TY - GEN
T1 - On the use of video projectors for three-dimensional scanning
AU - Juarez-Salazar, Rigoberto
AU - Diaz-Ramirez, Victor H.
AU - Robledo-Sanchez, Carlos
AU - Diaz-Gonzalez, Gerardo
N1 - Publisher Copyright:
© COPYRIGHT 2017 SPIE. Downloading of the abstract is permitted for personal use only.
PY - 2017
Y1 - 2017
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85033595454&partnerID=8YFLogxK
U2 - 10.1117/12.2273252
DO - 10.1117/12.2273252
M3 - Contribución a la conferencia
AN - SCOPUS:85033595454
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Optics and Photonics for Information Processing XI
A2 - Diaz-Ramirez, Victor H.
A2 - Marquez, Andres
A2 - Awwal, Abdul A. S.
A2 - Vazquez, Mireya Garcia
A2 - Iftekharuddin, Khan M.
PB - SPIE
T2 - Optics and Photonics for Information Processing XI 2017
Y2 - 7 August 2017 through 8 August 2017
ER -