Image codec method, image decode method, and decoder
By unifying right-shift parameters for different block sizes and modes in MIP, the image coding method addresses inefficiencies in video codecs, reducing storage and processing time while maintaining performance.
JP2026009299APending Publication Date: 2026-01-19GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
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Patent Information
- Application Number
- JP2025185373
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-11-04
- Publication Date
- 2026-01-19
AI Technical Summary
Technical Problem
The existing video codec technologies using Matrix-Based Intra Prediction (MIP) face inefficiencies due to varying parameters for different block sizes and modes, leading to increased storage requirements and processing time.
Method used
An image coding method that unifies initial right-shift parameters for different block sizes and modes using an offset parameter to standardize the number of right-shift bits, reducing the need for parameter lookup and storage.
Benefits of technology
This approach reduces storage space and processing time while maintaining codec performance, enhancing overall efficiency by simplifying the MIP algorithm.
✦ Generated by Eureka AI based on patent content.
Abstract
To provide an image codec method, an image decode method and a decoder for effectively improving the efficiency of a codec.SOLUTION: Before performing the coding processing according to the MIP mode, the encoder performs a correction to unify initial right-shift parameters corresponding to different sizes and different MIP mode numbers according to an offset parameter for indicating the number of right-shift bits of the predicted value, and when performing the coding processing according to the MIP mode, the encoder performs the coding processing according to the offset parameter. The decoder may perform a correction to unify the initial right-shift parameters corresponding to different sizes and different MIP mode numbers according to the offset parameter before performing the decoding process according to the MIP mode, and perform the decoding process according to the offset parameter when performing the decoding process according to the MIP mode.SELECTED DRAWING: Figure 7
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