阅读说明：本技术 一种图像拍摄方法及无人机 (Image shooting method and unmanned aerial vehicle ) 是由 李阳 于 2018-07-18 设计创作，主要内容包括：本申请公开了一种图像拍摄方法及无人机,该方法包括：接收控制终端发送的拍摄指令；获取预先设置的起始焦距和结束焦距；从所述起始焦距变化为结束焦距,并在焦距变化的过程中拍摄图像。可见,通过实施本申请所描述的方法,可以简化图像拍摄难度,并且也可提高拍摄的精度。(The application discloses an image shooting method and an unmanned aerial vehicle, wherein the method comprises the following steps: receiving a shooting instruction sent by a control terminal; acquiring a preset initial focal length and a preset end focal length; and changing the initial focal length to the final focal length, and shooting an image in the process of changing the focal length. Therefore, by implementing the method described in the application, the image shooting difficulty can be simplified, and the shooting precision can also be improved.)

An image shooting method is applied to an unmanned aerial vehicle, and comprises the following steps:

receiving a shooting instruction sent by a control terminal;

acquiring a preset initial focal length and a preset end focal length;

and changing the initial focal length to the final focal length, and shooting an image in the process of changing the focal length.

The method according to claim 1, wherein before receiving the shooting instruction sent by the control terminal, the method further comprises:

receiving the starting focal length and the ending focal length sent by the control terminal;

setting the starting focal length and the ending focal length.

The method according to claim 1 or 2, characterized in that the method further comprises:

acquiring a preset focal length change speed;

the changing from the starting focal length to an ending focal length comprises:

and changing from the initial focal length to the end focal length according to the focal length change speed.

The method according to claim 3, wherein before receiving the shooting instruction sent by the control terminal, the method further comprises:

receiving the focal length change speed sent by the control terminal;

setting the focal length change speed.

The method according to claim 3 or 4, wherein the changing from the starting focal length to the ending focal length according to the focal length change speed and capturing the image during the focal length change comprises:

and changing from the initial focal length to the end focal length according to the focal length change speed in the primary exposure time, and shooting an explosion image in the process of focal length change.

The method according to claim 5, wherein the exposure time is preset or determined according to the start focal length, the end focal length and the focal length change speed.

The method of claim 1 or 2, wherein before changing from the starting focal length to an ending focal length within an exposure time, the method further comprises:

acquiring preset exposure time;

determining the focal length change speed according to the initial focal length, the end focal length and the exposure time;

the changing from the starting focal length to the ending focal length and shooting the image in the process of the focal length changing comprise:

and changing from the initial focal length to the end focal length according to the focal length change speed within the exposure time for one time, and shooting an explosion image in the process of focal length change.

The method according to claim 6 or 7, wherein before the receiving of the shooting instruction sent by the control terminal, the method further comprises:

receiving the exposure time sent by the control terminal;

and setting the exposure time.

The method according to any one of claims 1 to 4, wherein the capturing of the image during the focus variation comprises:

multiple images are taken through multiple exposures during the course of focal length change, the multiple images being used to generate an explosion image.

The method according to any one of claims 1 to 9, wherein before the preset starting focal length and ending focal length are obtained, the method comprises:

and rotating a holder bearing the camera so as to enable the framed shot object to be positioned in the middle of the display picture of the control terminal.

The method according to any one of claims 1 to 10, wherein the focal length variation range from the starting focal length to the ending focal length is smaller than a maximum focal length variation range.

The method according to any one of claims 1 to 11, wherein the drone is hovering during a change of focal length.

The method according to any one of claims 1 to 12, further comprising:

in the process of focal length change, if a remote control flight operation instruction for the unmanned aerial vehicle is received, the shooting task is ended, and prompt information for prompting the shooting task to be stopped is sent to the control terminal.

An information setting method is applied to a control terminal, and the method comprises the following steps:

acquiring a starting focal length and an ending focal length to be set;

and sending the starting focal length and the ending focal length to an unmanned aerial vehicle so that the unmanned aerial vehicle can set the starting focal length and the ending focal length.

The method of claim 14, further comprising:

acquiring the focal length change speed to be set;

and sending the focal length change speed to an unmanned aerial vehicle so that the unmanned aerial vehicle can set the focal length change speed.

The method according to claim 14 or 15, characterized in that the method further comprises:

acquiring exposure time to be set;

and sending the exposure time to an unmanned aerial vehicle so that the unmanned aerial vehicle sets the exposure time.

The method according to any one of claims 14 to 16, wherein the focal length variation range from the starting focal length to the ending focal length is smaller than a maximum focal length variation range.

The method of any one of claims 14 to 17, further comprising:

in the process that the focal length of the unmanned aerial vehicle is changed, a remote control flight operation instruction is sent to the unmanned aerial vehicle;

and receiving prompt information which is sent by the unmanned aerial vehicle and used for prompting the termination of the shooting task.

The method of any one of claims 14 to 18, further comprising:

receiving a plurality of images sent by the unmanned aerial vehicle, wherein the plurality of images are shot by the unmanned aerial vehicle through multiple exposures in the process of focal length change;

and processing the plurality of images to obtain an explosion image.

