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.

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PID https://www.doi.org/10.6084/m9.figshare.c.3762656
PID https://www.doi.org/10.6084/m9.figshare.c.3762656.v1
URL http://dx.doi.org/10.6084/m9.figshare.c.3762656.v1
URL http://dx.doi.org/10.6084/m9.figshare.c.3762656
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Author Yuanzheng Gong
Author Zhang, Song
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Collected From Datacite
Hosted By figshare
Publication Date 2010-01-01
Publisher Figshare
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Language UNKNOWN
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keyword FOS: Chemical sciences
keyword FOS: Health sciences
keyword FOS: Physical sciences
keyword FOS: Biological sciences
keyword FOS: Computer and information sciences
system:type other
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Source https://science-innovation-policy.openaire.eu/search/other?orpId=dedup_wf_001::a03049bae8a8abe4bd7f8136d3d48bd3
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Last Updated 19 December 2020, 14:10 (CET)
Created 19 December 2020, 14:10 (CET)