Signaling of quantization parameters in video processing

Adaptive Resolution Change with pixel refinement and optimized quantization parameter processing addresses high bandwidth and storage challenges in high-definition video by improving encoding and decoding efficiency, reducing memory and transmission needs.

JP2026086480APending Publication Date: 2026-05-26ALIBABA GROUP HOLDING LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
ALIBABA GROUP HOLDING LTD
Filing Date
2026-01-26
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

High bandwidth and storage requirements for high-definition video applications, particularly in video surveillance, due to the high bitrate of I-pictures, which are not the primary element in encoded video, making reductions in their usage negligible.

Method used

Adaptive Resolution Change (ARC) with pixel refinement based on fixed-phase interpolation to reduce algorithmic and hardware complexity while maintaining accuracy, and methods for processing video content by determining delta quantization parameters and chroma QP offset values to optimize video encoding and decoding processes.

Benefits of technology

Reduces bandwidth and storage requirements by optimizing video encoding and decoding processes, maintaining image quality through efficient compression and decompression techniques.

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Abstract

This provides a method for processing video content. [Solution] One exemplary method includes receiving a bitstream containing coded video data, determining a first parameter of the coded block, determining one or more second parameters related to a delta quantization parameter (QP) value or a chroma QP offset value according to the first parameter, and determining at least one of the delta QP value or chroma QP offset value according to one or more second parameters.
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