Layered coding and decoding of image data

Details Layered coding and decoding of image data Layered coding and decoding of image data

2006-03-28

2006-03-28

Le, Vu (Department: 2613)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

Reexamination Certificate

active

07020195

ABSTRACT:
An image processing system generates a base layer that represents a low-resolution portion of a source image. The image processing system also generates an enhancement layer that represents a high-resolution portion of the source image. The base layer has an associated aspect ratio and the enhancement layer has an associated aspect ratio that differs from the aspect ratio associated with the base layer. The aspect ratio associated with the base layer corresponds to an aspect ratio associated with low-resolution televisions. The aspect ratio associated with the enhancement layer corresponds to an aspect ratio associated with high-resolution televisions. The base layer can be generated by low-pass filtering the source image and the enhancement layer can be generated by high-pass filtering the source image. The base layer can also be generated by subtracting a portion of the base layer from a corresponding portion of the source image. An image decoding system is used to identify the base layer and the enhancement layer from a transport stream and recreate the source image.

REFERENCES:
patent: 4780760 (1988-10-01), Waldman et al.
patent: 5235420 (1993-08-01), Gharavi
patent: 5253058 (1993-10-01), Gharavi
patent: 5510787 (1996-04-01), Koster
patent: 5832124 (1998-11-01), Sato et al.
patent: 6025927 (2000-02-01), Honma
patent: 6061719 (2000-05-01), Bendinelli et al.
patent: 6148030 (2000-11-01), Katata et al.
patent: 6173013 (2001-01-01), Suzuki et al.
patent: 6317171 (2001-11-01), Dewald
patent: 6414991 (2002-07-01), Yagasaki et al.
patent: 6553072 (2003-04-01), Chiang et al.
patent: 2002/0021412 (2002-02-01), Goodhill et al.
patent: 2004/0150747 (2004-08-01), Sita
Morrison et al, Two-layer video coding for ATM networks, 1991, Elsevier Science Publishers, 179-195.

Affiliated with

Also associated with

Rating

Layered coding and decoding of image data does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Layered coding and decoding of image data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Layered coding and decoding of image data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3575129