Half-Period Gray-Level Coding Strategy for Absolute Phase Retrieval

N-ary gray-level (nGL) coding strategy is an effective method for absolute phase retrieval in the fringe projection technique. However, the conventional nGL method contains many unwrapping errors at the boundaries of codewords. In addition, the number of codewords is limited in only one pattern. Con...

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Bibliographic Details
Main Authors: Zipeng Ran, Bo Tao, Liangcai Zeng, Xiangcheng Chen
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Photonics
Subjects:
Online Access:https://www.mdpi.com/2304-6732/9/7/492