Image information decoding apparatus, encoding apparatus, transmission apparatus, and storage medium
By adopting a transformation-based method in image encoding, using MTS index to optimize the compression and transmission of image/video data, the effective encoding and transmission problems of high-resolution and high-quality image/video data are solved, and higher encoding efficiency and transmission efficiency are achieved.
CN119653109APending Publication Date: 2025-03-18LG ELECTRONICS INC
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Patent Information
- Application Number
- CN202510124181.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2019-11-11
- Filing Date
- 2020-11-09
- Publication Date
- 2025-03-18
AI Technical Summary
Technical Problem
The prior art is difficult to effectively compress and transmit or store high resolution and high quality image/video data, especially in the case of increasing demand for supporting immersive media such as VR and AR.
Method used
The transformation-based image encoding method is adopted to improve the encoding efficiency by deducing the transformation coefficients of the residual samples and using MTS index, thereby optimizing the compression and transmission process of the image/video.
Benefits of technology
The overall image/video compression efficiency is improved, the efficiency of encoding MTS indexes is enhanced, and the efficiency of image encoding methods using MTS is improved.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides an image information decoding apparatus, an image information encoding apparatus, an image information transmitting apparatus, and a storage medium. An image decoding method according to the present document comprises the steps of: deriving flag information indicating whether there is a significant coefficient in a second region other than a first region of an upper left corner of a current block; parsing the MTS index from the bitstream based on the flag information indicating that there is no significant coefficient in the second region; and deriving a residual sample of the current block by applying a transform kernel derived based on the MTS index to the transform coefficients of the first region, in which the flag information may be derived by determining whether there is a significant coefficient in the second region for each scanned sub-block that scans the significant coefficient.
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