3D Video Data Transfer via Frame Unit Segmentation
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Solution Overview
Problem
Current methods for transferring 3D video signals lack flexibility and reliability, particularly in handling various 3D data formats, which often result in a large volume of complex information needing to be transmitted efficiently over high-speed digital interfaces like HDMI.
Innovation Solution
The method involves organizing 3D video data into units with included transfer information, using multiplexing schemes such as field alternating, line alternating, or side-by-side frame multiplexing, and transmitting this information in separate fields within AVI or HDMI Vendor Specific info frames, allowing for maximum flexibility in formatting and synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If 3D video data is transmitted using traditional 2D video transfer formats, then the transmission can be performed using existing interfaces, but the system lacks flexibility in handling various 3D data formats and cannot efficiently transmit large volumes of complex 3D information
Solution Approach 1:
The patent segments 3D video data into distinct frame types (base view frames, depth frames, additional view frames) organized in units. Each frame type is clearly defined and can be independently processed, allowing the system to handle various 3D formats through different frame combinations while maintaining a structured transmission approach that manages complexity.
Solution Approach 2:
The patent creates a universal 3D video transfer format that can accommodate multiple 3D data formats (side-by-side, top-bottom, interlaced, depth-map) through a single standardized interface. The format uses a common frame structure with type indicators that enable the same transmission system to handle diverse 3D content types without requiring separate specialized systems for each format.
2Reliability
If all 3D video information is transmitted in a single continuous stream, then the transmission is simple to implement, but the system cannot provide proper synchronization indicators for composite 3D images and lacks reliability
Solution Approach 1:
The patent divides the 3D video stream into discrete units, each containing a complete set of frames (base view, depth, additional views) required to compose a full 3D image. Each unit is self-contained with synchronization information, ensuring reliable composition while organizing complex data into manageable segments that can be independently transmitted and processed.
Solution Approach 2:
The patent includes synchronization indicators and frame type information at the beginning of each unit, before the actual frame data. This preliminary information allows the receiving system to properly configure and synchronize the composition process for each 3D image, ensuring reliability by preparing all necessary control information in advance.
3Manufacturing precision
If 3D video data is transmitted at high data rates to maintain quality, then the image quality is preserved, but the existing HDMI interface may not support the required bandwidth
Solution Approach 1:
The patent segments 3D video data into multiple frame types that can be transmitted in an optimized sequence. By dividing the data stream into discrete frame units (base view, depth, additional views) rather than transmitting all pixels continuously, the system enables efficient bandwidth utilization while maintaining quality through selective transmission of essential 3D information.
Solution Approach 2:
The patent implements dynamic frame packing where the number and type of frames in each unit can be adjusted based on the specific 3D format being transmitted. This dynamic structure allows the system to optimize data rate requirements for different 3D content types, adapting the transmission parameters to match the actual bandwidth needs while preserving image quality.
Data Source
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AI summary
A system of transferring of three dimensional (3D) image data is described. A 3D source device (10) provides 3D display signal (56) for a display (13) via a high speed digital interface like HDMI. The 3D display signal comprises a sequence of frames. The sequence of frames comprises units, each unit corresponding to frames comprising video information intended to be composited and displayed as a 3D image. The 3D source device includes 3D transfer information comprising at least information about the video frames in the unit. The display detects the 3D transfer information, and generates the display control signals based in dependence on the 3D transfer information. The 3D transfer information in an additional info frame packet comprises information about the multiplexing scheme for multiplexing frames into the 3D display signal, the multiplexing scheme being selected of group of multiplexing schemes including frame alternating multiplexing, the frame alternating indicating said number of frames being sequentially arranged within said video data period.