A method for generating sinusoidal structured light field by spatio-temporal binary encoding
A binary coding and structured light technology, applied in the direction of optical devices, measuring devices, instruments, etc., can solve the problems of poor coding flexibility and limited application range, and achieve wide application range, high sinusoidal, high-speed and high-precision three-dimensional surface shape measurement effect
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[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings, working principles and embodiments.
[0019] A spatio-temporal binary coding proposed by the present invention mainly includes four parts of standard fringe gray scale equalization, threshold quantization, error diffusion and coding. Among them, threshold quantization, error diffusion and coding are closely related.
[0020] attached figure 1 1 is a standard sinusoidal fringe pattern generated by the computer, and its mathematical form is
[0021] (1)
[0022] in f 0 Indicates the frequency of a standard sinusoidal fringe, with a period of p reciprocal relationship.
[0023] According to the formula (1), the standard sinusoidal stripe 1 grayscale distribution range generated by the computer is 0~1, and a space-time binary encoding method proposed by the present invention divides it into 2 evenly according to the grayscale distribution of the standard...
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