Abstract:

Because of high density of the scan line point clouds captured by body scanning system, simplification must be progressed. Width decision method is adopted, and the parameter T is set up. When T = 0.006D , point clouds are reduced to 61%. Meanwhile, influencing by the scanning environment and defects of algorithms, there exists the holes in some scan lines which is shoveled using space gray model. First, the holes are detected by chord length, then the model SGM(1,1) of scan line is founded which will complete hole-filling efficiently.

Key words: scan line point clouds, data somplification, hole-filling, width decision method, space gray model