Sub-frame Generator Spatial Filtering Video Sharpness
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Continuous-light-emitting video displays suffer from image blurring due to the continuous emission of light, which degrades video image quality, especially with moving objects, and existing solutions like image interpolation require significant computation and storage resources.
Innovation Solution
A system and method that generates plural sub-frames from a video frame and spatially filters them based on a display sequence to improve image sharpness, with the sub-frames ordered in terms of increasing and then decreasing sharpness to minimize blurring, using a sub-frame generator and spatial filter within a continuous-light-emitting video display system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If image interpolation is used to reduce blurring, then image sharpness is improved, but computational complexity and storage requirements increase significantly
Solution Approach 1:
The patent divides each video frame into multiple sub-frames, where each sub-frame contains a specific spatial frequency component. By segmenting the frame data and processing only the necessary high spatial frequency components, the system achieves image sharpness enhancement without requiring full-frame interpolation computations, thus reducing computational complexity while maintaining image quality.
2Manufacturing precision
If image interpolation is used to reduce blurring, then image sharpness is improved, but storage requirements increase significantly
Solution Approach 1:
The patent extracts only the high spatial frequency components from each video frame and stores/processes these separately from the low spatial frequency components. By taking out only the essential sharpness-critical data elements rather than storing complete interpolated frames, the system reduces storage requirements while still achieving improved image sharpness when the components are recombined for display.
3Duration of action of stationary object
If continuous light emission is used for display, then display continuity is improved, but image blurring increases
Solution Approach 1:
The patent implements periodic modulation of the light emission by dividing each frame into multiple sub-frames that are displayed sequentially with different spatial frequency content. High spatial frequency sub-frames are displayed at specific periodic intervals synchronized with the light emission cycles, creating the perception of sharp edges while maintaining continuous light output. This periodic structuring of display content resolves the contradiction between continuous illumination and image sharpness.
Data Source
AI summary
A system for, and method of, improving video image sharpness and a continuous-light-emitting video display system employing the system or the method. In one embodiment, the system for improving video image sharpness includes: (1) a sub-frame generator configured to receive a frame of a video image and generate plural sub-frames therefrom and (2) a spatial filter, associated with the sub-frame generator and configured to cause the plural sub-frames to be spatially filtered with respect to one another based on a display sequence thereof.