NDLI: Algorithm for decreasing nonlinear gamma effect with digital fringe projection images

Content Provider	IEEE Xplore Digital Library
Author	Tiendee, S. Lerdsudwichai, C. Sumriddetchkajorn, S. Sinthanayothin, C.
Copyright Year	2010
Description	Author affiliation: Computer Engineering Department, Faculty of Engineering, Kasetsart University, Bangkok, Thailand (Tiendee, S.; Sumriddetchkajorn, S.) \|\| National Electronics and Computer Technology Center, Nation Science and Technology Development Agency, Pathumthani, Thailand (Lerdsudwichai, C.; Sinthanayothin, C.)
Abstract	Digital fringe projection using a digital projector is an extensively technique used for 3D surface profile. Fringe pattern images projected by digital projector, appear nonlinear gamma effect. This effect is an error of digital projector, which gamma of the fringe pattern images is not stable. The nonlinear gamma effect demonstrates strip on 3D surface image which is a significant error. Therefore, this paper proposed an algorithm for decreasing nonlinear gamma effect in digital fringe projection. First, fringe pattern images were captured by digital camera, which composed of object and background images. These images suppose to have no distortion by a digital camera. Then, the background image in y axis of image plane was used to compare between real phase and ideal phase. Output of the process was a phase different data which could be use for phase compensation on phase values of fringe pattern images. Finally, the nonlinear gamma effect could decrease by our proposed algorithm. To verify, the fringe pattern images from laboratory, which have nonlinear gamma effect, were used to compute by the proposed algorithm. Result showed smoothly and truthfully 3D surface image. Addition, the proposed algorithm can be a real time processing and independent with any digital projector and digital camera.
Starting Page	1
Ending Page	4
File Size	313617
Page Count	4
File Format	PDF
ISBN	9781424498741
ISSN	21570981
e-ISBN	9781424498765
DOI	10.1109/ICTKE.2010.5692906
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-24
Publisher Place	Thailand
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Surface reconstruction Solid modeling Nonlinear Gamma Effect 3D Surface Profile and Phase Compensation Filtering algorithms Three dimensional displays Digital cameras Digital Fringe Projection Table lookup Mathematical model
Content Type	Text
Resource Type	Article

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