A low-area, high-reliability pure intra-frame video encoding system and method

By using a pure intra-frame video coding system, eliminating inter-frame prediction and external storage dependencies, and trimming intra-frame prediction units, the area and reliability issues of the HEVC hardware system are solved, achieving low-area, high-reliability video coding results.

CN122420546APending Publication Date: 2026-07-17SHANDONG UNIV
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Patent Information

Application Number
CN202610554690.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-24
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing HEVC video coding hardware systems suffer from problems such as redundant chip logic area, excessive on-chip storage resource overhead, severe bit error propagation, and uncertain coding delay due to compatibility with full-size prediction units and inter-frame prediction modes.

Method used

A pure intra-frame video coding system is adopted, completely eliminating inter-frame prediction loops and external memory dependencies. By physically trimming intra-frame prediction units, a compact line buffer and physically trimmed intra-frame prediction module are designed to achieve independent NAL unit output.

Benefits of technology

It significantly reduces hardware area and storage overhead, eliminates external storage dependence, achieves ultra-low coding latency and high error resistance, meets industrial-grade real-time requirements, and comprehensively improves power consumption and throughput.

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Abstract

本发明涉及一种低面积、高可靠性的纯帧内视频编码系统及方法,包括:编码树单元输入接口、减法器、物理剪裁型帧内预测模块、变换与量化模块、反变换与反量化模块、加法器、紧凑型行缓存单元、熵编码与输出模块;本发明完全去除了帧间预测回路及外部存储器依赖,并对帧内预测单元进行了物理层级的尺寸剪裁,降低片上存储开销,突破了现有视频编码硬件的物理面积瓶颈,获得了极其优异的硅片面积利用率。本发明整体等效硬件面积相比于传统全功能 HEVC 混合架构大幅缩减了50%以上;即便与保留了全尺寸预测单元的标准纯帧内(Intra‑only)架构相比,本发明的核心面积依然实现了高达21%的额外缩减。
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