Image analysis – Image compression or coding – Adaptive coding
Reexamination Certificate
2005-04-05
2005-04-05
Patel, Kanjibhai (Department: 2625)
Image analysis
Image compression or coding
Adaptive coding
C382S243000, C382S236000, C382S239000, C375S240130
Reexamination Certificate
active
06876771
ABSTRACT:
In accordance with an embodiment, a method of encoding includes generating for each transform point a double difference coefficient (comprising the difference between a modeled difference coefficient and a raw difference coefficient) and encoding as an adaptive difference coefficient for each transform point either the double difference coefficient or the raw difference coefficient. Whether the double difference coefficient or the raw difference coefficient is selected to be the adaptive difference coefficient depends on which one provides more efficient coding. A method of decoding includes receiving the adaptive difference coefficients from the encoder, applying the same modeling and transform as the encoder to generate the modeled difference coefficients, generating corrective difference coefficients (from the adaptive difference coefficients and the modeled coefficients), and inverse transformation using the corrective difference coefficients. A system may include an encoder implementing the method of encoding and a decoder implementing the method of decoding.
REFERENCES:
patent: 5706220 (1998-01-01), Vafai et al.
patent: 6434196 (2002-08-01), Sethuraman et al.
patent: 20020131494 (2002-09-01), Fukuda et al.
patent: 0 921 685 (1999-09-01), None
patent: WO 0064167 (2000-10-01), None
patent: WO 0077735 (2000-12-01), None
PCT International Search Report; 3 pages; mailed Jan. 1, 2003.
Jens-Rainer Ohm, et al. “Digitale Bildcodierung” 1995, pp. 428-432, XP-002227549, New York.
Prakash Adityo
Ratner Edward
Bayat Ali
Okamoto & Benedicto LLP
Patel Kanjibhai
PTS Corporation
LandOfFree
Efficiently adaptive double pyramidal coding does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Efficiently adaptive double pyramidal coding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Efficiently adaptive double pyramidal coding will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3433437