6 DoF to 3 DoF Media Rendering via Sphere Revolution Orientation
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Solution Overview
Problem
Existing immersive media technologies face challenges in rendering 6 DoF media content on 3 DoF platforms, limiting user interaction and immersion due to differences in degrees of freedom support.
Innovation Solution
The solution involves processing circuitry that calculates and adjusts the revolution orientation of media content on a sphere centered at the user's location, converting 6 DoF information into 3 DoF compatible formats using rotation matrices and coordinate systems, allowing media content to be rendered on 3 DoF platforms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If 6 DoF media content is rendered on 3 DoF platforms, then media compatibility is improved, but rendering precision and interaction quality deteriorate
Solution Approach 1:
The patent transforms 6 DoF media content parameters (spatial location and rotation orientation) into 3 DoF parameters (revolution orientation on a sphere). This parameter transformation enables the same media content to be rendered on both 6 DoF and 3 DoF platforms, resolving the contradiction between compatibility and precision by adapting the representation rather than changing the content itself
Solution Approach 2:
The patent introduces an intermediary transformation process that converts 6 DoF information into 3 DoF information. This intermediary layer allows 6 DoF content to be compatible with 3 DoF platforms while preserving as much spatial and orientational information as possible, thus maintaining rendering precision within the constraints of the platform
2Adaptability or versatility
If 6 DoF information is converted to 3 DoF format, then platform compatibility is improved, but information loss increases
Solution Approach 1:
The patent extracts the essential spatial and orientational information from the 6 DoF data and represents it on a 3 DoF sphere. By taking out only the necessary information (position on sphere surface and revolution orientation), the system achieves compatibility with 3 DoF platforms while minimizing information loss compared to complete data discarding
Solution Approach 2:
The patent changes the dimensional representation from 6 DoF (3D space + rotation) to 3 DoF (sphere surface revolution). This dimensionality change allows the same spatial relationships to be represented in a lower-dimensional space, maintaining compatibility while preserving the essential geometric information through spherical coordinate transformation
Data Source
AI summary
Aspects of the disclosure provide methods and apparatuses for audio processing. In some examples, an apparatus for media processing includes processing circuitry. The processing circuitry receives first six degrees of freedom (6 DoF) information associated with a media content for a scene in a media application. The first 6 DoF information includes a first spatial location and a first rotation orientation for rotation about a center at the first spatial location. The processing circuitry determines that a rendering platform for rendering the media content is a three degrees of freedom (3 DoF) platform; and calculates, a revolution orientation of the media content on a sphere centered other than the first spatial location, according to at least the first spatial location. The revolution orientation is 3 DoF information associated with the media content for rendering on the 3 DoF platform.