilt head 102 includes a bearing base 1024 and a three-axis motor detachably connected to the bearing base 1024. The cloud deck section 102 provides a bearing by a bearing base 1024, and the photographing apparatus 200 is detachably borne on the bearing base 1024. It is understood that the photographing apparatus 200 may be provided integrally with the pan and tilt head section 102. The triaxial motor includes a pitch (pitch) axis motor 1021, a roll (roll) axis motor 1022, and a yaw (yaw) axis motor 1023, and is used to adjust the balance posture of the photographing apparatus 200 mounted on the platform part 102 so as to photograph a stable screen with high accuracy at any time and place.

An Inertial Measurement Unit (IMU), which may be at least one of an accelerometer or a gyroscope, may be further disposed on the platform portion 102, and may be used to measure the attitude, the acceleration, and the like of the platform portion 102, so as to adjust the attitude of the platform portion 102 according to the attitude. In an embodiment, the handle portion 101 is also provided with an Inertial Measurement Unit (IMU), for example, including at least one of an accelerometer or a gyroscope, which may be used to measure the attitude and acceleration of the handle portion 101, etc., so as to adjust the attitude of the platform portion 102 according to the attitude of the handle portion 101 and the attitude of the platform portion 102.

A focus wheel 103 is provided on the handle section 101, and the focus wheel 103 is used to adjust shooting parameters of the shooting apparatus 200 mounted on the pan/tilt head 102. Alternatively, the pan/tilt head 100 is electrically connected to a focus follower motor 500 matched with the focus wheel 103, and the focus wheel 103 is used to control the focus follower motor 500 so as to adjust the shooting parameters of the shooting device 200 mounted on the pan/tilt head 102 through the focus follower motor 500.

The display screen is further disposed on the handle portion 101, the live view frame acquired by the shooting device 200 can be transmitted to the display screen on the handle portion 101 for display, and the user can manipulate the display screen on the handle portion 101 to select or determine a target to be shot by the shooting device 200.

Referring to fig. 3, the photographing apparatus 200 is provided with a focus following ring 202 for adjusting a focal length of a lens 201. The focus follower motor 500 engages with the focus follower ring 202, and drives the focus follower ring 202 to rotate, thereby adjusting the focal length of the lens 201. The focus following motor 500 may be detachably mounted on the carrying seat 1024 of the cloud platform part 102, or the focus following motor 500 and the carrying seat 1024 of the cloud platform part 102 are integrally disposed.

When the user needs to use the photographing apparatus 200 for slide zoom photographing, the distance sensor may be detachably mounted on the photographing apparatus 200 or the pan/tilt head 100, so that the distance sensor and the photographing apparatus 200 are relatively fixed. When the distance sensor 300 is detachably mounted to the photographing apparatus 200, it may be mounted on the hot shoe 204 of the photographing apparatus 200. When the distance sensor 300 is detachably mounted to the head 100, it may be mounted on the carrying seat 1024 of the head 100. The real-time distance between the photographic subject and the photographing apparatus 200 is acquired by the distance sensor 300, and the focus follower motor 500 is controlled to drive the lens 201 to zoom according to the real-time distance, so that the size of the photographic subject in the photographing screen of the photographing apparatus 200 is adjusted to the target size.

Specifically, the size of the target size of the shot target in the shot picture of the shooting device 200 is set by a user, where the user obtains a live view picture of the shot target through the shooting device 200, makes the size of an area where the shot target is located in the live view picture be a preset target size by adjusting the lens 201, and issues an instruction to the shooting device 200 by controlling the shooting device 200 or the cradle head 100 in communication connection with the shooting device 200, so that the shooting device 200 determines the target size of the shot target according to the instruction.

