3D Broadcasting Signal Allocation in Hybrid Fixed Mobile Systems
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Solution Overview
Problem
Current 3D broadcasting systems face a reduction in overall data transmission rate and image quality due to the need for separate data stream insertion for 3D composition in both 8-VSB and M/H modes, which operate independently.
Innovation Solution
A method and apparatus that allocate one image of a 3D image to a fixed broadcasting signal and the remaining image to a mobile broadcasting signal, using side information for composition, allowing for both 2D and 3D broadcasting services by combining fixed and mobile signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate data streams are inserted into both 8-VSB and M/H modes for 3D composition, then 3D broadcasting service is enabled, but overall data transmission rate decreases and service image quality degrades
Solution Approach 1:
The patent divides the 3D image data into two separate streams: one for fixed broadcasting (8-VSB mode) and one for mobile broadcasting (M/H mode). Each stream contains only the necessary image data for its specific mode, eliminating redundant transmission. The fixed broadcasting transmits left image and depth map, while mobile broadcasting transmits right image and depth map, allowing 3D composition at the receiver without duplicating all 3D data in both modes.
Solution Approach 2:
The patent creates a unified broadcasting system that can serve multiple functions: it can provide 2D broadcasting service, 3D broadcasting service, or a combination of both fixed and mobile 3D services. The system structure allows flexible configuration where the same infrastructure supports different service types by selectively activating appropriate data streams and composition modes.
2Adaptability or versatility
If separate data streams are inserted into both 8-VSB and M/H modes for 3D composition, then 3D broadcasting service is enabled, but service image quality degrades
Solution Approach 1:
The patent segments 3D image data into distinct components (left image, right image, depth map) and allocates them to different broadcasting modes based on their specific requirements. This segmentation allows each mode to receive optimized data with appropriate quality levels, avoiding the quality degradation that would result from compressing all 3D data for both modes simultaneously.
3Productivity
If fixed and mobile broadcasting signals are combined to provide 3D service, then transmission efficiency increases, but system complexity increases
Solution Approach 1:
The patent separates the broadcasting system into distinct fixed and mobile components, each handling specific data streams. This segmentation allows independent optimization of each subsystem while maintaining overall system efficiency, reducing the complexity that would arise from attempting to handle all data streams in a single unified processor.
Data Source
AI summary
Provided is an apparatus and a method for providing a three-dimensional (3D) broadcasting service that may provide a two-dimensional (2D) fixed broadcasting service using a fixed broadcasting signal or a 2D mobile broadcasting service using a mobile broadcasting signal when a transmitter transmits each of a left image and a right image constituting a 3D image using the fixed broadcasting signal or the mobile broadcasting signal, and the receiver receives the fixed broadcasting signal and the mobile broadcasting signal, or may provide a 3D broadcasting service by composing an image received using the fixed broadcasting signal and an image received using the mobile broadcasting signal into a 3D image.