Image analysis – Image compression or coding – Transform coding
Reexamination Certificate
2008-02-15
2010-10-12
Bali, Vikkram (Department: 2624)
Image analysis
Image compression or coding
Transform coding
C382S232000, C382S233000, C382S248000, C375S240200
Reexamination Certificate
active
07813574
ABSTRACT:
A method and apparatus is disclosed herein for decoding data (e.g., video data) using transforms. In one embodiment, the decoding process comprises scaling a block of coefficients using a scaling factor determined for each coefficient by computing an index for said each coefficient and indexing a look-up table (LUT) using the index. The index is based on a quantization parameter, a size of the block of coefficients, and a position of said each coefficient within the block. The method also comprises applying a transform to the block of scaled coefficients.
REFERENCES:
patent: 5129015 (1992-07-01), Allen et al.
patent: 5224062 (1993-06-01), McMillan, Jr. et al.
patent: 5519503 (1996-05-01), Ohki
patent: 6445829 (2002-09-01), Shyu
patent: 6574368 (2003-06-01), Boon et al.
patent: 6792149 (2004-09-01), Florencio
patent: 6882685 (2005-04-01), Malvar
patent: 7082450 (2006-07-01), Hallapuro et al.
patent: 7242713 (2007-07-01), Srinivasan et al.
patent: 7323421 (2008-01-01), Stinson et al.
patent: 2003/0187895 (2003-10-01), Hsiun et al.
patent: 2008/0137757 (2008-06-01), Bossen
patent: 2008/0137758 (2008-06-01), Bossen
patent: 04-282988 (1992-10-01), None
Wiegand, “Joint Committee Draft (CD)”, May 6-10, 2002, Joint Video Team of ISO/IEC MPEG and ITU-T VCEG, 3rd Meeting, pp. 1-132.
T. Wiegand, Joint Final Committee Draft (JFCD) of Joint Video Specification (ITU-T Rec. H.264 | ISO/IEC 14496-10 AVC), Joint Video Team(JVT) of ISO/IEC MPEG and ITU-VCEG, 4thMeeting: Klagenfurt, Austria, Jul. 22-26, 2002, 207 pages, JVT-D157.
Malwar, Henrique et al., “Low-Complexity Transform and Quantization with 16-Bit Arithmetic for H. 26L”, Proceedings 2002 International Conference on Image Processing, ICIP 2002, Rochester, New York, New York, Sep. 22-25, 2002, IEEE, US, vol. 2 of 3, Sep. 22, 2002, pp. 489-492.
Topiwala, Pankaj, “Status of the Emerging ITU-T/H.264/ISO/MPEG-4, Part 10 Video Coding Standard”, Proceeding of the SPIE, SPIE, Bellingham, VA, US, vol. 4790, Jul. 8, 2002, pp. 261-277.
Topiwala, Pankaj, “Overview and Performance Evaluation of the ITU-T Draft H.26L Video Coding Standard”, Proceeding of the SPIE, SPIE, Bellingham, VA, US, vol. 4472, Jul. 31, 2001, pp. 290-306.
PCT Search Report mailed Jan. 21, 2004, International Application No. PCT/US03/30476, 4 pages.
Office Action issued in related U.S. Appl. No. 10/670,698 dated Apr. 6, 2009, 58 pages.
Office Action issued in related U.S. Appl. No. 12/032,433 dated Apr. 7, 2009, 35 pages.
Office Action from co-pending U. S. Appl. No. 10/670,698, dated Oct. 23, 2009, 32 pages.
Office Action from co-pending U. S. Appl. No. 10/670,698, dated Apr. 17, 2008, 41 pages.
Office Action from co-pending U. S. Appl. No. 10/670,698, dated Nov. 19, 2008, 42 pages.
Office Action from co-pending U. S. Appl. No. 12/032,433, dated Sep. 2008, 25 pages.
Wiegand, Thomas, “Joint Committee Draft (CD)”, JVT-C167, US, Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG, May 10, 2002, pp. 116-122.
Office Action from counterpart Japanese Application No. 2004-540009, dated Feb. 16, 2010, 6 pages (with translation).
Notice of Allowance from co-pending U.S. Appl. No. 11/670,698, dated Mar. 15, 2010, 15 pages.
Notice of Allowance from counterpart Japanese Application No. 2004-540009, dated May 11, 2010, 3 pages (with translation).
Office Action from co-pending U.S. Appl. No. 12/578,187, dated Aug. 3, 2010, 11 pages.
Bali Vikkram
Brinks Hofer Gilson & Lione
NTT DoCoMo Inc.
Zeilberger Daniel
LandOfFree
Low complexity and unified transforms for video 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 Low complexity and unified transforms for video coding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low complexity and unified transforms for video coding will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4167586