| ECVision indexed and annotated bibliography of cognitive computer vision publications This bibliography was created by Hilary Buxton and Benoit Gaillard, University of Sussex, as part of ECVision Specific Action 8-1 The complete text version of this BibTeX file is available here: ECVision_bibliography.bib
G. {McCabe, A., Caelli, T. West} and A. Reeves
ABSTRACT
In this paper we consider how to interpret, filter arid cross-correlate complex value color (hue-saturation) images using a single discrete Fourier transform: the spatiochromatic discrete Fourier transform (SCDFT). The model defines new types of spatio-chromatic orientated sinusoidal gratings, termed “rainbow-gratings”, which encode the variation of color over space. We demonstrate how color-opponent detectors observed within the vertebrate visual system can be easily defined by linear filters within this representation. This model also allows us to filter and detect both spatial and chromatic patterns ill images using a single cross-correlation procedure. In doing so, we explore a new form of the Cauchy-Schwarz inequality applied to complex-valued scalar products. Results demonstrate the power of this form of spatio-chromatic matched filtering in detecting signals embedded in such a significant amount of noise that they are riot visible to the unaided human eye. |
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