A method for calibrating the reflex camera by using the properties of a single sphere and the midpoint of the chord
A catadioptric and camera technology, applied in the field of computer vision, can solve the problem of complex circle point selection
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[0070] The invention proposes a method for linearly determining internal parameters of a parabolic catadioptric camera by using a sphere in space as a target. The experimental template structural schematic diagram that the present invention adopts is as figure 1 shown. The implementation of the present invention will be described in more detail with an example below.
[0071] The experimental template used in the calibration of parabolic catadioptric cameras based on spheres in space is a sphere in space, such as figure 1 As shown, the ball is Q. Utilize the method among the present invention to carry out calibration for the parabolic catadioptric camera that is used for experiment, concrete steps are as follows:
[0072] 1. Fit image boundary and target curve equation
[0073] The image size used in the present invention is 1063×1033. Take three experimental images of the target with a parabolic catadioptric camera, read the images, use the Edge function in Matlab to ext...
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