Broadcast Receiver 3D Display View Point Control
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Solution Overview
Problem
Broadcast receivers struggle to efficiently process and display three-dimensional (3D) video data, particularly in environments where both 3D and 2D devices are used, leading to inconsistent and incorrect display outputs due to lack of view point control.
Innovation Solution
A broadcast receiver system that receives and processes video streams with different view points by using a tuner, demultiplexer, decoder, and 3D display controller to extract and decode view point information, allowing for accurate control of 3D video display outputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a broadcast receiver processes video streams with multiple view points for 3D display, then the 3D display accuracy is improved, but the device complexity increases due to the need for view point information extraction and control mechanisms
Solution Approach 1:
The patent extracts view point information from video stream metadata separately from the main video decoding process. The demultiplexer identifies and extracts view point indicators from the video stream, which are then used by the 3D display controller to properly route left and right view images to the display device, thereby achieving accurate 3D display without fundamentally redesigning the entire decoding system
Solution Approach 2:
The patent introduces a 3D display controller as an intermediary component between the video decoder and the display device. This controller receives decoded video streams, uses extracted view point information to determine the appropriate view (left or right), and controls the display device to present the correct images to the corresponding eyes, thus enabling accurate 3D display with minimal changes to existing components
2Adaptability or versatility
If the system supports both 3D and 2D display devices with view point control, then the adaptability is improved, but the ease of operation deteriorates due to the need for complex configuration and control
Solution Approach 1:
The patent implements automatic detection and adaptation where the broadcast receiver automatically detects whether a 3D or 2D display device is connected and automatically configures the video stream processing accordingly. The system self-adjusts by examining device capabilities and automatically selecting the appropriate view point information extraction and display control mode, eliminating the need for manual configuration by users
Solution Approach 2:
The patent designs the video processing system to handle both 3D and 2D display devices through a universal processing pipeline. The same demultiplexer, decoder, and display controller can process video streams for either 3D or 2D output by simply adjusting the view point information extraction and display control parameters, allowing one system to serve multiple display types without requiring separate dedicated systems
Data Source
AI summary
A broadcast receiver and a method for processing video data are disclosed. The method for controlling a three dimensional (3D) video display output of a broadcast receiver includes receiving a broadcast signal including a video stream, wherein the video stream includes a plurality of video stream sections having different view points, acquiring view point information indicating corresponding view points of the video stream sections, and controlling a three dimensional (3D) video display output of the video stream according to the obtained view point information.