Optimal checkerboard selection for structured light system calibration

William Lohry; Ying Xu; Song Zhang

doi:10.1117/12.823829

10 September 2009 Optimal checkerboard selection for structured light system calibration

William Lohry, Ying Xu, Song Zhang

Proceedings Volume 7432, Optical Inspection and Metrology for Non-Optics Industries; 743202 (2009) https://doi.org/10.1117/12.823829
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

Structured light system calibration has been widely studied over the decades, and a variety of calibration approaches have been proposed. Among these methods, the flexible method using flat checkerboard is widely adopted. However, there is a lack of studies on selecting the optimal checker size for high accuracy calibration, whilst it is vital to understanding this factor. This paper presents a systematic study on how the checker size affects the calibration accuracy for a structured light system, and provides a general guideline to select the optimal size. For this initial study, 7 different checker sizes are selected, and experiments demonstrated that the system achieved the best calibration accuracy within a certain range of checker size.

Citation Download Citation

William Lohry, Ying Xu, and Song Zhang "Optimal checkerboard selection for structured light system calibration", Proc. SPIE 7432, Optical Inspection and Metrology for Non-Optics Industries, 743202 (10 September 2009); https://doi.org/10.1117/12.823829

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