Or, the user acquires a live view picture of the shooting target through the shooting device 200, makes the size of the area where the shooting target is located in the live view picture be a preset target size by adjusting the focusing wheel 103 arranged on the handle portion 101 of the pan/tilt head 100, and issues an instruction to the shooting device 200 by controlling the shooting device 200 or the pan/tilt head 100, so that the shooting device 200 determines the target size of the shooting target according to the instruction.

It is to be understood that the photographing systems, photographing apparatuses, and the holders in fig. 1, 2, and 3 and the above-mentioned names for the photographing apparatuses and the holder components are only for identification purposes, and do not limit the embodiments of the present application accordingly.

Referring to fig. 4, fig. 4 is a flowchart illustrating steps of a photographing control method according to an embodiment of the present application.

The shooting control method can be applied to a shooting control device, a pan-tilt or a focus follower motor, and in this embodiment, the shooting control method is applied to the pan-tilt as an example, but the shooting control method is not limited to be applied only to the pan-tilt.

As shown in fig. 4, the photographing control method includes steps S101 to S102.

S101: and acquiring the real-time distance between the shooting equipment and the shooting target according to the sensing data acquired by the distance sensor.

The shooting equipment bears in the cloud platform and demountable installation on the bearing seat of cloud platform, and shoots equipment and cloud platform communication connection, can send out to shooting equipment through the cloud platform and control the instruction to control shooting equipment to carry out corresponding operation, if, focusing or confirm to shoot the target.

The distance sensor is an optical signal distance sensor or an ultrasonic distance sensor, and the distance sensor and the shooting equipment are relatively fixed. This distance sensor demountable installation is on shooting equipment, can demountable installation on bearing the device that bears shooting equipment, if, shooting equipment's the device that bears is the cloud platform, then distance sensor demountable installation is on the cloud platform, specifically does, distance sensor demountable installation is used for bearing the seat that bears of shooting equipment in the cloud platform.

The sensing data of the distance sensor includes at least a time difference between the ranging signal reflection signals. And calculating the real-time distance between the shooting equipment and the shooting target according to the time difference between the ranging signal and the reflected signal and the propagation speed of the ranging signal in the propagation medium.

The shooting target is a target to be shot selected by a user in a live view picture acquired by the shooting device. The selection operation of the user on the shooting target may be determined by touching a corresponding button of the shooting device or a display device of the shooting device, or by manipulating a focusing wheel provided on the handle portion of the pan/tilt head, or by touching a display screen provided on the handle portion of the pan/tilt head, which is not limited herein.

Illustratively, the distance sensor is a TOF sensor, and the distance sensor is detachably disposed on a hot shoe of the photographing apparatus. The sensing data of the distance sensor comprises the propagation speed of the ranging signal in the propagation medium and the time difference between the ranging signal and the transmitting signal. The method comprises the steps that after a shooting device obtains a real-time view picture, the real-time view picture is transmitted to a display screen arranged on a handle part of a cloud deck to be displayed, a user determines a shooting target through the display screen arranged on the handle part of the cloud deck in a touch mode, and after the cloud deck detects touch operation of the user on the display screen, the cloud deck determines the shooting target according to the touch operation. After the shot target is determined, the cradle head obtains sensing data of the distance between the shot target and the shooting equipment by controlling the distance sensor, and the real-time distance between the shooting equipment and the shot target can be calculated by analyzing the sensing data.

In some embodiments, the distance sensor includes a transmitting device for transmitting a ranging signal and a receiving device for receiving the ranging signal transmitted by the shooting target, and the obtaining of the real-time distance between the shooting device and the shooting target according to the sensing data collected by the distance sensor includes:

and determining the real-time distance between the shooting target and the shooting equipment according to the reflection signal received by the receiving device.

Illustratively, after the user determines the shooting target by operating the shooting device, the cradle head transmits a real-time ranging signal to the shooting target by controlling the transmitting device, and controls the receiving device to receive a reflection signal, wherein the reflection signal is a reflection signal when the real-time ranging signal meets the shooting target. Calculating the time difference between the emission of the real-time ranging signal and the reception of the reflected signal; and calculating the real-time distance between the shooting equipment and the shooting target according to the time difference. And if the propagation degree of the ranging signal in the medium is v, and the time difference between the transmission of the real-time ranging signal and the reception of the reflected signal is t, the real-time distance D between the shooting device and the shooting target is v t.

