Title:
INTRAFRAME PREDICTION METHOD AND APPARATUS, TERMINAL, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/253721
Kind Code:
A1
Abstract:
The present application is applicable to the technical field of video processing. Provided are an intraframe prediction method and apparatus, a terminal, and a storage medium. The method comprises: determining neighborhood pixel points of an image block; separately determining, from the neighborhood pixel points, a reference pixel point corresponding to each pixel point in the image block, wherein each pixel point in the image block and the reference pixel point corresponding to the pixel point are located on the same preset arc; and for each pixel point in the image block, determining the pixel value of the reference pixel point corresponding to the pixel point as the predicted value of the pixel point. According to the solution, the execution of intraframe prediction can be closer to a pixel point distribution condition in a 2D plane after a 360-degree video is projected, spatial redundancy in the 360-degree video is eliminated, the accuracy of the intraframe prediction is improved, and the final encoding performance of the 360-degree video is improved.
Inventors:
ZHANG YUN (CN)
ZHU LINWEI (CN)
LI NA (CN)
PI JINYONG (CN)
ZHU LINWEI (CN)
LI NA (CN)
PI JINYONG (CN)
Application Number:
PCT/CN2020/129553
Publication Date:
December 23, 2021
Filing Date:
November 17, 2020
Export Citation:
Assignee:
SHENZHEN INST OF ADV TECH CAS (CN)
International Classes:
H04N19/11; H04N19/105
Domestic Patent References:
| WO2018199792A1 | 2018-11-01 | |||
| WO2018199793A1 | 2018-11-01 |
Foreign References:
| CN111818333A | 2020-10-23 | |||
| CN111066322A | 2020-04-24 | |||
| CN109804633A | 2019-05-24 | |||
| CN101006730A | 2007-07-25 | |||
| EP1162830A2 | 2001-12-12 |
Attorney, Agent or Firm:
BEIJING ZHONG XUN TONG DA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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