基本信息:
- 专利标题: 画像予測の方法および装置、ならびにコーデック
- 申请号:JP2020536667 申请日:2018-12-27
- 公开(公告)号:JP2021508213A 公开(公告)日:2021-02-25
- 发明人: ▲馬▼ 祥 , ▲楊▼ ▲海▼涛 , ▲陳▼ ▲煥▼浜 , 高 山
- 申请人: 華為技術有限公司 , HUAWEI TECHNOLOGIES CO.,LTD.
- 申请人地址: 中華人民共和国 518129 広東省深▲チェン▼市龍崗区坂田 華為総部▲ベン▼公楼
- 专利权人: 華為技術有限公司,HUAWEI TECHNOLOGIES CO.,LTD.
- 当前专利权人: 華為技術有限公司,HUAWEI TECHNOLOGIES CO.,LTD.
- 当前专利权人地址: 中華人民共和国 518129 広東省深▲チェン▼市龍崗区坂田 華為総部▲ベン▼公楼
- 代理人: 実広 信哉; 野村 進
- 优先权: CN201711494274.0 2017-12-31
- 国际申请: CN2018124275 JP 2018-12-27
- 国际公布: WO2019129130 JP 2019-07-04
- 主分类号: H04N19/56
- IPC分类号: H04N19/56 ; H04N19/533 ; H04N19/577
This application provides a picture prediction method and apparatus, and a codec. The method includes: obtaining initial motion information of a current picture block; determining positions of N forward reference blocks and positions of N backward reference blocks based on the initial motion information and a position of the current picture block; determining, from positions of M pairs of reference blocks based on a matching cost criterion, that positions of a pair of reference blocks are a position of a target forward reference block of the current picture block and a position of a target backward reference block of the current picture block, where positions of each pair of reference blocks include a position of a forward reference block and a position of a backward reference block; and for the positions of each pair of reference blocks, a first position offset and a second position offset are in a mirror relationship; and obtaining a predicted value of a pixel value of the current picture block based on a pixel value of the target forward reference block and a pixel value of the target backward reference block. This application can improve picture prediction accuracy and reduce picture prediction complexity.
信息查询:
EspacenetIPC结构图谱:
H | 电学 |
--H04 | 电通信技术 |
----H04N | 图像通信,例如电视 |
------H04N19/00 | 用于数字视频信号编码,解码,压缩或解压缩的方法或装置 |
--------H04N19/50 | .使用预测编码 |
----------H04N19/503 | ..涉及时间预测 |
------------H04N19/51 | ...运动估计或补偿 |
--------------H04N19/56 | ....具有矢量搜索初始化的运动估计,例如估计一个好的候选来初始化搜索 |