Computer graphics processing and selective visual display system – Computer graphic processing system – Plural graphics processors
Reexamination Certificate
2005-09-06
2005-09-06
Chauhan, Ulka J. (Department: 2676)
Computer graphics processing and selective visual display system
Computer graphic processing system
Plural graphics processors
C345S582000, C345S531000, C345S552000, C345S555000, C345S587000, C382S232000, C382S233000
Reexamination Certificate
active
06940511
ABSTRACT:
A pixel is textured by storing a first texel reference value, a second texel reference value, and texel mapping values where each texel mapping value represents a k-tuple of (ternary) references to the first texel reference value, the second texel reference value and a third texel reference value to thereby represent a block of texels. A pixel value for the pixel is generated from the stored texel values and the pixel is displayed responsive to the generated pixel value. In some embodiments, respective pluralities of texel reference values and texel mapping values that map thereto are stored for respective ones of a plurality of overlapping blocks of texels. In further embodiments, a first mipmap value for a pixel is bilinearly interpolated from the retrieved texel values for the set of nearest neighbor texels. A second mipmap value for the pixel is generated by averaging the retrieved texel values for the set of nearest neighbor texels. A pixel value for the pixel is generated by interpolating between the first and second mipmap values. The present invention may be embodied as methods, apparatus and computer program products.
REFERENCES:
patent: 5920495 (1999-07-01), Hicok et al.
patent: 5956431 (1999-09-01), Iourcha et al.
patent: 6016152 (2000-01-01), Dickie
patent: 6181347 (2001-01-01), Devic et al.
patent: 6184893 (2001-02-01), Devic et al.
patent: 6236405 (2001-05-01), Schilling et al.
patent: 6259460 (2001-07-01), Gossett et al.
patent: 6292193 (2001-09-01), Perry et al.
patent: 6304268 (2001-10-01), Iourcha et al.
patent: 6366290 (2002-04-01), Dye et al.
patent: 6459433 (2002-10-01), Walton
patent: 2002/0122043 (2002-09-01), Freeman et al.
patent: 1 517 383 (1978-07-01), None
patent: 09-044695 (1997-02-01), None
patent: 2000-155851 (2000-06-01), None
patent: WO 99/22519 (1999-05-01), None
patent: WO 99/67748 (1999-12-01), None
Akenine-Moller, T., et al. Graphics for the Masses: A Hardware Rasterization Architecture for Mobile Phones. ACM Transaction of Graphics. Jul. 2003. p. 801-808.
Levkovich-Maslyuk, L., et al. Texture Compression With adaptive Block Partitions. Proceedings of the 8th ACM International Conference on Multimedia. Oct. 2000. p. 401-403.
Woo, R., et al. A 80/20MHz Multimedia Processor Integrated With Embedded DRAM MPEG-4 Accelerator and 3D Rendering Engine for Mobile Applications. ISSCC 2001, Session 9, Integrated Multimedia Processors, p. 142-143.
Cross, Jason, “DXTn Texture Compression,” http://www.cdmag.com/articles/021/068/dxt.feature.html, 1999, 4 pages.
Tseng, Jeffrey, “The Truth About S3TC,” http://www.hardwarecentral.com/hardwarecentral/print/140/1, May 29, 1999, 5 pages.
McCabe et al., “DirectX 6 Texture Map Compression,” Game Developer, Aug. 1998, 4 pages.
Williams, Lance, “Pyramidal Parametrics,” Computer Graphics, vol. 7, No. 3, Jul. 1983, pp. 65-75.
Ivanov et al., “Color Distribution—a new approach to texture compression,” Computer Graphics Forum, Amsterdam, NL, vol. 19, No. 3, Aug. 21, 2000, pp. C283-C289, C535.
Delp et al., “Image Compression Using Block Truncation Coding,” IEEE Transactions on Communications, IEEE Inc., New York, US, vol. COM-27, No. 9, Sep. 1979, pp. 1335-1342.
Standard Search Report, U.S. Appl. No. 10/326,849, filed Dec. 20, 2002, May 23, 2003.
Möller et al., “Real-Time Rendering,” 2ndedition, Chapter 5 Texturing, Jun. 2002, pp. 117-145.
Beers et al., “Rendering from Compressed Textures,” Computer Graphics (SIGGRAPH 96 Proceedings), Aug. 1996, 4 pages.
Uwe Behrens, “Averaged Area Tables for Texture Filtering,” SIGGRAPH 2001 Conference Abstracts and Applications, 2001, p. 150.
Franklin C. Crow, “Summed-Area Tables for Texture Mapping,” Computer Graphics (SIGGRAPH '84 Proceedings), Jul. 1974, pp. 207-212.
Zavacky et al., “Resampling of an Image By Block-Based Interpolation or Decimation with Compensation,” Radioengineering, Prague, CZ, vol. 9, No. 2, Jun. 2000, pp. 18-24.
International Search Report, PCT/EP03/05747, Sep. 29, 2003.
Akenine-Möller Tomas
Ström Jacob
Chauhan Ulka J.
Myers Bigel & Sibley & Sajovec
Telefonaktiebolaget L M Ericsson (Publ)
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