System for and method of sharpness enhancement for coded...

Details System for and method of sharpness enhancement for coded... System for and method of sharpness enhancement for coded...

2006-04-18

2006-04-18

Vo, Tung (Department: 2613)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

Reexamination Certificate

active

07031388

ABSTRACT:
A method and system for calculating a UME for each pixel in a frame of video data. A system for enhancing sharpness of a coded digital video signal representative a frame of block-based data is provided, comprising: a system for calculating a UME of each pixel in the frame in accordance with a frame type, wherein the calculating system includes: a mechanism that defines local spatial features in the frame; a mechanism that analyzes block-based motion estimation for the frame; a mechanism that detects a scene change in the frame; and a sharpness enhancer that improves sharpness to a decoded version of the digital video signal based on said UME.

REFERENCES:
patent: 5844614 (1998-12-01), Chong et al.
patent: 6466624 (2002-10-01), Fogg
patent: 6674799 (2004-01-01), Rhee
patent: 6862372 (2005-03-01), Yang et al.
patent: 6873657 (2005-03-01), Yang et al.
patent: 6950561 (2005-09-01), Boroczky et al.

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