3D Broadcast Signal Packing for UHD Transmission Efficiency
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Solution Overview
Problem
Current technologies face challenges in efficiently transmitting 3D content, particularly in providing ultra-high definition (UHD) level broadcasts that include left and right images, as well as depth maps, while also supporting 2D content transmission within the same frame and utilizing temporal scalability coding schemes.
Innovation Solution
A method involving encoding and packing frames that include left and right image frames, along with depth map frames, into different layers within a broadcast signal, and signaling information to manage the arrangement and composition of these frames, allowing for efficient transmission and reception of 3D content using a UHD-level transmission frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple image frames (left, right, depth maps) are transmitted separately, then transmission quality is maintained, but transmission efficiency and bandwidth utilization deteriorate
Solution Approach 1:
The patent combines multiple image frames (left image, right image, depth maps) into a single packed transmission frame. This merging approach transmits multiple pieces of information simultaneously through one channel, improving transmission efficiency and reducing bandwidth consumption compared to separate transmission of each frame
2Manufacturing precision
If UHD-level transmission frames are used for 3D content, then content quality is improved, but complexity of frame management and encoding deteriorates
Solution Approach 1:
The patent segments the UHD transmission frame into distinct regions, with specific areas allocated for left images, right images, and depth maps. This segmentation provides a clear structural framework that simplifies frame management and encoding processes while maintaining UHD quality standards
Solution Approach 2:
The patent utilizes temporal scalability coding schemes that add a time dimension to the encoding process. By organizing frames across different temporal layers, the system manages complex UHD content through temporal relationships rather than spatial complexity alone
3Adaptability or versatility
If separate transmission channels are used for 3D and 2D content, then content compatibility is maintained, but system complexity and resource utilization deteriorate
Solution Approach 1:
The patent creates a universal transmission frame structure that can accommodate both 3D content (with depth maps and multiple views) and 2D content (single view). This multi-functional frame design allows the same transmission system to handle different content types without requiring separate channels, reducing system complexity while maintaining compatibility
Data Source
AI summary
The present invention relates to a method and/or apparatus for transmitting and receiving a broadcast signal for a three-dimensional (3D) broadcasting service. A broadcast signal transmission method according to an embodiment of the present invention comprises the steps of: encoding each of packing frames, in which at least one frame among a left image frame, a right image frame, a depth map frame for the left image, and a depth map frame for the right image is packed, and signaling information for the packing frames; and generating a broadcast signal including the encoded packing frames and signaling information; and transmitting the generated broadcast signal.