Display Device Video Frame Sharpness Control
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Solution Overview
Problem
Display devices face challenges in maintaining user-perceived video quality when data reception conditions change, leading to noticeable alterations in video resolution and sharpness, which can disrupt the viewing experience.
Innovation Solution
A display device with a processor that controls video frame resolution and sharpness by applying pre-configured quality factor changes, particularly adjusting sharpness values of adjacent video frames to minimize perceptual changes in user resolution, even during scene changes or changes in data reception conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the resolution of video frames is changed to adapt to data reception conditions, then the adaptability of the display device is improved, but the user's perceptual resolution changes noticeably, degrading the viewing experience
Solution Approach 1:
The patent changes the sharpness parameter of video frames to compensate for resolution changes. When resolution increases, sharpness is reduced; when resolution decreases, sharpness is increased. This parameter transformation maintains user-perceived quality while adapting to data reception conditions.
Solution Approach 2:
The patent applies sharpness adjustment to adjacent video frames before they are displayed, anticipating the resolution change. By pre-adjusting the sharpness of neighboring frames, the transition becomes seamless and the user does not perceive abrupt quality changes.
2Reliability
If the sharpness of video frames is adjusted to minimize perceptual changes, then the viewing experience is improved, but the complexity of video processing increases
Solution Approach 1:
The patent applies different sharpness adjustment strategies to different video frames based on their specific characteristics. Scene change frames receive different treatment than non-scene change frames, allowing optimized processing for each frame type while maintaining overall quality.
Solution Approach 2:
The patent uses scene change detection as a feedback mechanism to determine whether to apply sharpness adjustment. By detecting scene changes, the system intelligently decides when sharpness modification is necessary, avoiding unnecessary processing for frames where it would be ineffective.
Data Source
AI summary
Disclosed are a display device and an operating method therefor. According to an aspect of the present disclosure, a display device comprises a video decoder; a display configured to output videos; and a processor configured to control the video decoder, wherein, when a first video frame to be output through the display having a resolution different from that of the previous frame is detected among the video frames decoded by the video decoder, the processor is configured to control a resolution of the first video frame and at least one second video frame which is adjacent to the first video frame to be changed.