Electronics and Telecommunications Research Institute

Sejong University

Industry-University Cooperation Foundation Korea Aerospace University

Chips&media,inc

Ji Yeon Jung

Hui Yong Kim

Sung Chang Lim

Jin Ho Lee

Ha Hyun Lee

Jung Won Kang

Yung Lyul Lee

Nam Uk Kim

Myung Jun Kim

Yang Woo Kim

Dae Yeon Kim

Jae Gon Kim

Do Hyeon Park

Disclosed herein is a method of decoding an image. The method includes generating an inter prediction block by performing inter prediction with respect to a current block, generating an intra prediction block by performing intra prediction with respect to the current block, determining a first weight and a second weight, and generating a final prediction block by respectively applying the first weight and the second weight to the inter prediction block and the intra prediction block. The generating of the intra prediction block includes generating the intra prediction block using a predefined intra prediction mode.

Image encoding/decoding method and device, and recording medium in which bitstream is stored

An image encoding/decoding method is provided. An image decoding method of the present invention may comprise deriving an intra-prediction mode of a current luma block, deriving an intra-prediction mode of a current chroma block based on the intra-prediction mode of the current luma block, generating a prediction block of the current chroma block based on the intra-prediction mode of the current chroma block, and the deriving of an intra-prediction mode of a current chroma block may comprise determining whether or not CCLM (Cross-Component Linear Mode) can be performed for the current chroma block.

Video encoding/decoding method, apparatus, and recording medium having bitstream stored thereon

An image encoding/decoding method is provided. An image decoding method of the present invention may comprise restoring an intra-prediction mode of a current chroma block, deriving at least one representative value based on a neighboring sample of the current chroma block and a neighboring sample of a corresponding luma block corresponding to the current chroma block in case the intra-prediction mode is a CCLM (Cross-Component Linear Model) mode, deriving a parameter of CCLM by using the at least one representative value, and generating a prediction block of the current chroma block by using the parameter of CCLM.

Image encoding/decoding method and apparatus, and recording medium storing bitstream

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Seoul, South Korea

Ji Yeon Jung