ADAPTIVE SCAN SEQUENCE AND DIRECTIONAL TRANSFORMATION FOR DIFFERENT COLOR SUBSAMPING FORMATS

DE602013087563T2Active Publication Date: 2026-06-17SONY GROUP CORP

Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
SONY GROUP CORP
Filing Date
2013-04-26
Publication Date
2026-06-17

AI Technical Summary

Technical Problem

Current video codecs like HEVC struggle to balance compression efficiency and quality for professional broadcast and digital cinema equipment, particularly in chroma channels, due to fixed relationships between luma and chroma channels that do not accommodate different data requirements.

Method used

Implementing mode-dependent coefficient scanning and directional transforms to adaptively adjust block sizes and scanning patterns for luma and chroma channels, allowing for variable compression based on image complexity and motion levels.

Benefits of technology

Enhances compression efficiency and image quality by optimizing data handling in chroma channels, particularly in professional applications like broadcasting and digital cinema, while maintaining compatibility with existing HEVC frameworks.

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