Preferably, the receiving devices of the distance sensor are multiple and arranged in an array, that is, the receiving devices are receiving device arrays, so that the received reflected signals are more accurate in precision.

S102: and controlling a focus follower motor engaged with a lens of the shooting device according to the real-time distance to drive the lens to zoom so as to maintain the size of the shooting target in a shooting picture of the shooting device at a target size.

The focus follower motor is detachably mounted on a bearing seat of the holder and meshed with a lens of the shooting device, and is used for driving the lens of the shooting device to zoom. Specifically, follow burnt ware motor detachably and bear on the seat that bears of cloud platform and with the following burnt ring toothing of the camera lens of shooting equipment, and follow burnt ware motor and be connected with the focusing wheel electricity of cloud platform, thereby can drive the output shaft rotation of following burnt ware motor through rotatory focusing wheel and control the camera lens of shooting equipment and zoom.

The distance between the shooting device and the shooting target, the focal length of the lens and the rotating position of the focus follower motor are in corresponding relation, the corresponding relation can be called by measuring the real-time distance between the shooting device and the shooting target, and the focus follower motor meshed with the lens of the shooting equipment is controlled according to the corresponding relation to drive the lens to zoom, so that the size of the shooting target in a shooting picture of the shooting equipment is maintained at a target size, and a sliding zooming effect is realized when the shooting equipment is used for shooting.

Or, according to the acquired real-time distance between the shooting device and the shooting target, determining the relative rotation position of the focus follower motor in the corresponding distance when the shooting device and the shooting target are at the corresponding distance, so that the corresponding relation among the distance between the shooting device and the shooting target, the focal length of the lens and the rotation position of the focus follower motor can be determined, and the corresponding relation is called according to the real-time distance to control the focus follower motor engaged with the lens of the shooting equipment to drive the lens to zoom, so that the size of the shooting target in the shooting picture of the shooting equipment is maintained at the target size, and the sliding zoom effect is realized when the shooting equipment is used for shooting.

Referring to fig. 5, for example, the lens of the photographing apparatus may be zoomed, and then the lens is a zoom lens. That is, the lens includes a first lens component L1, a second lens component L2 and a third lens component L3 arranged along the optical axis in sequence, wherein the second lens component L2 is movable in the optical axis direction between the first lens component L1 and the third lens component L3, so as to change the focal length of the lens, and therefore, a first mapping relationship exists between the position of the second lens component L2 in the optical axis direction and the focal length of the lens.

The first mapping relationship may be expressed as: x is k₁*f+b₁Where f is the focal length of the lens, x is the position of the second lens component L2 in the optical axis direction, and k₁、b₁The constant may be calculated by measuring the positions of the two second lens assemblies L2 in the optical axis direction corresponding to the two focal lengths.

The first lens assembly L1 may be a single lens or a lens assembly including at least two lenses, the second lens assembly L2 may be a single lens or a lens assembly including at least two lenses, and the third lens assembly L3 may be a single lens or a lens assembly including at least two lenses.

In this embodiment, the first lens element L1, the second lens element L2, and the third lens element L3 are all single-piece lenses, but the first lens element L1, the second lens element L2, and the third lens element L3 may be only single-piece lenses.

Meanwhile, the lens is zoomed by driving the second lens assembly L2 to displace in the optical axis direction by the focus follower motor, so that there is a second mapping relationship between the rotation position of the focus follower motor and the position of the second lens assembly L2 in the optical axis direction.

