Title:
映像復号化装置、映像符号化装置およびビットストリームの送信方法
Document Type and Number:
Japanese Patent JP6783355
Kind Code:
B2
Abstract:
The present invention relates to image processing, and more particularly, to a video coding/decoding method using a clipped motion vector and an apparatus thereof.An embodiment of the present invention relates to a method of decoding an image. The method includes clipping a motion vector of a reference picture in a predetermined dynamic range to generate a clipped motion vector, storing the clipped motion vector in a buffer, deriving a motion vector of a coding treeblock using the motion vector stored in the buffer, and performing inter prediction decoding process using the motion vector of the coding treeblock.According to the exemplary embodiment of the present invention, a size of a memory required for storing motion vectors may be reduced.
Inventors:
Rim, Song, Chang
Kim, Phy, Yeon
John, Se, Yun
Cho, Suku, Hee
John, Don, Sun
Kim, John, Ho
Lee, Ha, Hyun
Lee, Jin, Ho
Choi, Jin, Sue
Kim, Jin, Eun
Kim, Phy, Yeon
John, Se, Yun
Cho, Suku, Hee
John, Don, Sun
Kim, John, Ho
Lee, Ha, Hyun
Lee, Jin, Ho
Choi, Jin, Sue
Kim, Jin, Eun
Application Number:
JP2019122135A
Publication Date:
November 11, 2020
Filing Date:
June 28, 2019
Export Citation:
Assignee:
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
International Classes:
H04N19/426; H04N19/51; H04N19/52; H04N19/513
Domestic Patent References:
| JP6550429B2 |
Other References:
Sung-Chang Lim et al.,Dynamic range restriction of temporal motion vector,Joint Collaborative Team on Video Coding (JCT-VC),2011年 3月17日,[JCTVC-E142] (version 3)
Seungwook Park et al.,Modifications of temporal mv memory compression and temporal mv predictor,Joint Collaborative Team on Video Coding (JCT-VC),2011年 3月19日,[JCTVC-E059] (version 4)
Thomas Wiegand et al.,WD2: Working Draft 2 of High-Efficiency Video Coding,Joint Collaborative Team on Video Coding (JCT-VC),2011年 4月15日,[JCTVC-D503] (version 2)
Seungwook Park et al.,Modifications of temporal mv memory compression and temporal mv predictor,Joint Collaborative Team on Video Coding (JCT-VC),2011年 3月19日,[JCTVC-E059] (version 4)
Thomas Wiegand et al.,WD2: Working Draft 2 of High-Efficiency Video Coding,Joint Collaborative Team on Video Coding (JCT-VC),2011年 4月15日,[JCTVC-D503] (version 2)
Attorney, Agent or Firm:
Hiroyuki Nagai
Yukitaka Nakamura
Satoru Asakura
Masashi Yoshida
Yukitaka Nakamura
Satoru Asakura
Masashi Yoshida