Fast Phase-unwrapping Algorithms Used for Structural-light Measurement
结构光测量中快速相位解包裹算法的讨论

Two kinds of fast phase-unwrapping algorithms were studied,namely,Schofield's 4-FFT algorithm and Volkov's deterministic 2-FFT algorithm.Then a DCT-based phase-unwrapping algorithm is proposed.The former two algorithms were proved to enjoy an obvious advantage in processing phase maps with much stochastic noise.Their final unwrapped-phase results are very close to the ideal ones.But,there appear some big errors in unwrapping the experimental phase map with large gradient and some inconsistent regions.It is ...