Digital Broadcasting Reception for Stereoscopic Image Display
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Solution Overview
Problem
Current digital broadcasting methods are unable to effectively process and display stereoscopic images, as they are based on two-dimensional images, lacking the necessary infrastructure to support 3D image display and processing.
Innovation Solution
A digital broadcasting reception method and apparatus that receives and demultiplexes digital broadcasting signals containing base and extended view video streams, determines right/left view information using descriptors in program maps, terrestrial virtual channel tables, and service description tables, and decodes these streams to control the output for stereoscopic image display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If digital broadcasting uses traditional 2D image processing methods, then the system complexity remains low and compatibility with existing infrastructure is maintained, but the capability to process and display stereoscopic images is lost
Solution Approach 1:
The video stream is segmented into multiple view components (base view and extended view) with distinct descriptors. Each view has its own right/left information descriptor in the PMT, allowing independent processing and identification of stereoscopic content without overwhelming the entire system with complexity
Solution Approach 2:
Right/left view information is predetermined and embedded in descriptors during signal transmission (in PMT, TVCT, SDT, or EIT). The reception apparatus receives pre-organized view information, eliminating the need for complex real-time analysis and processing of stereoscopic content
2Measurement precision
If multiple descriptors are used to convey view information at different levels, then the precision of view identification is improved, but the amount of data and processing overhead increases
Solution Approach 1:
Different levels of descriptor detail are provided for different viewing scenarios. The system can use program-level descriptors for general stereoscopic content identification and event-level or frame-level descriptors only when specific view switching or detailed control is needed, optimizing data usage based on local requirements
Solution Approach 2:
The descriptor structure is designed to serve multiple functions: identifying stereoscopic content, determining view switching timing, and providing right/left view assignment. This multi-functionality reduces the need for separate data structures and minimizes overall data volume while maintaining comprehensive view information
Data Source
AI summary
The present invention provides a digital broadcasting reception method, including the steps of: receiving and demultiplexing digital broadcasting signals including reference period and extension period video streams; determining the right/left information of the reference period and extension period video streams by using a descriptor included in at least one of a Program Map Table (PMT), a Terrestrial Virtual Channel Table (TVCT), a Service Description Table (SDT), and an Event Information Table (EIT); decoding the reference period and extension period video streams; and controlling the decoded reference period and extension period video streams by using the right/left information.