© COPYRIGHT 2017 SPIE. Downloading of the abstract is permitted for personal use only. Structured light projection is one of the most useful methods for accurate three-dimensional scanning. Video projectors are typically used as the illumination source. However, because video projectors are not designed for structured light systems, some considerations such as gamma calibration must be taken into account. In this work, we present a simple method for gamma calibration of video projectors. First, the experimental fringe patterns are normalized. Then, the samples of the fringe patterns are sorted in ascending order. The sample sorting leads to a simple three-parameter sine curve that is fitted using the Gauss-Newton algorithm. The novelty of this method is that the sorting process removes the effect of the unknown phase. Thus, the resulting gamma calibration algorithm is significantly simplified. The feasibility of the proposed method is illustrated in a three-dimensional scanning experiment.
|Original language||American English|
|State||Published - 1 Jan 2017|
|Event||Proceedings of SPIE - The International Society for Optical Engineering - |
Duration: 1 Jan 2017 → …
|Conference||Proceedings of SPIE - The International Society for Optical Engineering|
|Period||1/01/17 → …|
Juarez-Salazar, R., Diaz-Ramirez, V. H., Robledo-Sanchez, C., & Diaz-Gonzalez, G. (2017). On the use of video projectors for three-dimensional scanning. Paper presented at Proceedings of SPIE - The International Society for Optical Engineering, . https://doi.org/10.1117/12.2273252