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Proceedings Paper

Complex sinusoidally modulated imaging for real-time pixel-wise optical flow detection
Author(s): D. Wei; P. Masurel; T. Kurihara; S. Ando
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Paper Abstract

In this paper,we study optical flow determination with Complex Sinusoidally Modulated Imaging (CSMI) using a novel imaging device, the correlation image sensor (CIS). The proposed method is based on a newly obtained relation what we call the optical flow identity (OFI) between intensity image and complex inusoidally-modulated image captured simultaneously by the CIS. This equation is complex-valued and the optical flow is a 2-dimensional vector for each pixel. Therefore, it is possible to compute the optical flow from one pixel value and its spatial gradient. Since the OFI does not involve time derivative, information on a single frame is sufficient. Moreover, the velocity limitation due to the spatio-temporal aliasing and approximate frame differentials used in conventionalt methods is avoided.

Paper Details

Date Published: 27 February 2007
PDF: 11 pages
Proc. SPIE 6497, Image Processing: Algorithms and Systems V, 64970D (27 February 2007); doi: 10.1117/12.704174
Show Author Affiliations
D. Wei, The Univ. of Tokyo (Japan)
P. Masurel, The Univ. of Tokyo (Japan)
T. Kurihara, The Univ. of Tokyo (Japan)
S. Ando, The Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 6497:
Image Processing: Algorithms and Systems V
Jaakko T. Astola; Karen O. Egiazarian; Edward R. Dougherty, Editor(s)

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