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Patent Searching and Data


Title:
IMAGE DECODING METHOD, IMAGE ENCODING METHOD, IMAGE DECODING DEVICE, IMAGE ENCODING DEVICE, AND IMAGE ENCODING/DECODING DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/001770
Kind Code:
A1
Abstract:
 An image decoding method according to one embodiment of the present invention comprises a context control step (S204) in which a context to be used for a block to be processed is determined from a plurality of contexts. In the context control step (S204), if the signal classification of a control parameter is a second type, the context is determined using a condition whereby the control parameter of an upper block is not employed (S207). The second type is: "merge_flag"; "ref_idx_l0" or "ref_idx_l1"; "inter_pred_flag"; "mvd_l0" or "mvd_l1"; "no_residual_data_flag"; "intra_chroma_pred_mode"; and "cbf_luma", "cbf_cb", or "cbf_cr".

Inventors:
SASAI HISAO
NISHI TAKAHIRO
SHIBAHARA YOUJI
SUGIO TOSHIYASU
TANIKAWA KYOKO
MATSUNOBU TORU
Application Number:
PCT/JP2012/004068
Publication Date:
January 03, 2013
Filing Date:
June 22, 2012
Export Citation:
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Assignee:
PANASONIC CORP (JP)
SASAI HISAO
NISHI TAKAHIRO
SHIBAHARA YOUJI
SUGIO TOSHIYASU
TANIKAWA KYOKO
MATSUNOBU TORU
International Classes:
H04N7/26
Other References:
THOMAS WIEGAND: "Joint Final Committee Draft (JFCD) of Joint Video Specification (ITU-T Rec. H.264 I ISO/IEC 14496-10 AVC)", JOINT VIDEO TEAM (JVT) OF ISO/IEC MPEG AND ITU-T VCEG 4TH MEETING, 22 July 2002 (2002-07-22) - 26 July 2002 (2002-07-26), KLAGENFURT, AUSTRIA, XP055128559
DETLEV MARPE: "Context-Based Adaptive Binary Arithmetic Coding in the H.264/AVC Video Compression Standard", IEEE TRANSACTION ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, vol. 13, no. 7, July 2003 (2003-07-01)
"Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11", WD3: WORKING DRAFT 3 OF HIGH-EFFICIENCY VIDEO CODING, 16 March 2011 (2011-03-16), Retrieved from the Internet
"Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11", COMMON TEST CONDITIONS AND SOFTWARE REFERENCE CONFIGURATIONS, 20 January 2011 (2011-01-20)
GISLE BJONTEGAARD: "Improvements of the BD-PSNR model", ITU-T SG16 Q.6 DOCUMENT, VCEG-AI11, July 2008 (2008-07-01)
See also references of EP 2728869A4
Attorney, Agent or Firm:
NII, Hiromori (JP)
New house Extensive 守 (JP)
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Claims: