Journal ArticleDOI
Determination of surface contour by temporal analysis of shadow moiré fringes
Chenggen Quan,Yu Fu,Cho Jui Tay +2 more
TLDR
In this article, a simple temporal analysis algorithm (phase scanning method) is proposed for 3D surface profile measurement of a vibrating object based on shadow moire technique, where a grating is positioned close to a low-frequency vibration object and its shadow is observed through the grating.About:
This article is published in Optics Communications.The article was published on 2004-01-15. It has received 32 citations till now. The article focuses on the topics: Grating & Shadow.read more
Citations
More filters
Journal Article
Fourier-transform method of fringe-pattern analysis for computer-based topography and interferometry
TL;DR: In this article, a fast Fourier transform method of topography and interferometry is proposed to discriminate between elevation and depression of the object or wave-front form, which has not been possible by the fringe-contour generation techniques.
Journal ArticleDOI
Phase-retrieval techniques in fringe-projection profilometry
Chenggen Quan,Wen Chen,C.J. Tay +2 more
TL;DR: FTP, phase-shifting and continuous wavelet transform (CWT) are briefly described and discussed and two-dimensional short-time Fourier transform (STFT) is also presented to extract wrapped phase maps.
Journal ArticleDOI
Instantaneous velocity displacement and contour measurement by use of shadow moiré and temporal wavelet analysis.
TL;DR: A temporal wavelet analysis method is proposed for velocity, displacement, and three-dimensional surface-profile measurement of a continuously deforming object by use of the shadow moiré technique, and results are compared with those obtained from temporal Fourier-transform and mechanical stylus methods.
Journal ArticleDOI
Microsystems for cellular force measurement: a review
Xiaoyu Rayne Zheng,Xin Zhang +1 more
TL;DR: This paper gives overviews on how MEMS are advancing in the field of cell biomechno sensory systems and presents different materials, and mode of studying cell mechanics.
Journal ArticleDOI
Measuring wear of the grinding wheel using machine vision
J. C. Su,Y. S. Tarng +1 more
TL;DR: In this paper, a vision-aided measuring system consisting of a CCD coupled with a telecentric lens, back lighting board and frame grabber was proposed to measure the bearing contours of a grinding wheel.
References
More filters
Journal Article
Fourier-transform method of fringe-pattern analysis for computer-based topography and interferometry
TL;DR: In this article, a fast Fourier transform method of topography and interferometry is proposed to discriminate between elevation and depression of the object or wave-front form, which has not been possible by the fringe-contour generation techniques.
Journal ArticleDOI
Fourier-transform method of fringe-pattern analysis for computer-based topography and interferometry
TL;DR: In this paper, a fast Fourier transform method of topography and interferometry is proposed to discriminate between elevation and depression of the object or wave-front form, which has not been possible by the fringe-contour generation techniques.
Book
Two-Dimensional Phase Unwrapping: Theory, Algorithms, and Software
Dennis C. Ghiglia,Mark D. Pritt +1 more
TL;DR: Methods for Phase Unwrapping, Phase Data, Quality Maps, Masks, and Filters, and Minimum-Norm Methods.
Journal ArticleDOI
Temporal phase-unwrapping algorithm for automated interferogram analysis.
TL;DR: An alternative approach based on one-dimensional unwrapping along the time axis is proposed, applicable to an important subclass of interferometry applications, in which a sequence of incremental phase maps can be obtained leading up to the final phase-difference map of interest.