阅读说明：本技术 群体迁移速度测量系统及方法 (Group migration speed measuring system and method ) 是由 谢超奇 于 2020-07-08 设计创作，主要内容包括：本发明涉及一种群体迁移速度测量系统,包括：距离辨识设备,用于识别第二拍摄图像对应的伪影去除图像中与参考沙漠蝗虫目标对应的沙漠蝗虫子图像以作为第二参考子图像,还基于第一参考子图像到第二参考子图像的移动距离、参考沙漠蝗虫在第一拍摄图像对应的伪影去除图像的成像景深和在第二拍摄图像对应的伪影去除图像的成像景深的均值以及地面摄像机的成像焦距计算参考沙漠蝗虫的实体移动距离。本发明还涉及一种群体迁移速度测量方法。本发明的群体迁移速度测量系统及方法结构紧凑、数据有效。由于能够对沙漠蝗虫群体的迁移速度进行针对性检测,从而为相关部门执行蝗虫治理的应对措施提供有价值的参考数据。(The invention relates to a group migration speed measuring system, comprising: and the distance identification device is used for identifying a desert locust sub-image corresponding to the reference desert locust target in the artifact removal image corresponding to the second shot image to serve as a second reference sub-image, and calculating the entity moving distance of the reference desert locust based on the moving distance from the first reference sub-image to the second reference sub-image, the imaging depth of field of the reference desert locust in the artifact removal image corresponding to the first shot image, the mean value of the imaging depth of field of the artifact removal image corresponding to the second shot image and the imaging focal length of the ground camera. The invention also relates to a group migration speed measuring method. The system and the method for measuring the group migration speed have compact structure and effective data. The migration speed of the desert locust colony can be detected in a targeted manner, so that valuable reference data are provided for relevant departments to execute measures for locust control.)

1. A population migration velocity measurement system, the system comprising:

the ground camera is packaged on a platform near a crop planting area, the platform is higher than the crop planting area, and the ground camera performs camera shooting operation right above the ground camera by adopting a visual field vertical to a ground plane so as to obtain a first shot image corresponding to the current moment.

2. The population migration velocity measurement system of claim 1, wherein:

the ground camera is further used for obtaining a second shot image at a subsequent moment of the current moment, and the time interval between the subsequent moment and the current moment is preset duration.

3. The population migration velocity measurement system of claim 2, further comprising:

the sharpening processing equipment is arranged on the platform, connected with the ground camera and used for receiving the first shot image or the second shot image to serve as an image to be processed and executing geometric mean filtering processing on the image to be processed so as to obtain and output a corresponding sharpening processed image;

the data enhancement equipment is connected with the sharpening processing equipment and is used for executing histogram equalization processing based on a density function on the received sharpening processed image so as to obtain and output a corresponding data enhancement image;

the artifact removing device is connected with the data enhancement device and used for executing artifact removing processing on the received data enhanced image so as to obtain and output a corresponding artifact removed image;

the signal analysis device is used for identifying more than one sub-image of the desert locust from the artifact removal image corresponding to the first shooting image based on the gray level threshold of the desert locust, taking the desert locust corresponding to the sub-image of the desert locust occupying the largest area proportion of the artifact removal image corresponding to the first shooting image as a reference desert locust target, and taking the sub-image of the desert locust occupying the largest area proportion of the artifact removal image corresponding to the first shooting image as a first reference sub-image;

the distance identification device is connected with the signal analysis device and used for identifying a desert locust sub-image corresponding to the reference desert locust target in the artifact removal image corresponding to the second shot image as a second reference sub-image;

the distance recognition device further calculates the entity moving distance of the reference desert locust based on the moving distance from the first reference sub-image to the second reference sub-image, the mean value of the imaging depth of the reference desert locust in the artifact removed image corresponding to the first shot image and the imaging depth of the reference desert locust in the artifact removed image corresponding to the second shot image, and the imaging focal length of the ground camera;

the speed detection mechanism is connected with the distance identification device and is used for dividing the entity moving distance by the preset time length to obtain the moving speed of the reference desert locust;

the signal analysis device, the distance identification device and the speed detection mechanism cooperate to acquire the moving speed of each desert locust corresponding to each sub-image of the desert locust in the artifact removal image corresponding to the first shot image in the same calculation mode for acquiring the moving speed of the reference desert locust;

the parameter extraction mechanism is connected with the speed detection mechanism and is used for calculating the arithmetic mean value of the moving speed of each desert locust corresponding to each sub-image of the desert locust in the artifact removal image corresponding to the first shot image so as to obtain the group migration speed;

wherein the signal analysis device, the distance identification device and the speed detection mechanism cooperate to acquire the moving speed of each desert locust corresponding to each sub-image of the desert locust in the artifact removed image corresponding to the first captured image in the same calculation mode for acquiring the moving speed of the reference desert locust comprises: and excluding desert locusts which exist in the artifact-removed image corresponding to the first captured image but do not exist in the artifact-removed image corresponding to the second captured image from the respective desert locusts.

