TY - GEN
T1 - Two-Step Fringe Analysis for Fringe Projection Profile Measurement
AU - Chen, Terry Yuan Fang
AU - Huang, Jhih Yao
AU - Huang, Bo Wei
N1 - Publisher Copyright:
© The Society for Experimental Mechanics, Inc. 2024.
PY - 2024
Y1 - 2024
N2 - Digital fringe projection method is a noncontact surface profiling technique. For accurate measurement, phase-shifting technique is usually adopted. However, the specimen may be moved during the time of image capture, and not suitable for dynamic measurement. In order to overcome this drawback, a digital fringe projection system consisting a color projector, a color CCD camera, and a PC is proposed. The phase shift is introduced between two computer-generated fringe patterns with different colors, which is projected onto the object to be measured simultaneously. The projected fringe patterns are captured by the color CCD camera and separated and processed by a two-step fringe analysis scheme using spiral phase transform and optical flow techniques. The proposed system was applied to a real specimen. The test results are reported.
AB - Digital fringe projection method is a noncontact surface profiling technique. For accurate measurement, phase-shifting technique is usually adopted. However, the specimen may be moved during the time of image capture, and not suitable for dynamic measurement. In order to overcome this drawback, a digital fringe projection system consisting a color projector, a color CCD camera, and a PC is proposed. The phase shift is introduced between two computer-generated fringe patterns with different colors, which is projected onto the object to be measured simultaneously. The projected fringe patterns are captured by the color CCD camera and separated and processed by a two-step fringe analysis scheme using spiral phase transform and optical flow techniques. The proposed system was applied to a real specimen. The test results are reported.
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U2 - 10.1007/978-3-031-50499-0_5
DO - 10.1007/978-3-031-50499-0_5
M3 - Conference contribution
AN - SCOPUS:85190685781
SN - 9783031504983
T3 - Conference Proceedings of the Society for Experimental Mechanics Series
SP - 29
EP - 31
BT - Advancement of Optical Methods and Fracture and Fatigue, Volume 3 - Proceedings of the 2023 Annual Conference on Experimental and Applied Mechanics
A2 - Furlong, Cosme
A2 - Hwang, Chi-Hung
A2 - Shaw, Gordon
A2 - Berke, Ryan
A2 - Pataky, Garrett
A2 - Hutchens, Shelby
PB - Springer
T2 - SEM Annual Conference and Exposition on Experimental and Applied Mechanics, 2023
Y2 - 5 June 2023 through 8 June 2023
ER -