Three-dimensional digital imaging method based on structured light gray level vector
A three-dimensional digital and imaging method technology, applied in the field of three-dimensional imaging, can solve the problems of slow measurement speed and large amount of calculation, and achieve the effect of short time consumption, simple calculation and high spatial resolution
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[0056] Example one
[0057] This embodiment describes a three-dimensional digital imaging device matched with the method of the present invention.
[0058] The three-dimensional digital imaging device matched with the method of the present invention mainly includes a digital projection lighting transmitter, an image sensor receiver and an image processor. Among them, the digital projection lighting transmitter can be a digital liquid crystal projection device (LCD projector), a digital micro-mirror projection device (DMD projector) or a silicon substrate liquid crystal projection device (LCOS projector), which can be easily generated by a computer image processing system The stripe pattern combining gray code and binary code is written into the digital projection device. The image sensor receiver includes an optical imaging lens and a photodetector. The optical imaging lens can be an imaging lens or lens group with a fixed focal length or a variable focal length, a binary optical ...
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[0059] Example two
[0060] Such as Figure 5 In the illustrated structured light gray vector imaging system, the computer or digital signal processor of the image processor 104 generates a projection coded fringe pattern based on the gray vector three-dimensional digital imaging method. Each coding pattern is composed of the coding stripes constituting the coding area and the binary black and white marking stripes constituting the identification area; the coding area contains the code stripes with increasing and decreasing gray value alternately, which can be distinguished in the same code stripe by the gradient of gray value Different pixels within. The present invention refers to the width of each coded stripe as a period. The gray value in the identification area can only be 0 (black) and 1 (white). Its function is to combine the gray value of the coding area to form a unique vector, thereby distinguishing pixels located in different periods . In the pattern sequence, the ...
Example Embodiment
[0068] Example three
[0069] This embodiment describes the corresponding point search process of the present invention based on the epipolar geometric constraint and the code value.
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