Self-contained integrated color processing imager
First Claim
1. A color-based visual sensor, comprising means for sensing component colors of light in a scene and providing image data in accordance with an arbitrary color space, means for defining opponencies in said color space, means for transforming said image data in accordance with said opponencies to provide transformed image data, means for dividing said transformed image data into families and sub-families in accordance with respective opponencies and combinations of opponencies, respectively, and dividing said families and subfamilies in accordance with variation of said transformed image data corresponding to respective opponencies to produce divided transformed image data, means for region of interest selection, means for analyzing said divided transformed image data over said region of interest to develop a color signature, and means for matching said color signature with a template.
1 Assignment
0 Petitions
Accused Products
Abstract
An imaging array is integrated with region of interest selection, template storage and processing circuitry for transforming raw image data for respective pixels in terms of defined color opponencies and analyzing (e.g. by histogramming or the like) the transformed image data over respective regions of interest of arbitrary size to extract color signatures of portions of a scene. The color signatures may then be compared to templates for object recognition, tracking or other purposes.
26 Citations
12 Claims
-
1. A color-based visual sensor, comprising
means for sensing component colors of light in a scene and providing image data in accordance with an arbitrary color space, means for defining opponencies in said color space, means for transforming said image data in accordance with said opponencies to provide transformed image data, means for dividing said transformed image data into families and sub-families in accordance with respective opponencies and combinations of opponencies, respectively, and dividing said families and subfamilies in accordance with variation of said transformed image data corresponding to respective opponencies to produce divided transformed image data, means for region of interest selection, means for analyzing said divided transformed image data over said region of interest to develop a color signature, and means for matching said color signature with a template.
Specification