Ultrafast 3-D shape measurement with an off-the-shelf DLP projector.

This paper presents a technique that reaches 3-D shape measurement speed beyond the digital-light-processing (DLP) projector's projection speed. In particular, a "solid-state" binary structured pattern is generated with each micro-mirror pixel always being at one status (ON or OFF). By this means, any time segment of projection can represent the whole signal, thus the exposure time can be shorter than the projection time. A sinusoidal fringe pattern is generated by properly defocusing a binary one, and the Fourier fringe analysis means is used for 3-D shape recovery. We have successfully reached 4,000 Hz rate (80 μs exposure time) 3-D shape measurement speed with an off-the-shelf DLP projector.

[1]  M. Takeda,et al.  Fourier transform profilometry for the automatic measurement of 3-D object shapes. , 1983, Applied optics.

[2]  Xianyu Su,et al.  Automated phase-measuring profilometry using defocused projection of a Ronchi grating , 1992 .

[3]  Larry J. Hornbeck,et al.  Digital Light Processing for high-brightness high-resolution applications , 1997, Electronic Imaging.

[4]  Szymon Rusinkiewicz,et al.  Stripe boundary codes for real-time structured-light range scanning of moving objects , 2001, Proceedings Eighth IEEE International Conference on Computer Vision. ICCV 2001.

[5]  Marc Levoy,et al.  Real-time 3D model acquisition , 2002, ACM Trans. Graph..

[6]  Peisen Huang,et al.  Microscopic phase-shifting profilometry based on digital micromirror device technology. , 2002, Applied optics.

[7]  Fu-Pen Chiang,et al.  High-speed 3-D shape measurement based on digital fringe projection , 2003 .

[8]  R. Chellappa.  Introduction of New Editor-in-Chief , 2005 .

[9]  Szymon Rusinkiewicz,et al.  Spacetime stereo: a unifying framework for depth from triangulation , 2005, IEEE Transactions on Pattern Analysis and Machine Intelligence.

[10]  Peisen S. Huang,et al.  Novel method for structured light system calibration , 2006 .

[11]  Song Zhang,et al.  High-resolution, real-time three-dimensional shape measurement , 2006 .

[12]  Xiaolin Li,et al.  Multilevel quality-guided phase unwrapping algorithm for real-time three-dimensional shape reconstruction. , 2007, Applied optics.

[13]  Shuntaro Yamazaki,et al.  Temporal Dithering of Illumination for Fast Active Vision , 2008, ECCV.

[14]  Song Zhang,et al.  Flexible 3-D shape measurement using projector defocusing. , 2009, Optics letters.

[15]  Zhaoyang Wang,et al.  Three-dimensional shape measurement with a fast and accurate approach. , 2009, Applied optics.

[16]  Qican Zhang,et al.  Dynamic 3-D shape measurement method: A review , 2010 .

[17]  Milind Kr.  Advances in Measurement Systems , 2010 .

[18]  Song Zhang.  Recent progresses on real-time 3D shape measurement using digital fringe projection techniques , 2010 .

[19]  Mitsuo Takeda,et al.  Measurements of Extreme Physical Phenomena by Fourier Fringe Analysis , 2010 .

[20]  Song Zhang,et al.  Superfast phase-shifting method for 3-D shape measurement. , 2010, Optics express.

[21]  Joaquim Salvi,et al.  A state of the art in structured light patterns for surface profilometry , 2010, Pattern Recognit..

[22]  Sai Siva Gorthi,et al.  Fringe projection techniques: Whither we are? , 2010 .