Title:
An encoding method, its device, its decoding method, and its device of motion information
Document Type and Number:
Japanese Patent JP6050531
Kind Code:
B2
Abstract:
Provided is a method of decoding a motion vector, the method comprising: obtaining a flag indicating whether a prediction mode of a current prediction unit is a merge mode which uses a motion vector included in merge motion vector candidates; when the flag indicates that the prediction mode of the current prediction unit is the merge mode, obtaining merge motion vector candidates by using a motion vector of prediction unit that is temporally related to the current prediction unit and motion vectors of prediction units that are spatially related to the current prediction unit; adding, when the number of motion vectors included in the merge motion vector candidates is smaller than a predetermined number n, zero vector having zero value as components value to the merge motion vector candidates so that the number of motion vectors included in the merge motion vector candidates reaches the predetermined number n; obtaining an index indicating one motion vector from among the n motion vectors included in the merge motion vector candidates from a bitstream; and obtaining a motion vector of the current prediction unit by using the obtained index, wherein the motion vectors of prediction units that are spatially related to the current prediction unit are scanned according to predetermined order, if value of a first motion vector is equal to value of a second motion vector, the second motion vector is removed from the merge motion vector candidates,wherein the predetermined number n is determined based on an information regarding the predetermined number n, the information being included in at least one of a sequence parameter set (SPS), a picture parameter set (PPS), and a slice header.
Inventors:
Lee, Temy
Chen, Jian Lu
Chen, Jian Lu
Application Number:
JP2016025266A
Publication Date:
December 21, 2016
Filing Date:
February 12, 2016
Export Citation:
Assignee:
Samsung Electronics Company Limited
International Classes:
H04N19/52; H04N19/105; H04N19/147; H04N19/176
Foreign References:
| WO2012164924A1 | ||||
| WO2012164906A1 | ||||
| WO2012164880A1 | ||||
| WO2012160803A1 | ||||
| WO2012140821A1 | ||||
| WO2012128540A2 |
Other References:
Guillaume LAROCHE et al.,Robust solution for the AMVP parsing issue,Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11,5th Meeting: Geneva, CH,2011年 3月,JCTVC-E219_r5,pp.1-10
Jianle Chen and Tammy Lee,MVP index parsing with fixed number of candidates,Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11,6th Meeting: Torino, IT,2011年 7月,JCTVC-F402_r1,pp.1-17
Toshiyasu Sugio and Takahiro Nishi,Parsing Robustness for Merge/AMVP,Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11,6th Meeting: Torino, IT,2011年 7月,JCTVC-F470_r4,pp.1-15
Jianle Chen and Tammy Lee,MVP index parsing with fixed number of candidates,Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11,6th Meeting: Torino, IT,2011年 7月,JCTVC-F402_r1,pp.1-17
Toshiyasu Sugio and Takahiro Nishi,Parsing Robustness for Merge/AMVP,Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11,6th Meeting: Torino, IT,2011年 7月,JCTVC-F470_r4,pp.1-15
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Shinsuke Onuki
Tadahiko Ito
Shinsuke Onuki
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