Adaptive 3D Video Frame Packing for Resolution Preservation
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Solution Overview
Problem
Current 3D video content delivery systems face challenges in preserving visual resolution due to interlacing artifacts, particularly in highly interlaced frames, which degrade the image quality when using traditional frame packing formats.
Innovation Solution
The method involves encoding 3D video programs using a combination of side-by-side and top-to-bottom frame packing formats based on the degree of interlacing, with highly interlaced frames using horizontal scaling to preserve vertical resolution and less interlaced frames using vertical scaling to preserve horizontal resolution, thereby reducing visual resolution loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional frame packing formats are used for highly interlaced frames, then horizontal resolution is preserved, but vertical resolution deteriorates due to interlacing artifacts
Solution Approach 1:
The system dynamically selects between side-by-side and top-to-bottom frame packing formats based on the interlacing characteristics of each frame. Frames with high interlacing content are processed using side-by-side packing to preserve vertical resolution, while frames with low interlacing content use top-to-bottom packing to preserve horizontal resolution, making the processing adaptive rather than static
Solution Approach 2:
Different frame packing formats are applied to different portions of the video content based on local interlacing characteristics. Highly interlaced portions receive side-by-side packing while less interlaced portions receive top-to-bottom packing, optimizing resolution preservation for each specific region of the video content
2Manufacturing precision
If top-to-bottom frame packing is used, then horizontal resolution is preserved, but vertical resolution is reduced
Solution Approach 1:
The system dynamically switches between top-to-bottom and side-by-side frame packing formats based on real-time analysis of frame interlacing characteristics. When frames exhibit low interlacing content, top-to-bottom packing is selected to preserve horizontal resolution; when high interlacing is detected, the system transitions to side-by-side packing
Solution Approach 2:
The frame packing format parameter is changed based on the interlacing parameter of the video content. By analyzing the interlacing degree and adjusting the packing format accordingly, the system optimizes the balance between horizontal and vertical resolution preservation for different video segments
3Manufacturing precision
If side-by-side frame packing is used for all frames, then vertical resolution is preserved, but horizontal resolution is reduced
Solution Approach 1:
Instead of uniformly applying side-by-side packing to all frames, the system applies different packing formats to different frames based on their specific interlacing characteristics. Frames requiring vertical resolution preservation receive side-by-side packing, while frames benefiting from horizontal resolution preservation receive top-to-bottom packing
Solution Approach 2:
The frame packing approach transitions from a static universal method to a dynamic adaptive method that responds to the interlacing characteristics of each frame, optimizing resolution preservation based on actual content requirements rather than applying a fixed approach to all content
Data Source
AI summary
A method and apparatus for encoding three-dimensional (“3D”) video includes receiving a left-eye interlaced frame and a corresponding right-eye interlaced frame of a 3D video. An amount of interlacing exhibited by at least one of the left-eye interlaced frame and the corresponding right-eye interlaced frame is determined. A frame packing format to be used for packing the left-eye interlaced frame and the corresponding right-eye interlaced frame into a 3D frame is selected based on the amount of interlacing that is determined. The left-eye interlaced frame and the corresponding right-eye interlaced frame are formatted into a 3D frame using the selected frame packing format. Illustrative frame packing formats that may be employed include a side-by-side format and a top-and-bottom format.