Bi-prediction coding method and apparatus, bi-prediction decoding method and apparatus, and recording medium

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United States of America

PATENT NO 12256065
APP PUB NO 20240098251A1
SERIAL NO

18515819

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Abstract

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An image decoding method and an image decoding apparatus is provided. The method comprises recovering a first motion vector corresponding to a first decoding reference picture based on the entropy decoded bit stream, calculating a second motion vector corresponding to a second decoding reference picture by scaling the first motion vector based on a first temporal distance between the current picture and the first decoding reference picture and a second temporal distance between the current picture and the second decoding reference picture, generating a prediction block relating to a current block in the current picture, based on the calculated second motion vector, generating a residual block relating to the current block through a residual data decoding process based on the entropy decoded bit stream, and recovering the current block based on the prediction block and the residual block.

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Patent Owner(s)

  • SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATE COLLABORATION OF KOREA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jeon, Byeung Woo Seongnam-si, KR 73 351
Jung, Bong Soo Seoul, KR 9 33
Won, Kwang Hyun Bucheon-si, KR 29 171

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