Unified Immersive Video Coding Specification for 3DoF+ and V-PCC

Solution Overview

Problem

Current codec systems for immersive video (3DoF+/MIV) and video-point cloud coding (V-PCC) have separate standards, leading to increased design complexity and reduced ecosystem adoption due to inefficiencies in video compression and high complexity areas.

Innovation Solution

A combined specification for immersive video (IV) that integrates 3DoF+/MIV and V-PCC, using High Efficiency Video Coding (HEVC) ScalabilityId types for atlases, occupancy maps, and additional attributes, and allocating an HEVC Network Abstraction Layer (NAL) Unit Type value for carrying IV units, while improving coding efficiency of camera and atlas parameters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If two separate standards specifications are maintained for 3DoF+/MIV and V-PCC, then each standard can be optimized independently, but implementation complexity increases and ecosystem adoption decreases

Engineering Contradiction:

Improvestandard optimizationVSAvoidimplementation complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the 3DoF+/MIV and V-PCC standards into a unified specification, integrating their respective features and requirements. This consolidation eliminates the need to maintain and implement two separate standards, thereby reducing implementation complexity while preserving the optimized features of both original standards through careful integration of their functionalities.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The unified specification is designed to serve multiple purposes and support both 3DoF+/MIV and V-PCC use cases within a single framework. By creating a universal standard that can handle different immersive video coding scenarios, the patent reduces the need for multiple specialized standards, thereby simplifying implementation while maintaining the ability to optimize for specific applications when needed.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If two separate standards specifications are maintained for 3DoF+/MIV and V-PCC, then each standard can be optimized independently, but ecosystem adoption becomes less likely

Engineering Contradiction:

Improvestandard optimizationVSAvoidecosystem adoption

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent merges the 3DoF+/MIV and V-PCC standards into a unified specification, integrating their respective features and requirements. This consolidation eliminates the need to maintain and implement two separate standards, thereby reducing implementation complexity while preserving the optimized features of both original standards through careful integration of their functionalities.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The unified specification is designed to serve multiple purposes and support both 3DoF+/MIV and V-PCC use cases within a single framework. By creating a universal standard that can handle different immersive video coding scenarios, the patent reduces the need for multiple specialized standards, thereby simplifying implementation while maintaining the ability to optimize for specific applications when needed.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Ease of manufacture

If existing standards are used for immersive video coding, then implementation is straightforward, but video compression efficiency and complexity remain suboptimal

Engineering Contradiction:

Improveimplementation easeVSAvoidvideo compression efficiency

Core Design Contradiction:

Ease of manufactureVSProductivity

Solution Approach 1:

The unified specification introduces improved coding parameters and techniques for immersive video, including enhanced prediction methods, optimized transform operations, and refined quantization strategies. These parameter changes are designed to improve video compression efficiency while maintaining implementation feasibility through systematic integration into the coding framework.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent segments the coding process into distinct modules and stages, allowing for optimized processing of different video components (e.g., texture, geometry, occupancy maps). This segmentation enables targeted improvements in compression efficiency for specific elements while keeping the overall implementation manageable through modular architecture.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12301869B2Immersive video coding techniques for three degree of freedom plus/metadata for immersive video (3DoF+/MIV) and video-point cloud coding (V-PCC)

Publication Date: 2025.05.13 INTEL CORP

AI summary

Techniques related to immersive video coding are discussed and include immersive video sequences and output units for random access to the immersive video, coding improvements for camera parameters coding, and coding efficiency improvements for atlas parameters.