The invention described herein was made by an employee of the National Aeronautics and Space Administration and it may be manufactured and used by and for the United States Government for governmental purposes without the payment of royalties thereon or therefore.
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4386366 | Mori | May 1983 | |
4776030 | Tzou | Oct 1988 | |
4780761 | Daly et al. | Oct 1988 | |
4783841 | Crayson | Nov 1988 | |
4831636 | Taniguchi et al. | May 1989 | |
4920426 | Hatori et al. | Apr 1990 | |
5101280 | Moronaga et al. | May 1992 | |
5121216 | Chen et al. | Jun 1992 | |
5170264 | Saito et al. | Dec 1992 |
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"Luminance-Model-Based DCT Quantization for Color Image Compression" of A. J. Ahumada et al, published in 1992 in Human Vision, Visual Processing, and Digital Display III Proc. SPIE 1666, paper 32. |
"An Improved Detection Model for DCT Coefficient Quantization" of H. A. Peterson et al, published in 1993 in Human Vision, Visual Processing and Digital Display VI SPIE vol. 1913, pp. 191-201. |
"DCT Quantization Matrices Visually Optimized for Individual Images" of A. B. Watson, published no earlier than Feb. 1993 in Human Vision, Visual Processing and Digital IV, Proc. 1913-14. |