期刊
JOURNAL OF MATHEMATICAL IMAGING AND VISION
卷 40, 期 3, 页码 269-284出版社
SPRINGER
DOI: 10.1007/s10851-011-0262-6
关键词
Color monogenic signal; Analytic and monogenic signal; Clifford algebras; Color segmentation; Color optical flow
类别
资金
- ONR [N00014-09-1-0493]
- Region Poitou-Charente
The aim of this paper is to define an extension of the analytic signal for a color image. We generalize the construction of the so-called monogenic signal to mappings with values in the vectorial part of the Clifford algebra R-5,R-0. Solving a Dirac equation in this context leads to a multiscale signal (relatively to the Poisson scale-space) which contains both structure and color information. The color monogenic signal can be used in a wide range of applications. Two examples are detailed: the first one concerns a multiscale geometric segmentation with respect to a given color; the second one is devoted to the extraction of the optical flow from moving objects of a given color.
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