Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. (a) Image pattern captured by CCD before Gamma correction, and (b) the 1-D Fourier spectrum of (a). (c) Image pattern captured by CCD after Gamma correction, and (d) the 1-D Fourier spectrum of (c). Figure Legend: From: Single orthogonal sinusoidal grating for gamma correction in digital projection phase measuring profilometry Opt. Eng. 2013;52(5): doi: /1.OE
Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Mapping of projector input grayscale values to CCD camera captured image intensities (a) before and (b) after Gamma correction. Figure Legend: From: Single orthogonal sinusoidal grating for gamma correction in digital projection phase measuring profilometry Opt. Eng. 2013;52(5): doi: /1.OE
Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. (a) Orthogonal grating pattern captured by CCD camera, and (b) corresponding 2-D Fourier spectrum distribution. Figure Legend: From: Single orthogonal sinusoidal grating for gamma correction in digital projection phase measuring profilometry Opt. Eng. 2013;52(5): doi: /1.OE
Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. System imaging procedure. Figure Legend: From: Single orthogonal sinusoidal grating for gamma correction in digital projection phase measuring profilometry Opt. Eng. 2013;52(5): doi: /1.OE
Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Experiment: (a) The measured object, and (b) one of the deformed fringe patterns. The unwrapping phase distribution (c) before and (d) after gamma correction, and (e) the comparison between the cross-sections of (c) (dashed line) and (d) (solid line). Figure Legend: From: Single orthogonal sinusoidal grating for gamma correction in digital projection phase measuring profilometry Opt. Eng. 2013;52(5): doi: /1.OE
Date of download: 6/1/2016 Copyright © 2016 SPIE. All rights reserved. Experiment with the proposed method: (a) One of captured deformed fringe patterns, and the unwrapping phase distributions (b) before and (c) after gamma correction. (d) and (e) denote the corresponding zoom-in views of a partial area of (b) and (c), respectively. Figure Legend: From: Single orthogonal sinusoidal grating for gamma correction in digital projection phase measuring profilometry Opt. Eng. 2013;52(5): doi: /1.OE