4. The population migration velocity measurement system of claim 3, further comprising:

and the frequency division duplex transmission mechanism is arranged on the platform, is connected with the parameter extraction mechanism and is used for sending the received group migration speed to a server of a farmland management department responsible for the crop planting area through a frequency division duplex communication link.

5. The population migration velocity measurement system of claim 4, wherein said system further comprises:

and the field display equipment is arranged on the platform, is connected with the parameter extraction mechanism and is used for receiving and displaying the group migration speed.

6. A method for measuring population migration velocity, the method comprising:

the method comprises the steps that a ground camera is used and packaged on a platform near a crop planting area, the platform is higher than the crop planting area, and the ground camera carries out camera shooting operation right above the ground camera by adopting a visual field vertical to a ground plane so as to obtain a first shot image corresponding to the current moment.

7. The population migration velocity measurement method according to claim 6, wherein:

the ground camera is further used for obtaining a second shot image at a subsequent moment of the current moment, and the time interval between the subsequent moment and the current moment is preset duration.

8. The population migration velocity measurement method of claim 7, further comprising:

using a sharpening processing device, arranged on the platform, connected with the ground camera, and used for receiving the first shot image or the second shot image as an image to be processed, and performing geometric mean filtering processing on the image to be processed to obtain and output a corresponding sharpening processed image;

the data enhancement equipment is connected with the sharpening processing equipment and used for executing histogram equalization processing based on a density function on the received sharpening processing image so as to obtain and output a corresponding data enhancement image;

using artifact removing equipment connected with the data enhancement equipment and used for executing artifact removing processing on the received data enhanced image so as to obtain and output a corresponding artifact removed image;

using signal analysis equipment for identifying more than one sub-image of the desert locust from the artifact removed image corresponding to the first shot image based on the gray level threshold of the desert locust, taking the desert locust corresponding to the sub-image of the desert locust occupying the largest area proportion of the artifact removed image corresponding to the first shot image as a reference desert locust target, and taking the sub-image of the desert locust occupying the largest area proportion of the artifact removed image corresponding to the first shot image as a first reference sub-image;

using a distance recognition device connected with the signal analysis device and used for recognizing a desert locust sub-image corresponding to the reference desert locust target in the artifact removal image corresponding to the second shot image as a second reference sub-image;

the distance recognition device further calculates the entity moving distance of the reference desert locust based on the moving distance from the first reference sub-image to the second reference sub-image, the mean value of the imaging depth of the reference desert locust in the artifact removed image corresponding to the first shot image and the imaging depth of the reference desert locust in the artifact removed image corresponding to the second shot image, and the imaging focal length of the ground camera;

a speed detection mechanism is used and connected with the distance identification device and used for dividing the entity moving distance by the preset time length to obtain the moving speed of the reference desert locust;

the signal analysis device, the distance identification device and the speed detection mechanism cooperate to acquire the moving speed of each desert locust corresponding to each sub-image of the desert locust in the artifact removal image corresponding to the first shot image in the same calculation mode for acquiring the moving speed of the reference desert locust;

a parameter extraction mechanism connected with the speed detection mechanism and used for calculating the arithmetic mean value of the moving speed of each desert locust corresponding to each sub-image of the desert locust in the artifact removal image corresponding to the first shot image so as to obtain a group migration speed;

wherein the signal analysis device, the distance identification device and the speed detection mechanism cooperate to acquire the moving speed of each desert locust corresponding to each sub-image of the desert locust in the artifact removed image corresponding to the first captured image in the same calculation mode for acquiring the moving speed of the reference desert locust comprises: and excluding desert locusts which exist in the artifact-removed image corresponding to the first captured image but do not exist in the artifact-removed image corresponding to the second captured image from the respective desert locusts.

9. The population migration velocity measurement method of claim 8, further comprising:

and the frequency division duplex transmission mechanism is arranged on the platform, is connected with the parameter extraction mechanism and is used for sending the received group migration speed to a server of a farmland management department responsible for the crop planting area through a frequency division duplex communication link.

10. The population migration velocity measurement method of claim 9, further comprising:

and using an on-site display device, arranged on the platform, connected with the parameter extraction mechanism, and used for receiving and displaying the group migration speed.