Video Resolution Conversion via Bidirectional Performance Matching
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Solution Overview
Problem
Current HDMI standard limitations result in inconsistent image quality when converting Full HD video to 4k2k resolution, as the performance of resolution conversion between video output and display devices varies, leading to unintended image quality display.
Innovation Solution
A video processing system with bidirectional communication capabilities between video output and display devices, using super-resolution converters to determine and match the performance levels of resolution conversion, ensuring that video data is converted to the intended high resolution based on the device's capabilities, with the option to perform resolution conversion either in the output device or the display device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the video output device converts video data to 4k2k resolution based on EDID, then the video can be output at maximum resolution, but the image quality deviates from the manufacturer's intent due to inconsistent conversion performance
Solution Approach 1:
Instead of the video output device unilaterally converting video data to 4k2k resolution, the invention inverts the control logic by having the video display device send a resolution conversion notification to the video output device. This allows the system to determine whether conversion should occur at the output device or the display device based on comparative performance evaluation, ensuring image quality consistency with the manufacturer's intent while preserving adaptability through bidirectional communication.
Solution Approach 2:
The invention implements a feedback mechanism where the video display device evaluates its own resolution conversion performance and communicates this information back to the video output device. The output device then compares its conversion performance with the display device's performance and adjusts its behavior accordingly. This feedback loop ensures that the system selects the optimal conversion location (output device or display device) to maintain consistent image quality while adapting to different device capabilities.
2Adaptability or versatility
If both video output device and video display device have resolution conversion functions, then adaptability is improved, but image quality becomes inconsistent depending on which device performs conversion
Solution Approach 1:
The invention changes the operational parameter of the resolution conversion function by introducing a performance comparison mechanism. Instead of both devices independently performing conversion, the system dynamically determines which device should perform conversion based on comparing their respective conversion performance parameters. This parameter-based decision-making ensures that conversion is performed by the device with superior capability, maintaining image quality consistency while preserving the adaptability of having both devices具备 conversion functions.
3Measurement precision
If the video output device always converts to 4k2k resolution, then maximum resolution output is achieved, but the intended image quality cannot be displayed due to performance differences
Solution Approach 1:
The invention makes the resolution conversion process dynamic rather than static. Instead of the video output device always converting to 4k2k resolution, the system dynamically determines the conversion location based on real-time performance comparison. The video output device converts to 4k2k only when its conversion performance is superior to the video display device's performance. When the display device has superior conversion performance, the output device outputs Full HD video and lets the display device perform conversion. This dynamic approach ensures both maximum resolution accuracy and image quality fidelity with the manufacturer's intent.
Data Source
AI summary
According to one embodiment, a video output device includes a first resolution converter and a first determination module. The first determination module is configured to determine whether a first level indicating the performance of resolution conversion processing of the first resolution converter is higher than a second level. The first resolution converter is configured to convert video data with a first resolution into one with a second resolution when the first level is higher than the second level.