The second mapping relationship may be expressed as: mp ═ k₂F + b, wherein f is the focal length of the lens, mp (motorposition) is the rotational position of the motor of the focus follower, k₂And b is a transmission parameter for driving the second lens assembly L2 to move in the optical axis direction by the rotation of the focus follower motor, wherein the transmission parameter is a constant and can be calculated by measuring the rotation positions of two focus follower motors corresponding to two focal lengths.

Further, within the shooting range of the shooting device, that is, within the variation range of the focal length f of the lens, the focal length f of the lens has a relationship with the object distance d, where f is d (w1/w2), where d is the object distance, w1 is the image width of the shooting target in the shooting picture of the shooting device, and w2 is the object width of the shooting target, as shown in fig. 6.

The rotational position mp of the focus follower motor can therefore be expressed as mp ═ k₂*d*(w1/w2)+b。

The error between the object distance and the distance between the shooting device and the shooting target can be ignored, therefore, the current object distance D can be equal to the real-time distance D between the current shooting device and the shooting target.

Thus, the rotational position of the focus follower motor is equivalently expressed as mp ═ k₂*D*(w1/w2)+b

Since w1/w2 is constant during photographing with one slide zoom, k is constant₂Is constant, so k is in the process of shooting with one sliding zoom₂W1/w2 may be equivalent to k ═ k₂D (w1/w2), k is a constant.

Therefore, the rotational position of the focus follower motor during a single slide zoom shot can be expressed as mp ═ k × D + b, where k and b are constants.

That is, a real-time distance D between the photographing device and the photographing target, a focal length f of the lens, and a rotation position mp of the focus follower motor are in a corresponding relationship, that is, the rotation position mp of the focus follower motor can be correspondingly controlled by obtaining the distance D between the photographing device and the photographing target, the focal length f of the lens can be adjusted according to the rotation position mp of the focus follower motor, and then the size of the photographing target in a photographing picture of the photographing apparatus is the target size.

Wherein, the corresponding relation between the distance D between the shooting device and the shooting target, the focal length f of the lens and the rotating position mp of the focus follower motor is often relatedCoefficient of measure k₂And b, the calibration can be carried out in advance, so that the calibrated corresponding relation is obtained and stored in a storage of the holder. After the target size of the shooting target is determined, the corresponding relation can be called through the real-time distance between the shooting device and the shooting target, and then a focus follower motor engaged with a lens of the shooting equipment is controlled according to the corresponding relation to drive the lens to zoom so as to maintain the size of the shooting target in a shooting picture of the shooting equipment at the target size, so that a sliding zooming effect is realized when the shooting equipment is used for shooting.

Or, according to the acquired real-time distance between the shooting device and the shooting target, determining the relative rotation position of the focus follower motor in the corresponding distance when the shooting device and the shooting target are away from each other by the corresponding distance, so that the corresponding relation among the distance between the shooting device and the shooting target, the focal length of the lens and the rotation position of the focus follower motor can be determined, and controlling the focus follower motor engaged with the lens of the shooting equipment according to the corresponding relation to drive the lens to zoom, so that the size of the shooting target in the shooting picture of the shooting equipment is maintained at the target size, and the sliding zoom effect is realized when the shooting equipment is used for shooting.

In some embodiments, the photographing control method further includes:

when the shooting equipment is a first distance away from the shooting target, determining a first measurement distance between the shooting equipment and the shooting target according to sensing data collected by the distance sensor, and acquiring a first measurement rotating position of a motor of the focus follower;

when the shooting equipment is a second distance away from the shooting target, determining a second measurement distance between the shooting equipment and the shooting target according to sensing data collected by the distance sensor, and acquiring a second measurement rotating position of a motor of the focus follower; when the shooting device is away from the shooting target by the first distance and the second distance, the size of the shooting target in a shooting picture of the shooting device is the target size;

then, the controlling a focus follower motor engaged with a lens of the photographing apparatus according to the real-time distance to drive the lens to zoom includes:

driving the lens to zoom according to the first measured distance, the first measured rotational position, the second measured distance, the second measured rotational position, and the real-time distance.

