{"title":"用于立体偏转测量的通用缝合测量法","authors":"Lin Yang, Yuankun Liu, Wenjing Chang","doi":"10.1016/j.optcom.2024.131139","DOIUrl":null,"url":null,"abstract":"<div><div>A slope stitching algorithm is proposed to fulfill the measurement of a large object under the limited field of view in a stereo deflectometry system. The tested object can be easily divided into three sub-apertures under a unique world coordinate system w.r.t. the valid regions of the two cameras. Then the sub-apertures are stitched via slopes instead of point cloud. And, to produce a much smoother slope in the common regions of two cameras, a weighted average method is used to guide the merging process of the slope. The method expands the measurement area into a binocular combination area without the need for predefined markers or moving any devices. Experimental results confirm the feasibility and efficiency of our proposed algorithm, highlighting its advantages in testing large-size optical elements with high accuracy and cost-effectiveness.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":null,"pages":null},"PeriodicalIF":2.2000,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0030401824008769/pdfft?md5=e1e4fb755671894a0a750948a265a28c&pid=1-s2.0-S0030401824008769-main.pdf","citationCount":"0","resultStr":"{\"title\":\"A general stitching measurement for stereo deflectometry\",\"authors\":\"Lin Yang, Yuankun Liu, Wenjing Chang\",\"doi\":\"10.1016/j.optcom.2024.131139\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>A slope stitching algorithm is proposed to fulfill the measurement of a large object under the limited field of view in a stereo deflectometry system. The tested object can be easily divided into three sub-apertures under a unique world coordinate system w.r.t. the valid regions of the two cameras. Then the sub-apertures are stitched via slopes instead of point cloud. And, to produce a much smoother slope in the common regions of two cameras, a weighted average method is used to guide the merging process of the slope. The method expands the measurement area into a binocular combination area without the need for predefined markers or moving any devices. Experimental results confirm the feasibility and efficiency of our proposed algorithm, highlighting its advantages in testing large-size optical elements with high accuracy and cost-effectiveness.</div></div>\",\"PeriodicalId\":19586,\"journal\":{\"name\":\"Optics Communications\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2024-09-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S0030401824008769/pdfft?md5=e1e4fb755671894a0a750948a265a28c&pid=1-s2.0-S0030401824008769-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Optics Communications\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0030401824008769\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Optics Communications","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0030401824008769","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"OPTICS","Score":null,"Total":0}
A general stitching measurement for stereo deflectometry
A slope stitching algorithm is proposed to fulfill the measurement of a large object under the limited field of view in a stereo deflectometry system. The tested object can be easily divided into three sub-apertures under a unique world coordinate system w.r.t. the valid regions of the two cameras. Then the sub-apertures are stitched via slopes instead of point cloud. And, to produce a much smoother slope in the common regions of two cameras, a weighted average method is used to guide the merging process of the slope. The method expands the measurement area into a binocular combination area without the need for predefined markers or moving any devices. Experimental results confirm the feasibility and efficiency of our proposed algorithm, highlighting its advantages in testing large-size optical elements with high accuracy and cost-effectiveness.
期刊介绍：
Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.
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