%0 Journal Article
%T Fast Phase-unwrapping Algorithms Used for Structural-light Measurement<br>结构光测量中快速相位解包裹算法的讨论
%A ZHU Yong-jian
%A LI An-hu
%A PAN Wei-qing
%A YU Jian-wu
%A YIN Shao-hui
%A <br>朱勇建
%A 李安虎
%A 潘卫清
%A 余剑武
%A 尹韶辉
%J 光子学报
%D 2009
%I 
%X 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 ...
%K Phase unwrapping
%K FFT
%K DCT
%K Fringe projection measurement
%K Four-step phase shifting<br>相位解包裹
%K 傅里叶变换
%K 离散余弦变换
%K 投影测量
%K 四步相移法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=ED5EA053B67F18191EC290508AA4429E&yid=DE12191FBD62783C&vid=16D8618C6164A3ED&iid=CA4FD0336C81A37A&sid=798FBE8DE1A255B1&eid=847B14427F4BF76A&journal_id=1004-4213&journal_name=光子学报&referenced_num=2&reference_num=12