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Proceedings Paper

Real-time range imaging by phase-stamp method using correlation image sensor
Author(s): Akira Kimachi; Shigeru Ando
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Paper Abstract

This paper proposes a real-time phase-stamp range finder (PSRF) using a three-phase correlation image sensor (3PCIS). The system onsists of the same components as in the conventional light-stripe ange finder except the 3PCIS and a three-phase reference signal enerator. During a single scan of the sheet beam, the 3PCIS "stamps" the phase of the reference signals at the moment the light stripe is imaged on each pixel. The three-dimensional shape of the object is obtained in real time by converting the detected phase to the angle of the projected sheet beam. Compared to time-stamp VLSI range finders, the proposed PSRF is not affected by spatial nonuniformity in surface reflectance of the object and background illumination. It can be realized with a simpler architecture than the modulation-type PSRF previously proposed by the authors. Experimental results on a developed PSRF system are demonstrated.

Paper Details

Date Published: 29 January 2007
PDF: 8 pages
Proc. SPIE 6491, Videometrics IX, 64910A (29 January 2007); doi: 10.1117/12.696311
Show Author Affiliations
Akira Kimachi, Osaka Electro-Communication Univ. (Japan)
Shigeru Ando, The Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 6491:
Videometrics IX
J.-Angelo Beraldin; Fabio Remondino; Mark R. Shortis, Editor(s)

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