Registered
IMAGE ENCODING/DECODING METHOD AND APPARATUS, AND RECORDING MEDIUM STORING BITSTREAM
- Inventors
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Sung-Chang Lim, Kang Jung Won, Lee Hahyun, Jinho Lee, Kim Hui Yong, Choi Jin Soo
- Application No.
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202080019220.2 (2020.03.06)
- Publication No.
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113545089 (2021.10.22)
- Registration No.
- ZL202080019220.2 (2024.07.02)
- Country
- CHINA
- Project Code
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19HR2300, Development and Standardization of 5th Generation Video/Audio Coding Technology for Ultra Gifh Quality Media Services,
Kang Jung Won
- Abstract
- The present invention relates to a method and an apparatus for transform-based image encoding/decoding. An image decoding method according to the present invention may comprise the steps of: determining a horizontal transform type and a vertical transform type of a current block; deriving a residual block of the current block by performing inverse transform of the current block on the basis of the determined horizontal transform type and vertical transform type; and reconstructing the current block on basis of the residual block, wherein the step of determining the horizontal transform type and the vertical transform type is performed on the basis of at least one of a horizontal size and a vertical size of the current block, regardless of an intra prediction mode of the current block, when the current block is in an intra sub-block partition (ISP) mode.
- KSP Keywords
- Image Encoding, Image decoding, Intra prediction, Prediction mode, decoding method, intra prediction mode, inverse transform
- Family
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