Hybrid Network Stereoscopic 3D VR Service System
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current ATSC 3.0 broadcast protocols do not support stereoscopic 3D 360-degree VR image transmission, limiting the provision of realistic media services in the broadcast industry.
Innovation Solution
A system and method for providing stereoscopic 3D 360-degree VR services using a hybrid network, which involves obtaining high-resolution images from 360-degree cameras, preprocessing, downsampling, encoding, and standardizing streams for transmission, reducing system complexity and enhancing compression efficiency by using a single encoder for base and enhancement layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple encoders are used for base layer and enhancement layer streams, then encoding flexibility is improved, but device complexity increases
Solution Approach 1:
The patent merges the base layer encoder and enhancement layer encoder into a single encoder unit. This encoder is configured to perform both base layer encoding and enhancement layer encoding functions, thereby reducing the number of encoder components while maintaining the ability to generate both stream types, thus resolving the contradiction between encoding flexibility and device complexity
Solution Approach 2:
The single encoder is designed with multi-functional capability to handle both base layer stream encoding and enhancement layer stream encoding. This universal encoder can adapt its operation mode based on the required stream type, providing encoding flexibility without requiring separate dedicated encoders for each layer
2Manufacturing precision
If high resolution images are transmitted for both left and right eyes, then image quality is improved, but transmission bandwidth requirements increase
Solution Approach 1:
The patent segments the stereoscopic video transmission into two distinct layers: base layer containing downsampled right eye image at lower resolution, and enhancement layer containing left eye image at higher resolution. This segmentation allows different quality levels for different eyes, optimizing bandwidth usage while maintaining overall image quality through selective enhancement
Solution Approach 2:
The patent applies different resolution parameters to different eye images: the right eye image is downsampled to lower resolution for the base layer, while the left eye image maintains higher resolution for the enhancement layer. This parameter differentiation reduces total bandwidth requirements while preserving high quality perception through the enhancement layer
Data Source
AI summary
The present invention relates to a system for providing a stereoscopic 3D 360-degree virtual reality (VR) service based on a hybrid network. According to a detailed embodiment of the present invention, standardizing and multiplexing based on an ATSC 3.0 protocol for a base layer stream, an enhancement layer stream, and a stereoscopic stream which are derived from a high resolution left eye image and a high resolution right eye image which are captured by 360-degree cameras may be performed by performing MPD signaling, and thus realistic media such as HD and UHD resolution 360-degree VR broadcast services, stereoscopic 3D 360-degree VR services, etc. may be provided. In addition, system complexity may be reduced by deriving a base layer stream, an enhancement layer stream, and a stereoscopic stream by using one encoder, and thus compression efficiency may be improved.