Video decoding method and apparatus
By dividing the transform block into multiple sub-blocks and using an index transformation mechanism with different scanning orders, and utilizing multiple buffers to store the residual information of the decoded positions, the problems of large storage space and low decoding efficiency in the VVC standard are solved, achieving more efficient video decoding.
CN122293871APending Publication Date: 2026-06-26MONTAGE TECH CHENGDU CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- MONTAGE TECH CHENGDU CO LTD
- Filing Date
- 2024-12-25
- Publication Date
- 2026-06-26
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Figure CN122293871A_ABST
Abstract
This application discloses a video decoding method and apparatus. The method includes: converting a first block index of at least one decoding position in a transform block under a first scanning order to a second block index under a second scanning order, wherein the second scanning order is different from the first scanning order; performing residual decoding on a plurality of sub-blocks of the transform block according to the first scanning order; wherein the step of performing residual decoding on each sub-block includes: performing residual decoding on the residual information of each decoding position in the currently decoded sub-block according to the first scanning order based on the residual information of the decoded positions that have been decoded in the transform block stored in a plurality of preset buffers; and updating the residual information of the decoded positions stored in the plurality of buffers according to the residual information of at least a portion of the decoded positions.
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