Method for decoding / encoding image and apparatus for transmitting compressed video data
By using multiple merge candidate lists and rearrange merge candidates in the video signal encoding/decoding process, the problem of low inter prediction efficiency is solved, efficient video signal processing is realized, and data transmission and storage costs are reduced.
CN119729010APending Publication Date: 2025-03-28KT CORP
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Patent Information
- Application Number
- CN202510035530.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2018-06-08
- Filing Date
- 2019-06-07
- Publication Date
- 2025-03-28
AI Technical Summary
Technical Problem
When encoding/decoding a video signal, it is difficult for the prior art to effectively perform inter prediction, especially when processing high resolution and high quality images, resulting in increased data transmission and storage costs.
Method used
Motion compensation is performed using multiple merge candidate lists and reordering merge candidates to improve inter prediction efficiency. The specific methods include derive merge candidates, generating a merge candidate list, rearrange merge candidates, and derive motion information based on the rearranged merge candidates.
Benefits of technology
Improves the efficiency of inter-frame prediction, reduces the cost of data transmission and storage, and supports video compression of high-resolution and stereoscopic images.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a method for decoding / encoding an image and an apparatus for transmitting compressed video data. The method of decoding an image includes: deriving a merge candidate of a current block, the merge candidate including at least one spatial merge candidate derived from at least one neighboring block adjacent to the current block; constructing a merge candidate list of the current block by inserting merge candidates; after the construction is completed, selecting two merge candidates from the merge candidates in the merge candidate list; obtaining a prediction sample of the current block based on the motion information of the selected merge candidate; obtaining a residual sample of the current block; and reconstructing the current block by adding the prediction sample and the residual sample, selecting two merge candidates by explicitly signaling two pieces of index information via a bitstream, the two pieces of index information respectively specify one of the merge candidates included in the merge candidate list and one of the remaining merge candidates other than the first merge candidate specified by the first index information.
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