BI-PREDICTION CODING METHOD AND APPARATUS, BI-PREDICTION DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM

BI-PREDICTION CODING METHOD AND APPARATUS, BI-PREDICTION DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM

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 pic...

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Hauptverfasser: JUNG, Bong Soo, WON, Kwang Hyun, JEON, Byeung Woo
Format: Patent
Sprache:eng
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ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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creator JUNG, Bong Soo
WON, Kwang Hyun
JEON, Byeung Woo
description 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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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
title BI-PREDICTION CODING METHOD AND APPARATUS, BI-PREDICTION DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM
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