{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T03:02:58Z","timestamp":1760151778041,"version":"build-2065373602"},"reference-count":26,"publisher":"MDPI AG","issue":"18","license":[{"start":{"date-parts":[[2022,9,9]],"date-time":"2022-09-09T00:00:00Z","timestamp":1662681600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100012166","name":"National Key R&amp;D Program of China","doi-asserted-by":"publisher","award":["2017YFF0106404","52075147"],"award-info":[{"award-number":["2017YFF0106404","52075147"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["2017YFF0106404","52075147"],"award-info":[{"award-number":["2017YFF0106404","52075147"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The camera and projector are indispensable hardware parts of a color fringe projection 3D measurement system. Chromatic aberration between different color channels of the projector and camera has an impact on the measurement accuracy of the color fringe projection 3D profile measurement. There are many studies on camera calibration, but the chromatic aberration of the projector remains a question deserving of further investigation. In view of the complex system architecture and theoretical derivation of the traditional projector radial chromatic aberration method, a phase target based on projector radial chromatic aberration measurement and the correction method are proposed in this paper. This method uses a liquid crystal display with a holographic projection film as the phase target. The liquid crystal display sequentially displays red, green, and blue horizontal and vertical sinusoidal fringe images. The projector projects red, green, and blue horizontal and vertical sinusoidal fringe images to the phase target in turn, and calculates the absolute phases of the display fringes and reflection fringes, respectively. Taking the green channel as the reference channel, a phase coordinate system is established based on the phases of the vertical and horizontal directions displayed on the display screen, using the phase of the reflection fringes on the display screen as the ideal phase value of the phase point. Then, the phase coordinate system of the red and blue channels is transferred to the green phase coordinate system to calculate the chromatic aberration of the red-green channels and the blue-green channels, and pre-compensation is conducted. Experimental results prove that this method can measure and calibrate the radial chromatic aberration of the projector without being affected by the image quality of the camera. The correction effect of this method is that the maximum chromatic aberration of the red-green channel decreases from 1.9591\/pixel to 0.5759\/pixel, and the average chromatic aberration decreases from 0.2555\/pixel to 0.1865\/pixel. In addition, blue-green channel maximum chromatic aberration decreased from 1.8906\/pixel to 0.5938\/pixel, and the average chromatic aberration decreased from 0.2347\/pixel to 0.1907\/pixel. This method can improve the projection quality for fringe projection 3D profile measurement technology.<\/jats:p>","DOI":"10.3390\/s22186845","type":"journal-article","created":{"date-parts":[[2022,9,13]],"date-time":"2022-09-13T04:05:41Z","timestamp":1663041941000},"page":"6845","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Phase Target-Based Calibration of Projector Radial Chromatic Aberration for Color Fringe 3D Measurement Systems"],"prefix":"10.3390","volume":"22","author":[{"given":"Yuzhuo","family":"Zhang","sequence":"first","affiliation":[{"name":"Intelligent Photoelectric Multi-Dimensional Sensing Laboratory, Hebei University of Technology, Tianjin 300400, China"}]},{"given":"Yaqin","family":"Sun","sequence":"additional","affiliation":[{"name":"Intelligent Photoelectric Multi-Dimensional Sensing Laboratory, Hebei University of Technology, Tianjin 300400, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6927-7380","authenticated-orcid":false,"given":"Nan","family":"Gao","sequence":"additional","affiliation":[{"name":"Intelligent Photoelectric Multi-Dimensional Sensing Laboratory, Hebei University of Technology, Tianjin 300400, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8159-7173","authenticated-orcid":false,"given":"Zhaozong","family":"Meng","sequence":"additional","affiliation":[{"name":"Intelligent Photoelectric Multi-Dimensional Sensing Laboratory, Hebei University of Technology, Tianjin 300400, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6645-6647","authenticated-orcid":false,"given":"Zonghua","family":"Zhang","sequence":"additional","affiliation":[{"name":"Intelligent Photoelectric Multi-Dimensional Sensing Laboratory, Hebei University of Technology, Tianjin 300400, China"}]}],"member":"1968","published-online":{"date-parts":[[2022,9,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1377","DOI":"10.1016\/j.cie.2009.07.005","article-title":"Reverse engineering with a structured light system","volume":"57","author":"Sang","year":"2009","journal-title":"Comput. 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