Occurrence-based intra coding (OBIC) fusion with non-angular coding mode selection
OBIC fusion with Non-angular Coding Mode Selection addresses inefficiencies in intra coding by using occurrence statistics to enhance mode selection, resulting in improved video coding efficiency and reduced data requirements.
WO2026143168A1PCT designated stage Publication Date: 2026-07-02OFINNO LLC
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- OFINNO LLC
- Filing Date
- 2025-12-23
- Publication Date
- 2026-07-02
AI Technical Summary
Technical Problem
Existing video coding technologies face inefficiencies in intra coding, particularly in selecting optimal coding modes, leading to suboptimal compression and increased data requirements for video sequences.
Method used
The implementation of Occurrence-based Intra Coding (OBIC) fusion with Non-angular Coding Mode Selection, which leverages occurrence statistics to enhance intra coding decisions, combining various prediction techniques to improve mode selection and reduce redundant information.
Benefits of technology
This approach enhances video coding efficiency by optimizing intra coding modes, reducing data size, and improving compression performance without compromising video quality.
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Smart Images
Figure US2025061225_02072026_PF_FP_ABST
Abstract
A coder obtains, for a block of video, first counts of occurrences of angular intra prediction modes (IPMs) used by a plurality of neighboring blocks of the block. The coder obtains, for the block, second counts of occurrences of non-angular intra coding modes used by the plurality of neighboring blocks. Based on the first counts, a plurality of angular IPMs is determined from the angular IPMs. Based on the second counts, a non-angular intra coding mode is determined based on the non-angular intra coding modes. The coder codes the block using a prediction block generated by combining the plurality of angular IPMs and the intra coding mode. For an encoder, the block is coded by signaling a residual block as a difference between the current block and the prediction block. For a decoder, the block is coded by combining the prediction block with the residual block to reconstruct the block.
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