3D Video Format Converter for Color Bleeding Correction
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Solution Overview
Problem
Existing systems for delivering stereoscopic 3D content to home devices, such as set-top boxes and Blu-ray players, often result in poorly designed video encoding solutions due to a lack of guidance on the video encoding process, leading to subpar performance and issues like color bleeding artifacts from improper color and format conversion.
Innovation Solution
A system that includes a converter box or integrated solution within playback devices and displays to perform color correction and format conversion, using techniques like pixel replication and temporal interpolation to correct errors and maintain the integrity of 3D signals, ensuring proper chroma upconversion and format alignment with the display capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If color and format conversion is performed without considering the interleaved format of 3D images, then device complexity is reduced, but color artifacts and image quality deteriorate
Solution Approach 1:
The patent applies preliminary action by detecting the interleaved format (checkerboard, column, or row) before performing color and format conversion. This advance detection enables the conversion process to be tailored to the specific format, preventing color artifacts from the outset rather than attempting to correct them afterward.
Solution Approach 2:
The patent implements local quality by applying different conversion strategies based on the detected interleaved format type. Each format (checkerboard, column, row) receives customized processing parameters and conversion methods appropriate to its specific structure, ensuring optimal quality for each case rather than using a generic approach.
2Manufacturing precision
If proper chroma upconversion and format alignment are performed, then image quality is improved, but device complexity and processing requirements increase
Solution Approach 1:
The system performs preliminary detection of the interleaved format and determines the appropriate conversion parameters before executing the chroma upconversion and format alignment processes. This advance preparation simplifies the actual conversion by having all necessary parameters ready, reducing real-time processing complexity.
Solution Approach 2:
The patent employs dynamic processing by adjusting conversion parameters and processing intensity based on the detected format type and content characteristics. The system adapts its processing approach in real-time, applying more intensive processing only where necessary to maintain image quality while minimizing overall device complexity.
3Adaptability or versatility
If existing video compression technologies are used without format-specific encoding guidance, then compatibility with existing devices is maintained, but video encoding performance deteriorates
Solution Approach 1:
The patent achieves universality by creating a multi-functional encoding system that can handle multiple interleaved formats (checkerboard, column, row) and deliver to various display types. The system maintains compatibility with existing video compression standards while adding format-specific processing capabilities, allowing a single system to serve multiple purposes without sacrificing performance.
Solution Approach 2:
The system utilizes parameter changes by adjusting encoding parameters based on the detected interleaved format. Different formats receive optimized encoding parameters tailored to their specific characteristics, improving video encoding performance while maintaining compatibility with standard video compression technologies through controlled parameter modification.
Data Source
AI summary
Conversion of interleaved data and/or correction of color samples or other data are corrected by recognizing an underlying arrangement or format of different data sets within a data stream and a conversion process applied that causes bleeding between the sets. The data sets are, for example, separate channel views of a 3D display, and the corruption occurs, for example, upon up-conversion of color samples that take into account both views together rather than individually. The invention is embodied, for example, as part of a playback device, display, or as a stand alone converter box that corrects the corrupted samples by at least one of substitution, filtering, or interpolation with appropriately selected samples (e.g., neighboring samples of a same view).