Object segmentation from invalid points such as shadows and background is a key factor in digital fringe projection 3D shape measurement. Conventional methods for object segmentation based on modulation level normally...
详细信息
ISBN:
(纸本)9781538673454
Object segmentation from invalid points such as shadows and background is a key factor in digital fringe projection 3D shape measurement. Conventional methods for object segmentation based on modulation level normally work well in dark background, however, they lose accuracy with a variety of backgrounds. In this paper, we proposed two coding images and applied them in an improved framework for object segmentation. The shadows are detected from modulation histogram, and the background is detected from intensity histogram of the coding images. Experiments are designed on different background conditions for analyzing and verifying the segmentation performance of the proposed technique.
By research on lossy compression technology about about the encrypt coding image, lossy predictive coding is analyzed, and Optimal predictors altogether with optimal quantization was set up. Meanwhile, coding image mo...
详细信息
ISBN:
(纸本)9780769536828
By research on lossy compression technology about about the encrypt coding image, lossy predictive coding is analyzed, and Optimal predictors altogether with optimal quantization was set up. Meanwhile, coding image model produces a fairly good effect by application on the encrypt image at the entrance of a network user on the platform of information network under WEB.
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