PMA Newsline overviews the
Northwestern University Comp Photo Lab work on fast and high resolution 3D depth imaging. The main idea of the paper "MC3D: Motion Contrast 3D Scanning" by Nathan Matsuda and Mohit Gupta, presented on April 24 at the IEEE International Conference on Computational Photography is to limit the structured light laser scanning by the area where the 2D camera detects a change. That way the static areas are not scanned. A
Vimeo video explains the advantages of this approach:
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