Camera calibration method and calibration device
A calibration method and camera technology, applied in the field of cameras, can solve problems such as complicated camera calibration procedures
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Embodiment 1
[0019] This embodiment provides a test fixture for testing the camera, refer to Figure 1-Figure 4 , the camera is installed in a test fixture for testing the camera, and the test fixture for testing the camera includes a fixing base 10, a test assembly 20 and a mounting plate 30, wherein the fixing base 10 is used to be installed on the ground, a wall or a flat panel, The mounting plate 30 is arranged on one side of the fixing base 10, the mounting plate 30 is provided with a mounting hole 31, and the camera is installed through the mounting hole 31, thereby realizing the fixing of the camera relative to the test fixture, and the test assembly 20 is arranged on the fixing base 10 and the mounting plate Between 30, the test assembly 20 is surrounded by a plurality of test boards, and the inner wall of each test board is provided with a black and white checkerboard, as follows Figure 4 Shown are the schematic diagrams of black and white checkerboards on the inner wall of each ...
Embodiment 2
[0025] see Figure 5 to Figure 7 , a camera calibration method, the method comprising:
[0026] S11: Obtain the current working parameters of the camera, and obtain a test grid image based on the current working parameters;
[0027] In the specific implementation process of the present invention, the specific steps may be as follows: the test grid image is a plurality of adjacent black and white checkerboard grids, and a plurality of adjacent black and white checkerboard grids are enclosed to form a test area; the test area The viewing angle of the camera is covered, and a plurality of the black and white checkerboards are distributed in different directions of the viewing angle of the camera.
[0028] Wherein, the camera is adjusted based on the current working parameters, and the test grid image is used as the calibration image, and in the test grid image, a plurality of adjacent black and white checkerboards are enclosed to form a test area; The test area covers the viewi...
Embodiment 3
[0045] see Figure 8 , a camera calibration device, the camera calibration device includes:
[0046] Obtaining module 21: used to obtain the current working parameters of the camera, and obtain a test grid image based on the current working parameters;
[0047] Traversing module 22: for traversing the test grid image, and preliminarily locating the central area of the test grid image;
[0048] Forming module 23: used to take the corner point of the central area of the test grid image as the central corner point, and extend outward in a spiral direction based on the central corner point, and form an involute positioning trajectory;
[0049] Determination module 24: for determining other corner points based on the involute positioning trajectory;
[0050] An updating module 25: used for updating the positioning point of the camera according to the other corner points, and performing calibration of the camera.
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