3D Subtitle Data Processing in Broadcast Receivers
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Solution Overview
Problem
Current broadcast receivers fail to effectively process and display 3D subtitle data, resulting in a 2D format presentation, which can cause user discomfort and fatigue due to the lack of 3D effect information in subtitle data transmission.
Innovation Solution
A broadcast receiver and method for processing 3D subtitle data by extracting base view and extended view subtitle information, using a controller to manage the display, ensuring compatibility with 2D legacy systems while providing a 3D effect through additional subtitle display information and disparity values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If 3D subtitle data is transmitted with extended view information, then the 3D effect quality is improved, but the data transmission complexity increases
Solution Approach 1:
The subtitle data is segmented into two distinct parts: base view subtitle information and extended view subtitle information. This segmentation allows the system to process and transmit 3D subtitle data in manageable components, where the base view provides essential subtitle content and the extended view adds 3D depth information, thereby improving 3D effect quality without overwhelming the transmission system with undifferentiated complex data
Solution Approach 2:
The patent transitions from 2D subtitle display to 3D subtitle display by adding a depth dimension. Extended view subtitle information includes disparity values and depth-related parameters that enable the subtitle to be rendered with three-dimensional spatial positioning, allowing users to perceive subtitle depth relative to the video content while maintaining efficient data transmission through structured dimensional expansion
2Ease of operation
If 3D subtitle display is implemented, then user experience is improved, but compatibility with 2D legacy systems deteriorates
Solution Approach 1:
The broadcast receiver is designed with multi-functional capability to handle both 2D and 3D subtitle data formats. The system can automatically detect and process extended view subtitle information when available (providing enhanced 3D user experience) while seamlessly falling back to standard 2D subtitle display when transmitting to legacy 2D-only devices, thereby achieving universal compatibility across different display capabilities
Solution Approach 2:
The subtitle display system dynamically adapts its output based on the receiving device's capabilities. The broadcast receiver adjusts whether to transmit and display extended view 3D subtitle information or standard 2D subtitle information according to the display device's supported format, enabling the system to optimize user experience for 3D-capable devices while maintaining compatibility with 2D legacy systems through dynamic format switching
Data Source
AI summary
A broadcast receiver and a 3D subtitle data processing method thereof are disclosed. A method for processing three dimensional (3D) subtitle data includes receiving, by a receiver, a broadcast signal including 3D subtitle data, extracting, by an extracting unit, subtitle display information for a base view and extended subtitle display information for an extended view from the 3D subtitle data, and controlling, by a controller, a 3D subtitle display using the subtitle display information for the base view and the extended subtitle display information for the extended view.