Title:
符号化・復号化装置
Document Type and Number:
Japanese Patent JP5805281
Kind Code:
B2
Abstract:
An image coding method for improving coding efficiency by using more appropriate probability information is provided. The image coding method includes: a first coding step of coding a first set of blocks included in a first region sequentially based on first probability information; and a second coding step of coding a second set of blocks included in a second region sequentially based on second probability information. In the first coding step, the first probability information is updated depending on data of a target block to be coded, after coding the target block and before coding a next target block. In the second coding step, the second probability information is updated depending on the first probability information updated in the first coding step, before coding the first target block.
Inventors:
Ken Tanaka
Toshio Sasai
Toshio Sasai
Application Number:
JP2014161939A
Publication Date:
November 04, 2015
Filing Date:
August 07, 2014
Export Citation:
Assignee:
Panasonic Intellectual Property Corporation of America
International Classes:
H04N19/13; H04N19/167; H04N19/174; H04N19/91
Domestic Patent References:
| JP2008011204A | ||||
| JP2005347780A | ||||
| JP2004007382A |
Foreign References:
| WO2009119888A1 | ||||
| WO2007129433A1 | ||||
| WO2003043346A1 | ||||
| WO2003043345A1 |
Other References:
Vivienne Sze et al.,Massively Parallel CABAC,ITU - Telecommunications Standardization Sector STUDY GROUP 16 Question 6 Video Coding Experts Group,38th Meeting: London, UK / Geneva, CH,2009年 7月,VCEG-AL21,pp.1-10
Xun Guo et al.,Ordered Entropy Slices for Parallel CABAC,Ordered Entropy Slices for Parallel CABAC,ITU - Telecommunications Standardization Sector STUDY GRO,37th Meeting: Yokohama, Japan,2009年 4月,VCEG-AK25_r1,pp.1-8
Jie Zhao and Andrew Segall,New Results using Entropy Slices for Parallel Decoding,ITU - Telecommunications Standardization Sector STUDY GROUP 16 Question 6 Video Coding Experts Group,35th Meeting: Berlin, Germany,2008年 7月,VCEG-AI32,pp.1-9
Xun Guo et al.,Ordered Entropy Slices for Parallel CABAC,Ordered Entropy Slices for Parallel CABAC,ITU - Telecommunications Standardization Sector STUDY GRO,37th Meeting: Yokohama, Japan,2009年 4月,VCEG-AK25_r1,pp.1-8
Jie Zhao and Andrew Segall,New Results using Entropy Slices for Parallel Decoding,ITU - Telecommunications Standardization Sector STUDY GROUP 16 Question 6 Video Coding Experts Group,35th Meeting: Berlin, Germany,2008年 7月,VCEG-AI32,pp.1-9
Attorney, Agent or Firm:
Hiromori Arai