Registered
IMAGE ENCODING/DECODING METHOD AND DEVICE USING SECONDARY TRANSFORM, AND RECORDING MEDIUM STORING BITSTREAM
- Inventors
-
Sung-Chang Lim, Kang Jung Won, Lee Hahyun, Jinho Lee, Kim Hui Yong, Choi Jin Soo
- Application No.
-
17616581 (2020.06.18)
- Publication No.
-
20220264151 (2022.08.18)
- Registration No.
- 12022119 (2024.06.25)
- Country
- UNITED STATES
- Project Code
-
19HR2300, Development and Standardization of 5th Generation Video/Audio Coding Technology for Ultra Gifh Quality Media Services,
Kang Jung Won
- Abstract
- Disclosed herein is a video decoding method including: obtaining a transform skip mode flag indicating whether or not a transform skip mode is applied to a current block; based on the transform skip mode flag, when a transform skip mode is applied to the current block, determining that secondary transform/inverse transform is not applied to the current block; and, according to the transform skip mode flag, when a transform skip mode is not applied to the current block, obtaining a transform matrix index for secondary transform/inverse transform of the current block and, according to the transform matrix index, determining whether or not secondary transform/inverse transform is applied to the current block.
- KSP Keywords
- Image Encoding, Recording medium, Skip mode, Transform skip mode, decoding method, inverse transform, transform matrix, transform skip, video decoding