Systematic geometric demarcation method for reflection three-dimensional measurement of stripe
A technology of three-dimensional measurement and geometric calibration, which can be used in measurement devices, instruments, optical devices, etc., and can solve the problems of increasing measurement time and measurement cost.
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[0007] The present invention will be further described below in conjunction with the accompanying drawings and examples. figure 1 A reflection projection imaging model for 3D measurement of fringe reflections is described. The coordinate system of the stripe display device (taking LCD as an example) and the camera is defined as and . The geometric calibration of the fringe reflection three-dimensional measurement system is determined and The geometric relationship between, generally through the rotation matrix and translation vector express. The reflective projection imaging model can be briefly described as follows: first, the LCD is converted to the camera coordinate system; then the LCD is mirrored on the plane mirror; finally, its mirror image is formed on the camera imaging plane. Feature points on LCD About the Mirror Point of a Plane Mirror The homogeneous coordinate mathematical expression of is
[0008] (1)
[0009] is the normal direction o...
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