Specifically, the driving the lens to zoom according to the first measured distance, the first measured rotational position, the second measured distance, the second measured rotational position, and the real-time distance includes:

determining the corresponding relation between the rotating position of the focus follower motor and the distance between the shooting equipment and the shooting target when the size of the shooting target in the shooting picture is the target size according to the first measuring distance, the first measuring rotating position, the second measuring distance and the second measuring rotating position;

and controlling the focus follower motor to drive the lens to zoom according to the real-time distance and the corresponding relation.

For example, the first distance and the second distance are different in size, and the distance between the photographing apparatus and the photographing target may be changed by moving the photographing apparatus or by moving the photographing target, which is not limited herein.

When the shooting device is at a first distance from the shooting target, the cradle head responds to a corresponding instruction issued by a user to adjust the size of the shooting target in a shooting picture of the shooting device to be a target size, controls the distance sensor to measure the distance between the shooting target and the shooting device, acquires first sensing data acquired by the distance measurement performed by the distance sensor, determines a first measurement distance D1 between the shooting device and the shooting target by analyzing the first sensing data, and records a corresponding first measurement rotating position mp1 of a motor of the focus follower when the distance between the shooting device and the shooting target is a first measurement distance D1.

When the shooting device is at a second distance from the shooting target, the cradle head responds to a corresponding instruction issued by a user to adjust the size of the shooting target in a shooting picture of the shooting device to be the target size, controls the distance sensor to measure the distance between the shooting target and the shooting device, acquires second sensing data acquired by the distance measurement performed by the distance sensor, determines a second measurement distance D2 between the shooting device and the shooting target by analyzing the second sensing data, and records that a corresponding second measurement rotating position mp2 of the focus follower motor is at the same time when the distance between the shooting device and the shooting target is the second measurement distance D2.

Calibrating a coefficient to be determined according to a corresponding relation between a real-time distance D between the shooting device and a shooting target, a focal length f of a lens and a rotating position mp of a focus follower motor according to the first measuring distance D1, the first measuring rotating position mp1, the second measuring distance D2 and the second measuring rotating position mp2, and driving the lens to zoom according to the real-time distance D and the calibrated corresponding relation, so that when the shooting equipment moves in a focal length change range, the size of the shooting target in a shooting picture of the shooting equipment is the target size.

In some embodiments, when the shooting device is a first distance away from the shooting target, determining that a size of the shooting target in a shooting picture of the shooting device is the target size, specifically:

when the shooting device is a first distance away from the shooting target, a first size selection instruction of a user is obtained, and the focus follower motor is controlled to drive the lens to zoom according to the first size selection instruction so as to adjust the size of the shooting target in a shooting picture of the shooting device to the target size.

For example, when the shooting device is a first distance away from the shooting target, a first size selection instruction of a user is obtained, and the focus follower motor is controlled according to the first size selection instruction to drive the lens to zoom so as to adjust the size of the shooting target in the shooting picture of the shooting device to the target size, where the first size selection instruction may be that after the user determines the size of the shooting target, the shooting target is issued to the shooting device by operating a display screen arranged on a pan-tilt head or a focusing wheel arranged on the pan-tilt head, or may be that a corresponding button or a display interface of the shooting device is triggered.

In some embodiments, the shooting device is detachably carried on a carrying seat of the pan/tilt head, the focus following device motor is detachably carried on the carrying seat of the pan/tilt head, a focusing wheel is arranged on a handheld portion of the pan/tilt head, and the obtaining of the first size selection instruction of the user includes:

and detecting a first rotation operation of the focusing wheel by the user, and determining a first size selection instruction according to the detected first rotation operation.

