In-loop noise reduction within an encoder framework

Details In-loop noise reduction within an encoder framework In-loop noise reduction within an encoder framework

2011-08-30

2011-08-30

Wong, Allen (Department: 2482)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240270, C375S240290

Reexamination Certificate

active

08009732

ABSTRACT:
An apparatus and method are described for filtering noise internally within a video encoding framework. In various embodiments of the invention, an in-loop noise filter is integrated within an encoding device or framework that reduces noise along a motion trajectory within a digital video signal. This integration of in-loop noise reduction allows both noise filtering parameters and encoding parameters to be more easily related and adjusted. The in-loop noise filter leverages characteristics of digital video encoding processes to reduce noise on a video signal and improve encoding efficiencies of a codec.

REFERENCES:
patent: 5253059 (1993-10-01), Ansari et al.
patent: 5327242 (1994-07-01), Naimpally et al.
patent: 5361105 (1994-11-01), Iu
patent: 5363213 (1994-11-01), Coward et al.
patent: 5490094 (1996-02-01), Heimburger et al.
patent: 5574512 (1996-11-01), Saeger
patent: 5875003 (1999-02-01), Kato et al.
patent: 5930397 (1999-07-01), Tsujii et al.
patent: 6037986 (2000-03-01), Zhang et al.
patent: 6269123 (2001-07-01), Fujishiro et al.
patent: 6347161 (2002-02-01), Mancuso
patent: 6356592 (2002-03-01), Naito
patent: 6456328 (2002-09-01), Okada
patent: 6657676 (2003-12-01), Borneo et al.
patent: 6819804 (2004-11-01), Tenze et al.
patent: 7173971 (2007-02-01), Amara et al.
patent: 2001/0005400 (2001-06-01), Tsujii et al.
patent: 2001/0019588 (2001-09-01), Naito et al.
patent: 2001/0035969 (2001-11-01), Kishimoto
patent: 2002/0054637 (2002-05-01), Kato
patent: 2002/0094130 (2002-07-01), Bruls et al.
patent: 2002/0101543 (2002-08-01), Ojo et al.
patent: 2002/0150166 (2002-10-01), Johnson
patent: 2002/0191858 (2002-12-01), Sindhu
patent: 2004/0001546 (2004-01-01), Tourapis et al.
patent: 2005/0074064 (2005-04-01), Lee et al.
patent: 2005/0175092 (2005-08-01), Puri et al.
patent: 2006/0008038 (2006-01-01), Song et al.
patent: 2006/0067405 (2006-03-01), Hormis et al.
“H.264—The New Video Codec,” (Clever Stuff BT Exact), IPR Overview: 42995 Issue: 1.1, Oct. 24, 2003.
Oten, R., et al., “Adaptive Alpha-Trimmed Mean Filters Under Deviations From Assumed Noise Model”, IEEE Transactions on Image Processing, vol. 13, No. 5, May 2004, pp. 627-639.
Cocchia, S., et al., “Design and Real-Time Implementation of a 3-D Rational Filter for Edge Preserving Smoothing”, IEEE Transactions on Consumer Electronics, vol. 43, No. 4, Nov. 1997, pp. 1291-1300.
Nuno Vasconcelos & Frederic Dufaux, “Pre and Post-Filtering for Low Bit-Rate Video Coding”, Image Processing, 1997, Proceedings, International Conference on Oct. 26-29, 1997, pp. 291-294.
Hideaki Kimata, et al., “Edge Preserving Pre-Post Filtering for Low Bitrate Video Coding”, Image Processing, 2001, Proceedings 2001 International Conference on Oct. 7-10, 2001, pp. 554-557.

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