白丝美女被狂躁免费视频网站,500av导航大全精品,yw.193.cnc爆乳尤物未满,97se亚洲综合色区,аⅴ天堂中文在线网官网

Encoding method and device, and decoding method and device

專利號
US12160575B2
公開日期
2024-12-03
申請人
SAMSUNG ELECTRONICS CO., LTD.（KR Suwon-si）
發(fā)明人
Anish Tamse; Yin-ji Piao; Jin-Young Lee
IPC分類
H04N19/00; H04N19/119; H04N19/129; H04N19/139; H04N19/176
技術(shù)領(lǐng)域
coding,affine,split,unit,decoding,block,splitting,units,current,encoding
地域： Suwon-si

摘要

Provided is a video decoding method including: obtaining affine parameter group candidates of a current block based on whether adjacent blocks of the current block are decoded; determining an affine parameter group of the current block from among the affine parameter group candidates, according to affine parameter information of the current block; and reconstructing the current block, based on one or more affine parameters included in the affine parameter group.

說明書

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No. 16/648,546, filed on Mar. 18, 2020, now U.S. Pat. No. 11,363,267, which is a National Stage Application of International Application No. PCT/KR2018/011561, filed on Sep. 28, 2018, and which claims benefit of priority to U.S. Patent Application No. 62/564,697, filed on Sep. 28, 2017, the disclosures of which are incorporated herein in their entireties by reference.

TECHNICAL FIELD

The present disclosure relates to a video encoding method and decoding method, and more particularly, to an inter prediction method for image encoding/decoding methods and apparatuses.

BACKGROUND ART

A high quality video requires a large amount of data during encoding. However, a bandwidth allowed for transmitting video data is limited, and thus a data rate applied during video data transmission may be limited. Accordingly, for efficient transmission of the video data, there is a need for an encoding and decoding method of the video data, which minimizes deterioration of image quality while increasing a compression ratio.

The video data may be compressed by removing spatial redundancy and temporal redundancy between pixels. Because it is general for adjacent pixels to have a common feature, encoding information is transmitted in data units of pixels to remove redundancy between the adjacent pixels.

權(quán)利要求

1
The invention claimed is:1. A non-transitory computer-readable storage medium storing a bitstream generated by a video encoding method, the bitstream comprising:affine mode information for a current block indicating whether inter prediction of the current block is performed in an affine inter mode or an affine merge mode,wherein:affine parameter group candidates of the current block is determined based on whether adjacent blocks of the current block are decoded,an affine parameter group is determined for predicting the current block,affine parameter information of the current block is determined to indicate the affine parameter group of the current block,the affine parameter group candidates include a first affine parameter group candidate, a second affine parameter group candidate and a third affine parameter group candidate,the first affine parameter group candidate is determined based on a motion vector obtained from one or more adjacent blocks corresponding to a top-left point of the current block,the second affine parameter group candidate is determined based on a motion vector obtained from one or more adjacent blocks corresponding to a top-right point of the current block,the third affine parameter group candidate is determined based on a motion vector obtained from one or more adjacent blocks corresponding to a bottom-right point of the current block, andthe bitstream is output to include the affine mode information for the current block.2. A video decoding method, comprising:obtaining affine parameter group candidates of a current block based on whether adjacent blocks of the current block are decoded;determining an affine parameter group of the current block from among the affine parameter group candidates, according to affine parameter information of the current block; andreconstructing the current block, based on two or three affine parameters included in the affine parameter group,wherein the affine parameter group candidates include a first affine parameter group candidate, a second affine parameter group candidate and a third affine parameter group candidate,the first affine parameter group candidate is determined based on a motion vector obtained from one or more adjacent blocks corresponding to a top-left point of the current block,the second affine parameter group candidate is determined based on a motion vector obtained from one or more adjacent blocks corresponding to a top-right point of the current block, andthe third affine parameter group candidate is determined based on a motion vector obtained from one or more adjacent blocks corresponding to a bottom-right point of the current block.3. A video encoding method, comprising:determining affine parameter group candidates of a current block based on whether adjacent blocks of the current block are encoded;determining an affine parameter group for predicting the current block; anddetermining affine parameter information of the current block indicating the affine parameter group of the current block,wherein the affine parameter group candidates include a first affine parameter group candidate, a second affine parameter group candidate and a third affine parameter group candidate,the first affine parameter group candidate is determined based on a motion vector obtained from one or more adjacent blocks corresponding to a top-left point of the current block,the second affine parameter group candidate is determined based on a motion vector obtained from one or more adjacent blocks corresponding to a top-right point of the current block, andthe third affine parameter group candidate is determined based on a motion vector obtained from one or more adjacent blocks corresponding to a bottom-right point of the current block.
微信群二維碼
意見反饋