Electronic whiteboard equipment automatic pixel mapping method
An electronic whiteboard and pixel mapping technology, applied in the direction of electronic digital data processing, instruments, data processing input/output process, etc., can solve the problems of collection errors, interference spot 5, positioning spot 8 and insufficient light sensitivity, and improve accuracy , Improve the effect of collection quality
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[0030] The present invention will be further described below in conjunction with the accompanying drawings.
[0031] An automatic pixel mapping method for an electronic whiteboard device, comprising the following steps:
[0032] (1) if Figure 5 As shown, the camera plane P3 is divided into m units 6 by a rectangular grid with a unit length of n=3 pixels, each unit 6 includes n×n=3×3=9 pixel points 7, and the number of cycles k= 1;
[0033] (2) Projecting a number of positioning light spots 8 on the projection plane P2 and the camera plane P3;
[0034] (3) Position and collect the image of the camera plane P3 on the j=kth pixel of all m units, collect the grayscale / brightness value of the positioning spot on the m pixel point, and set the grayscale / brightness value to Calculate the center of gravity value G of the positioning spot image on the pixel point of the value ij , store the center of gravity value;
[0035] (4) k=k+1, judge whether k≤n×n is true, if the judgment ...
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