Computer graphics processing and selective visual display system – Computer graphics processing – Attributes
Reexamination Certificate
2006-04-18
2006-04-18
Bella, Matthew C. (Department: 2676)
Computer graphics processing and selective visual display system
Computer graphics processing
Attributes
C345S582000, C345S591000, C345S598000, C345S639000, C345S640000, C382S164000, C382S165000, C382S194000, C382S206000, C382S219000, C382S220000, C382S221000
Reexamination Certificate
active
07030885
ABSTRACT:
A method and apparatus for measuring a color-texture distance and a method and apparatus for sectioning an image into a plurality of regions using the measured color-texture distance are provided. The method of measuring a color-texture distance includes the steps of: assigning different degrees of importance to a brightness difference, a saturation difference, and a hue difference between two points in a color feature space constituted of color feature values of pixels in an image, and adding the brightness difference, the saturation difference, and the hue difference in proportion to the assigned degrees of importance to calculate a color distance between the two points; obtaining a texture distance between the two points using a difference between texture feature values of the two points and weighting coefficients applied to multi scales of a texture, in a texture feature space constituted of texture feature values for the pixels; and multiplying a color weight value and a texture weight value by the color distance and the texture distance, respectively, adding the multiplication results to each other, and obtaining the color-texture distance between the two points. The degrees of importance are determined on the basis that a hue is more important than a brightness or a saturation, a color becomes black as the brightness approaches an absolute value, and the hue has an arbitrary value as the saturation approaches the absolute value.
REFERENCES:
patent: 6463432 (2002-10-01), Murakawa
patent: 6674905 (2004-01-01), Matsugu et al.
patent: 6731792 (2004-05-01), Tanaka
patent: WO 00/46749 (2000-08-01), None
Pavel A. Chochia, “Two Tasks in Image Enhancement Technology”Optical Memory and Neural Networks, vol. 7, No. 1, 1998, pp. 37-50.
E. J. Carton, “Some Fundamental Texture Analysis Techniques” Univ of Maryland, Jan. 1974, pp. 27.
L. Van Gool, “Texture Analysis Anno” CVGIP 29, 1985, pp. 336-357.
G. M. Hunter, “Operation of Images Using Quad Trees”, IEEE Trans., vol. PAMI-1, No. 2, Apr. 1979, pp. 145-153.
A. Rosenfeld, “Quadtrees and Pyramids for Pattern Recognition and Image Analysis” Proceedings of 5thInt. Conference on Pattern Recognition, 1980, pp. 802-811.
Frese, Thomas, et al., “A Methodology for Designing Image Similarity Metrics Based On Human Visual System Models,” 3016 Proceedings of the SPIE pp. 472-483 (1997) Bellingham, Virginia.
Fairchild, Mark color appearance models pp. 219-222, Addison Wesley.
Chochia Pavel A.
Kim Chang-yeong
Kim Sang-kyun
Lee Seong-deok
Miller Boris M.
Bella Matthew C.
Buchanan & Ingersoll PC
Caschera Antonio
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