A novel color encoding fringe projection profilometry based on wavelet ridge technology and phase-crossing

作     者：Wang, Yang Sun, Yankee Zhang, Tianqi Chen, Deyun Yu, Xiaoyang 

作者机构：Postdoctoral Station of Computer Science and Technology Harbin University of Science and Technology Harbin150080 China Higher Educational Key Laboratory for Measuring and Control Technology Instrumentations of Heilongjiang Province Harbin University of Science and Technology Harbin150080 China 

出 版 物：《International Journal of Performability Engineering》 (Int. J. Perform. Eng.)

年 卷 期：2018年第14卷第5期

页      面：917-926页

核心收录：

学科分类：0810[工学-信息与通信工程] 070207[理学-光学] 08[工学] 0804[工学-仪器科学与技术] 0835[工学-软件工程] 0803[工学-光学工程] 0701[理学-数学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：This work was partly financially supported through grants from the National Natural Science Foundation of China (No. 60903083 and 61502123)  Scientific Planning Issues of Education of Heilongjiang Province (No. GBC1211062)  and the Program of New Century Excellent Talents (No. 1155-ncet-008). The authors thank the 3 anonymous reviewers for their helpful suggestions 

主　　题：Color 

摘      要：There are two challenges in three-dimensional (3D) profilometry, such as real-time and accuracy. Color-encoding fringe projection profilometry (CEFPP) can solve these challenges to some extent. It encodes in the red, green, and blue color channels, and CEFP can use three completely different fringe patterns. In this paper, a novel CEFP that only uses one color fringe image acquired by experiential 3CCD cameras is presented. First, the wavelet transform coefficients phase at the ridge position under the Morlet wavelet is theoretically clarified. A simple and quick method that acquires the scaling coefficient is introduced. The wrapped phases in the three color channels of the color fringe image are obtained by wavelet bridge position. The phase original of color fringe pattern is defined as one white color. Using an evolution function defined in this paper, the phase-crossing is located. An absolute phase is acquired by a three coding pitch method in a two coding direction. In order to verify the presented method, some profilometry experiments are carried out in the constructed 3D profilometry system using one projector and one 3CCD camera. The experimental results showed that a maximum standard deviation of measurement error is 1.42mm, and the reconstruction surface of a gypsum head portrait can be determined. © 2018 Totem Publisher, Inc. All rights reserved.