Slant-invariant Stagger Grid Pattern Projection with Error-tolerant Decoding Technique for One-shot Shape Measurement

We propose a pattern projection method for one-shot active 3D shape measurement to reconstruct movable or deformable scenes. In our method, just one projection pattern which has scene slant-invariant features is used to solve the correspondence between camera and projector pixel coordinates. Additionally, in order to correct correspondence in complex scenes which include discontinuous and overlapping surfaces, we propose an error-tolerant decoding technique with code error detection and correction. Experiment results show the robustness of our method for actual scenes.