Method and system for sharpness enhancement for coded video

Details Method and system for sharpness enhancement for coded video Method and system for sharpness enhancement for coded video

2005-09-27

2005-09-27

Patel, Kanjibhai (Department: 2625)

Image analysis

Image enhancement or restoration

Image filter

C382S275000

Reexamination Certificate

active

06950561

ABSTRACT:
A system, (i.e., a method, an apparatus, and computer-executable process steps), providing sharpness enhancement for coded video, in which a usefulness metric, calculates how much a pixel can be enhanced without increasing coding artifacts. The usefulness metric is separate from the enhancement algorithm such that a variety of different enhancement algorithms can be used in conjunction with the metric.

REFERENCES:
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patent: 6466624 (2002-10-01), Fogg
patent: 6580835 (2003-06-01), Gallagher et al.
patent: 6600839 (2003-07-01), Mancuso et al.
“A Compressed Video Enhancement Algorithm”, by Chun-Jen Tsai et al., Proceedings of IEEE ICIP 1999, Kobe Japan, Oct. 25-28, 1999.
“Improved Decoding of MPEG-2 Coded Video”, by B. Martins et al., Proceedings of IBC '2000, Amsterdam, The Netherlands, Sep. 7-12, 2000, pp. 109-115.

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