Scalable Nesting SEI Messages for Layer and OLS Signaling

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Solution Overview

Problem

Existing video coding systems employ redundant and complex SEI messages for layers and output layer sets, leading to increased processor, memory, and network signaling resource usage.

Innovation Solution

Implementing a scalable nesting SEI message that contains parameters related to either layers or output layer sets, using a scalable nesting OLS flag to specify application, reducing the number of SEI message types and message ID data length.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate SEI messages are used for layers and output layer sets, then comprehensive parameter coverage is achieved, but system complexity and redundancy increase

Engineering Contradiction:

Improveparameter coverageVSAvoidSEI message structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines separate SEI messages for layers and output layer sets into a unified scalable nesting SEI message structure. This single message type can carry parameters for both layers and OLSs through conditional flags and nested message containers, eliminating the need for multiple separate message types and reducing structural complexity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The scalable nesting SEI message is designed as a universal message type that can serve multiple functions: it can carry layer-specific parameters, OLS-specific parameters, or both simultaneously through the use of a scalable nesting OLS flag and conditional message nesting structures, replacing the need for specialized separate messages.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Measurement precision

If multiple SEI message types are maintained, then specific parameter targeting is precise, but message ID data length and processing overhead increase

Engineering Contradiction:

Improveparameter targetingVSAvoidmessage ID data

Core Design Contradiction:

Measurement precisionVSQuantity of substance

Solution Approach 1:

By merging multiple SEI message types into a single scalable nesting SEI message type, the patent reduces the number of distinct message ID values needed. The unified message structure uses internal flags and nested message identifiers to achieve precise parameter targeting without requiring multiple separate message type IDs, thereby reducing message ID data length.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent implements a nested message structure where scalable-nested SEI messages are contained within the main scalable nesting SEI message. This nesting approach allows precise targeting of specific layers or OLSs through hierarchical identifiers while using a single top-level message type ID, reducing the overall message ID data requirements.

Inventive Principle:

Principle #7Nested doll (Nesting)

Data Source

PatentUS12610070B2Scalable nesting SEI messages for OLSs

Publication Date: 2026.04.21 HUAWEI TECH CO LTD

AI summary

A video coding mechanism is disclosed. The mechanism includes receiving a bitstream comprising one or more layers and a scalable nesting supplemental enhancement information (SEI) message. The scalable nesting SEI message includes one or more scalable-nested SEI messages and a scalable nesting output layer set (OLS) flag. The scalable nesting OLS flag is set to specify whether the scalable-nested SEI messages apply to specific OLSs or specific layers. A coded picture is decoded from the one or more layers to produce a decoded picture. The decoded picture is forwarded for display as part of a decoded video sequence.