A drone, characterized in that it comprises: memory, processor, communication device and camera, wherein:

the memory to store program instructions;

the processor invoking the program instructions for:

receiving a shooting instruction sent by a control terminal through the communication device;

acquiring a preset initial focal length and a preset end focal length;

and changing the initial focal length to the end focal length, and shooting an image through the shooting device in the process of changing the focal length.

The drone of claim 20, wherein the processor, invoking the program instructions, is further configured to:

before a shooting instruction sent by a control terminal is received through the communication device, the starting focal length and the ending focal length sent by the control terminal are received through the communication device;

setting the starting focal length and the ending focal length.

A drone according to claim 20 or 21, wherein the processor, invoking the program instructions, is further configured to:

acquiring a preset focal length change speed;

the way for the processor to change from the starting focal length to the ending focal length is specifically:

and changing from the initial focal length to the end focal length according to the focal length change speed.

The drone of claim 22, wherein the processor, invoking the program instructions, is further configured to:

before a shooting instruction sent by a control terminal is received through the communication device, the focal length change speed sent by the control terminal is received through the communication device;

setting the focal length change speed.

A drone according to claim 22 or 23, characterised in that the processor varies from the starting focal length to the ending focal length according to the speed of focal length variation, and in that the means for capturing images by the capturing device during the course of the focal length variation are in particular:

and changing from the initial focal length to the end focal length according to the focal length change speed in the primary exposure time, and shooting an explosion image through the shooting device in the process of focal length change.

A drone according to claim 24, characterised in that the exposure time is preset or determined as a function of the starting focal length, the ending focal length and the speed of change of focal length.

A drone according to claim 20 or 21, wherein the processor, invoking the program instructions, is further configured to:

acquiring preset exposure time before the initial focal length is changed into the end focal length within the exposure time;

determining the focal length change speed according to the initial focal length, the end focal length and the exposure time;

the processor changes from the starting focal length to the ending focal length, and the mode of shooting the image through the shooting device in the process of changing the focal length is specifically as follows:

and changing from the initial focal length to the end focal length according to the focal length change speed within the exposure time once, and shooting an explosion image through the shooting device in the process of focal length change.

A drone according to claim 25 or 26, wherein the processor, invoking the program instructions, is further configured to:

receiving, by the communication device, the exposure time transmitted by a control terminal before receiving, by the communication device, a shooting instruction transmitted by the control terminal;

and setting the exposure time.

An unmanned aerial vehicle according to any one of claims 20-23, wherein the mode that the processor captures an image through the capturing device in the process of focal length change is specifically:

and shooting a plurality of images through the shooting device through a plurality of exposures in the process of focal length change, wherein the plurality of images are used for generating an explosion image.

A drone as claimed in any one of claims 20 to 28, wherein the processor, invoking the program instructions is further configured to:

and before the preset initial focal length and the preset end focal length are obtained, rotating a holder carrying a camera so as to enable the framed shot object to be positioned in the middle of the display picture of the control terminal.

A drone as claimed in any one of claims 20 to 29, wherein the focal length variation range from the start focal length to the end focal length is less than the maximum focal length variation range.

A drone as claimed in any one of claims 20 to 30, wherein the drone is hovering during a change in focal length.

A drone as claimed in any one of claims 20 to 31, wherein the processor, invoking the program instructions is further configured to:

in the process of focal length change, if a remote control flight operation instruction for the unmanned aerial vehicle is received, the shooting task is ended, and prompt information for prompting the shooting task to be stopped is sent to the control terminal.

A control terminal, characterized in that the control terminal comprises: a memory, a processor, and a communication device, wherein:

the memory to store program instructions;

the processor invoking the program instructions for:

acquiring a starting focal length and an ending focal length to be set;

through communication device will the starting focal length with end focus sends to unmanned aerial vehicle, so that unmanned aerial vehicle is right the starting focal length with end focus sets up.

The control terminal of claim 33, wherein the processor, invoking the program instructions, is further configured to:

acquiring the focal length change speed to be set;

through communication device will focus change rate sends to unmanned aerial vehicle, so that unmanned aerial vehicle is right focus change rate sets up.

The control terminal of claim 33 or 34, wherein the processor, invoking the program instructions, is further configured to:

acquiring exposure time to be set;

and sending the exposure time to an unmanned aerial vehicle through the communication device so that the unmanned aerial vehicle can set the exposure time.

The control terminal according to any one of claims 33 to 35, wherein a focal length variation range from the start focal length to the end focal length is smaller than a maximum focal length variation range.

The control terminal of any of claims 33-36, wherein the processor, when invoked with the program instructions, is further configured to:

in the process that the focal length of the unmanned aerial vehicle is changed, a remote control flight operation instruction is sent to the unmanned aerial vehicle through the communication device;

and receiving prompt information which is sent by the unmanned aerial vehicle and used for prompting the termination of the shooting task through the communication device.

The control terminal of any of claims 33-36, wherein the processor, when invoked with the program instructions, is further configured to:

receiving a plurality of images sent by the unmanned aerial vehicle through the communication device, wherein the plurality of images are shot by the unmanned aerial vehicle through multiple exposures in the process of focal length change;

and processing the plurality of images to obtain an explosion image.