The focusing wheel can be rotated to control the lens driven by the focus follower motor on the bearing seat of the holder to zoom, so that the size of the shot target in the shot picture of the shooting device is adjusted. When the user rotates the focusing wheel to the first position, the size of the shooting target in the shooting picture of the shooting device is the target size, and the holder regards the rotation operation of the user on the focusing wheel as a selection instruction for determining that the shooting target is the first size in the shooting picture of the shooting device.

In some embodiments, when the shooting device is a second distance away from the shooting target, determining that a size of the shooting target in a shooting picture of the shooting device is the target size, specifically:

when the shooting device is a second distance away from the shooting target, a second size selection instruction of a user is obtained, and the focus follower motor is controlled to drive the lens to zoom according to the second size selection instruction so as to adjust the size of the shooting target in a shooting picture of the shooting device to the target size.

For example, when the shooting device is a second distance away from the shooting target, a second size selection instruction of the user is obtained, and the focus follower motor is controlled to drive the lens to zoom according to the second size selection instruction so as to adjust the size of the shooting target in the shooting picture of the shooting device to the target size, where the second size selection instruction may be that after the user determines the size of the shooting target, the shooting target is issued to the shooting device by operating a display screen arranged on the pan-tilt head or a focusing wheel arranged on the pan-tilt head, or may be that a corresponding button or a display interface of the shooting device is triggered.

In some embodiments, the shooting device is detachably carried on a carrying seat of the pan/tilt head, the focus following device motor is detachably carried on the carrying seat of the pan/tilt head, a focusing wheel is arranged on a handheld portion of the pan/tilt head, and the obtaining of the second size of the user selects the instruction, including:

the focusing wheel can be rotated to control the lens driven by the focus follower motor on the bearing seat of the holder to zoom, so that the size of the shot target in the shot picture of the shooting device is adjusted. When the user rotates the focusing wheel to the second position, the size of the shooting target in the shooting picture of the shooting device is the target size, and the holder regards the rotation operation of the user on the focusing wheel as a selection instruction for determining that the shooting target is the second size in the shooting picture of the shooting device.

Referring to fig. 7, fig. 7 is a schematic block diagram of a structure of a photographing control device according to an embodiment of the present application.

The photographing control apparatus 400 includes a processor 401 and a memory 402, and the processor 401 and the memory 402 are connected by a bus, such as an I2C (Inter-integrated Circuit) bus.

The Processor 401 may be a Central Processing Unit (CPU), other general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, a discrete hardware component, etc., and the general-purpose Processor may be a microprocessor or the Processor may be any conventional Processor, etc.

The Memory 402 may be a Flash chip, a Read-Only Memory (ROM) magnetic disk, an optical disk, a usb disk, or a removable hard disk.

The processor 401 is adapted to run a computer program stored in the memory 402 and to carry out the following steps when executing said computer program:

acquiring a real-time distance between the shooting equipment and a shooting target according to sensing data acquired by the distance sensor;

and controlling a focus follower motor engaged with a lens of the shooting device according to the real-time distance to drive the lens to zoom so as to maintain the size of the shooting target in a shooting picture of the shooting device at a target size.

In some embodiments, the processor 401 is further configured to implement the following steps:

when the shooting equipment is a first distance away from the shooting target, determining a first measurement distance between the shooting equipment and the shooting target according to sensing data collected by the distance sensor, and acquiring a first measurement rotating position of a motor of the focus follower;

when the shooting device is a second distance away from the shooting target, determining a second measurement distance between the shooting device and the shooting target according to sensing data collected by the distance sensor, and acquiring a second measurement rotating position of the focus follower motor, wherein when the shooting device is the first distance and the second distance away from the shooting target, the size of the shooting target in a shooting picture of the shooting device is the target size;

when the processor 401 controls a focus follower motor engaged with the lens of the shooting device to drive the lens to zoom according to the real-time distance, the processor is specifically configured to:

driving the lens to zoom according to the first measured distance, the first measured rotational position, the second measured distance, the second measured rotational position, and the real-time distance.

