Method and apparatus for deformation measurement, electronic device, and storage medium

An electronic device comprising:

• a camera array;
• a mobile platform;
• a memory configured to store a computer program;
• and
• a processor connected to the memory and configured to execute the computer program stored in the memory to cause the electronic device to:
• in response to the mobile platform moving to a first monitoring position in an area to-be-measured, obtain a first image by photographing, by a first camera in the camera array, monitoring points in a first area to-be-measured in the area to-be-measured, and obtain a second image by photographing, by a second camera in the camera array, monitoring points in a second area to-be-measured in the area to-be-measured;
• wherein the monitoring points in the first area to-be-measured are disposed on one side of the first monitoring position, the monitoring points in the second area to-be-measured are disposed on the other side of the first monitoring position, and the first camera has an opposite photographing direction with the second camera;
• in response to the mobile platform moving to a second monitoring position in the area to-be-measured, obtain a third image by photographing, by the first camera, the monitoring points in the first area to-be-measured, and obtain a fourth image by photographing, by the second camera, the monitoring points in the second area to-be-measured;
• determine J1 first monitoring points according to the first image and the third image;
• and determine J2 second monitoring points according to the second image and the fourth image;
• wherein the J1 first monitoring points are monitoring points comprised in both the first image and the third image, and the J2 second monitoring points are monitoring points comprised in both the second image and the fourth image;
• and
• obtain a horizontal displacement amount and a vertical subsidence amount of each of the J1 first monitoring points and a horizontal displacement amount and a vertical subsidence amount of each of the J2 second monitoring points according to the first image, the second image, the third image, and the fourth image;
• wherein the number of J1 first monitoring points is even, and the J1 first monitoring points comprises J1/2 third monitoring points and J1/2 fourth monitoring points;
• wherein the number of J2 second monitoring points is even, and the J2 second monitoring points comprises J2/2 fifth monitoring points and J2/2 sixth monitoring points;
• and
• wherein in terms of obtaining the horizontal displacement amount and the vertical subsidence amount of each of the J1 first monitoring points and the horizontal displacement amount and the vertical subsidence amount of each of the J2 second monitoring points according to the first image, the second image, the third image, and the fourth image, the processor is configured to execute the computer program stored in the memory to cause the electronic device to:
• obtain a horizontal displacement amount of each of the J1/2 third monitoring points, a horizontal displacement amount of each of the J2/2 fifth monitoring points, a vertical subsidence amount of each of the J1/2 fourth monitoring points, and a vertical subsidence amount of each of the J2/2 sixth monitoring points according to the first image, the second image, the third image, and the fourth image.

A non-transitory computer-readable storage medium configured to store a computer program which, when executed by a processor, causes the processor to:

• in response to the mobile platform moving to a first monitoring position in an area to-be-measured, obtain a first image by photographing, by a first camera in the camera array, monitoring points in a first area to-be-measured in the area to-be-measured, and obtain a second image by photographing, by a second camera in the camera array, monitoring points in a second area to-be-measured in the area to-be-measured;
• wherein the monitoring points in the first area to-be-measured are disposed on one side of the first monitoring position, the monitoring points in the second area to-be-measured are disposed on the other side of the first monitoring position, and the first camera has an opposite photographing direction with the second camera;
• in response to the mobile platform moving to a second monitoring position in the area to-be-measured, obtain a third image by photographing, by the first camera, the monitoring points in the first area to-be-measured, and obtain a fourth image by photographing, by the second camera, the monitoring points in the second area to-be-measured;
• determine J1 first monitoring points according to the first image and the third image;
• and determine J2 second monitoring points according to the second image and the fourth image;
• wherein the J1 first monitoring points are monitoring points comprised in both the first image and the third image, and the J2 second monitoring points are monitoring points comprised in both the second image and the fourth image;
• and
• obtain a horizontal displacement amount and a vertical subsidence amount of each of the J1 first monitoring points and a horizontal displacement amount and a vertical subsidence amount of each of the J2 second monitoring points according to the first image, the second image, the third image, and the fourth image;
• wherein in terms of obtaining the horizontal displacement amount and the vertical subsidence amount of each of the J1 first monitoring points and the horizontal displacement amount and the vertical subsidence amount of each of the J2 second monitoring points according to the first image, the second image, the third image, and the fourth image, the computer program causes the processor to:
• obtain J1 first pixel coordinates corresponding to the J1 first monitoring points in the first image;
• obtain J1 second pixel coordinates corresponding to the J1 first monitoring points in the third image;
• for each of the J1 first monitoring points, obtain a first vertical variation and a first horizontal variation corresponding to a first monitoring point according to a first pixel coordinate and a second pixel coordinate corresponding to the first monitoring point;
• obtain J2 third pixel coordinates corresponding to the J2 second monitoring points in the second image;
• obtain J2 fourth pixel coordinates corresponding to the J2 second monitoring points in the fourth image;
• for each of the J2 second monitoring points, obtain a second vertical variation and a second horizontal variation corresponding to a second monitoring point according to a third pixel coordinate and a fourth pixel coordinate corresponding to the second monitoring point;
• and determine the horizontal displacement amount and the vertical subsidence amount of each of the J1 first monitoring points and the horizontal displacement amount and the vertical subsidence amount of each of the J2 second monitoring points according to J1 first vertical variations and J1 first horizontal variations corresponding to the J1 first monitoring points, J2 second vertical variations and J2 second horizontal variations corresponding to the J2 second monitoring points, a first angle and a second angle of the camera array, J1 first object space resolution corresponding to the J1 first monitoring points, J2 second object space resolution corresponding to the J2 second monitoring points, J1 first distances, J2 second distances, and six-degree-of-freedom movements of the apparatus for deformation measurement, wherein the first angle is an angle between an optical axis of the first camera and a horizontal plane, the second angle is an angle between an optical axis of the second camera and the horizontal plane, the J1 first distances are distances between the first camera and each of the J1 first monitoring points respectively, and the J2 second distances are distances between the second camera and each of the J2 second monitoring points respectively;
• or
• wherein the number of J1 first monitoring points is even, and the J1 first monitoring points comprises J1/2 third monitoring points and J1/2 fourth monitoring points;
• the number of J2 second monitoring points is even, and the J2 second monitoring points comprises J2/2 fifth monitoring points and J2/2 sixth monitoring points;
• and in terms of obtaining the horizontal displacement amount and the vertical subsidence amount of each of the J1 first monitoring points and the horizontal displacement amount and the vertical subsidence amount of each of the J2 second monitoring points according to the first image, the second image, the third image, and the fourth image, the computer program causes the processor to:
• obtain a horizontal displacement amount of each of the J1/2 third monitoring points, a horizontal displacement amount of each of the J2/2 fifth monitoring points, a vertical subsidence amount of each of the J1/2 fourth monitoring points, and a vertical subsidence amount of each of the J2/2 sixth monitoring points according to the first image, the second image, the third image, and the fourth image.