Combination of Sinusoidal and Single Binary Pattern Projection for Fast 3D Surface Reconstruction

Abstract

A new method for 3D surface reconstruction is introduced combining classical fringe projection technique and binary single pattern projection. The new technique allows keeping the high accuracy obtained by phase shifting but solves the additional necessary period identification by replacing the extensive Gray-code sequence by a single image of a certain binary pattern. The core of the new method is an algorithm which realizes the assignment of corresponding image regions using epipolar constraint and image correlation. An algorithm is introduced generating a single binary pattern which is optimized concerning image correlation. The results of first measurements show the high robustness of the new method and advantages of the optimized patterns compared to the use of conventional random patterns.KeywordsEpipolar LinePattern ProjectionFringe ImageFringe ProjectionProjected PixelThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.