In some embodiments, when the processor 401 drives the lens to zoom according to the first measured distance, the first measured rotating position, the second measured distance, the second measured rotating position, and the real-time distance, the processor is specifically configured to:

determining the corresponding relation between the rotating position of the focus follower motor and the distance between the shooting equipment and the shooting target when the size of the shooting target in the shooting picture is the target size according to the first measuring distance, the first measuring rotating position, the second measuring distance and the second measuring rotating position;

and controlling the focus follower motor to drive the lens to zoom according to the real-time distance and the corresponding relation.

In some embodiments, the processor 401 is further configured to implement the following steps:

when the shooting device is a first distance away from the shooting target, acquiring a first size selection instruction of a user, and controlling the focus follower motor to drive the lens to zoom according to the first size selection instruction so as to adjust the size of the shooting target in a shooting picture of the shooting device to the target size; and/or the presence of a gas in the gas,

when the shooting device is a second distance away from the shooting target, a second size selection instruction of a user is obtained, and the focus follower motor is controlled to drive the lens to zoom according to the second size selection instruction so as to adjust the size of the shooting target in a shooting picture of the shooting device to the target size.

In some embodiments, the shooting device is detachably carried on a carrying seat of the pan/tilt head, the focus follower motor is detachably carried on the carrying seat of the pan/tilt head, a focusing wheel is arranged on a handheld part of the pan/tilt head, wherein,

when the processor 401 obtains the instruction selected by the first size of the user, it is specifically configured to:

detecting a first rotation operation of the focusing wheel by the user, and determining a first size selection instruction according to the detected first rotation operation; and/or the presence of a gas in the gas,

when the processor 401 obtains the instruction selected by the second size of the user, the instruction is specifically configured to:

and detecting a second rotation operation of the focusing wheel by the user, and determining a second size selection instruction according to the detected first rotation operation.

In some embodiments, the distance sensor includes a transmitting device for transmitting a ranging signal and a receiving device for receiving the ranging signal transmitted by the shooting target, and when the processor 401 acquires a real-time distance between the shooting device and the shooting target according to sensing data acquired by the distance sensor, the processor is specifically configured to:

and determining the real-time distance between the shooting target and the shooting equipment according to the reflection signal received by the receiving device.

In some embodiments, the shooting device is detachably carried on a carrying seat of the pan/tilt head, and the focus follower motor is detachably carried on the carrying seat of the pan/tilt head.

In some embodiments, the target size is set by a user.

In some embodiments, the photographic target is selected by a user.

In some embodiments, the shooting device is detachably carried on a carrying seat of a cradle head, the cradle head is in communication connection with the shooting device, a display screen is arranged on a handheld portion of the cradle head, and the shooting target is determined by detecting selection operation of a user on the display screen displaying the shooting image of the shooting device.

In some embodiments, the distance sensor is detachably disposed on the photographing apparatus.

In some embodiments, the shooting device is detachably carried on a carrying seat of the holder, and the distance sensor is detachably carried on the carrying seat of the holder.

It should be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the shooting control apparatus described above may refer to the corresponding process in the foregoing shooting control method embodiment, and is not described herein again.

The embodiment of the present application further provides a storage medium, where a computer program is stored in the storage medium, where the computer program includes program instructions, and the processor executes the program instructions to implement the steps of the shooting control method provided in the above embodiment.

The storage medium may be an internal storage unit of the shooting control device, the pan-tilt or the focus tracker motor described in any of the foregoing embodiments, for example, a hard disk or a memory of the shooting control device, the pan-tilt or the focus tracker motor. The storage medium may also be an external storage device of the shooting control device, the pan/tilt/focus follower motor, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card), and the like, which are equipped on the shooting control device, the pan/tilt or focus follower motor.

It should also be understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

While the invention has been described with reference to specific embodiments, the scope of the invention is not limited thereto, and those skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the invention. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.