2D Imagery Streaming for VR Scene Reconstruction
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Solution Overview
Problem
Current virtual reality content delivery methods require significant bandwidth and processing power, especially for complex scenes with numerous objects, as they generate and transmit 3D models, leading to inconsistent bandwidth requirements and resource consumption.
Innovation Solution
The system generates and transmits 2D color and depth data streams from multiple capture devices, allowing a media player device to construct a 3D representation, reducing server-side processing and network bandwidth by leveraging existing video processing technologies and graphics hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If 3D models are generated and transmitted for virtual reality content delivery, then immersive virtual reality experience is achieved, but bandwidth requirements and processing power increase significantly
Solution Approach 1:
The patent extracts only the essential 2D color and depth data from the scene, omitting the need to generate and transmit complete 3D models. This selective extraction of necessary data elements reduces bandwidth consumption while maintaining the ability to reconstruct virtual reality experiences at the client device
Solution Approach 2:
Instead of transmitting actual 3D models, the system uses 2D captured imagery as a simplified copy or representation of the three-dimensional scene. These 2D images serve as proxies that can be processed into 3D representations at the receiving end, reducing the data transmission requirements
2Loss of information
If 3D models are generated for complex scenes with numerous objects, then complete scene representation is achieved, but server-side processing power and time increase
Solution Approach 1:
The system extracts only the essential visual information in the form of 2D color and depth images, removing the computationally intensive step of generating complete 3D models on the server side. This extraction approach maintains scene representation while dramatically improving processing efficiency
Solution Approach 2:
Instead of generating 3D models from captured data on the server and then transmitting them, the system inverts the process by transmitting 2D captured imagery and performing the 3D reconstruction at the client device. This reversal of the processing sequence reduces server-side computational burden
3Quantity of substance
If consistent bandwidth requirements are implemented, then resource consumption becomes predictable, but adaptability to different scene complexities decreases
Solution Approach 1:
The system changes the fundamental parameters of data representation from complex 3D models to simpler 2D color and depth images. This parameter change creates a more consistent and predictable bandwidth requirement while the flexible nature of 2D image processing allows adaptation to various scene complexities through algorithms like neural radiance fields
Data Source
AI summary
An exemplary method includes a media content provider system acquiring, from a plurality of capture devices physically disposed at different vantage points in relation to a scene, a distinct set of two-dimensional (2D) color data and depth data (2D data) for each capture device included in the plurality of capture devices, each distinct set of 2D data representing a distinct unmeshed view of the scene as captured from a respective vantage point of a respective capture device included in the plurality of capture devices, acquiring metadata for each distinct set of 2D data, packaging each distinct set of 2D data into a transport stream such that the transport stream includes data representing each distinct unmeshed view of the scene as captured from each respective vantage point of each respective capture device, and providing the metadata and the transport stream for streaming to a media player device.