Viewpoint Metadata Grouping for VR Processor Load Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing VR technologies face challenges in efficiently switching between multiple viewpoints of 3D content, leading to processor load issues during viewport switching.
Innovation Solution
A method and apparatus that utilize metadata to group and manage multiple viewpoints, enabling easy switching by providing alignment and switching mode information, such as through the ViewpointAlignmentBox and ViewpointSwitchingModeBox, allowing for flexible and efficient viewport management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple viewpoints are supported in 3D content, then viewpoint switching capability is improved, but processor load increases during viewport switching
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing viewport alignment information and switching mode data in metadata before content delivery. The ViewpointAlignmentBox pre-defines spatial relationships between multiple viewpoints, and ViewpointSwitchingModeBox pre-specifies switching behaviors, allowing the playback device to perform simple lookups during runtime rather than complex real-time calculations, thereby reducing processor load while maintaining versatile viewpoint switching capability
2Ease of operation
If viewport switching is made flexible and efficient, then user experience is improved, but system complexity increases
Solution Approach 1:
The patent introduces metadata structures as intermediaries between the content and playback device. The ViewpointAlignmentBox and ViewpointSwitchingModeBox act as intermediary layers that encapsulate complex viewpoint management rules, allowing the playback device to achieve flexible viewport switching through simple metadata interpretation without requiring complex internal processing logic, thus improving ease of operation while controlling system complexity
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Provided is a method for transmitting metadata for omnidirectional content including a plurality of veiwpoints. The method comprises identifying the metadata for the omnidirectional content including the plurality of viewpoints; and transmitting the identified metadata, wherein the metadata includes information about an identifier (ID) of a viewpoint group including at least one viewpoint of the plurality of viewpoints, and wherein the at least one viewpoint in the viewpoint group shares a common reference coordinate system..