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10 July 2023 Improve pixel-wise structured light system calibration method
Song Zhang
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Proceedings Volume 12524, Dimensional Optical Metrology and Inspection for Practical Applications XII ; 1252405 (2023) https://doi.org/10.1117/12.2665965
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States
Abstract
Our previously proposed pixel-wise structured light system calibration method works well within a depth range. Yet, it is difficult to be employed for large depth range calibration because making a calibration target to achieve high-calibration accuracy is non-trivial. This paper discusses two possible means to address this challenge, adapting the standard feature detection algorithm and employ another step to create pixel-wise error functions by measuring a flat surface. Experimental results demonstrate that either method could further improve measurement accuracy of the pixel-wise calibration method, especially for large depth range measurements.
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Song Zhang "Improve pixel-wise structured light system calibration method", Proc. SPIE 12524, Dimensional Optical Metrology and Inspection for Practical Applications XII , 1252405 (10 July 2023); https://doi.org/10.1117/12.2665965
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KEYWORDS
Calibration
Structured light
3D acquisition
3D modeling
Mathematical modeling
Detection and tracking algorithms
Industry
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