Linear solving of video camera internal parameters by utilizing two intersected same circles and common tangent
A technology of camera internal parameters and common tangents, which is applied in the field of computer research and can solve problems such as difficulty in making calibration blocks and inconvenient operation
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[0036] The invention proposes to use any two intersecting same circles and common tangents on the plane as the target linearly to determine the internal parameters of the camera. The experimental module structure diagram that the present invention adopts is as figure 1 shown. Embodiment of the present invention is described in more detail with an example below:
[0037] The experimental template used in the camera calibration method using two intersecting same circles and common tangents is any two intersecting same circles and common tangents on the plane, such as figure 1 shown. Utilize the method among the present invention to carry out calibration for the video camera of experiment, concrete steps are as follows:
[0038] (1) Fitting the curve equation in the image
[0039] The image resolution that the present invention adopts is 640 * 480 pixels, takes a plurality of experimental pictures from different directions with video camera, selects 6 relatively clear picture...
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