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基于结构光多频相移法的煤块表面形貌测量

Surface Profile Measurement of Coal Based on Structured Light Multifrequency Phase-Shifting Technique

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摘要

提出了一种基于结构光多频相移法的相位校正算法。基于相位梯度,建立可靠度判据,将煤块有效测量区域内的相位点分成两类,并依次对其进行校正。实验分析了所提结构光投影算法的适用性,并测量该算法的精度。实验结果表明,所提方法较好地解决了煤块表面形貌测量中无效相位点的问题。

Abstract

A phase correction algorithm is proposed based on the structured light multifrequency phase-shifting technique. The phase points in the effective measurement area of coal are divided into two types and corrected in turn according to the reliability criterion constructed based on phase gradient. The applicability and measurement accuracy of the proposed algorithm are tested experimentally. The experimental results show that the proposed algorithm can be used to well resove the problem of invalid phase points occurred during the surface profile measurement of coal.

Newport宣传-MKS新实验室计划
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DOI:10.3788/lop56.041102

所属栏目:成像系统

基金项目:国家自然科学基金(51576177)、国家973计划(2015CB251501)

收稿日期:2018-08-20

修改稿日期:2018-08-31

网络出版日期:2018-09-04

作者单位    点击查看

吴庆尉:浙江大学热能工程研究所能源清洁利用国家重点实验室, 浙江 杭州 310027
范海东:浙江省能源集团有限公司, 浙江 杭州 310007
关键:浙江省能源集团有限公司, 浙江 杭州 310007
吴迎春:浙江大学热能工程研究所能源清洁利用国家重点实验室, 浙江 杭州 310027
吴学成:浙江大学热能工程研究所能源清洁利用国家重点实验室, 浙江 杭州 310027

联系人作者:吴学成(wuxch@zju.edu.cn)

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引用该论文

Wu Qingwei,Fan Haidong,Guan Jian,Wu Yingchun,Wu Xuecheng. Surface Profile Measurement of Coal Based on Structured Light Multifrequency Phase-Shifting Technique[J]. Laser & Optoelectronics Progress, 2019, 56(4): 041102

吴庆尉,范海东,关键,吴迎春,吴学成. 基于结构光多频相移法的煤块表面形貌测量[J]. 激光与光电子学进展, 2019, 56(4): 041102

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