Display Region Update Rate Control for Motion Blur Reduction
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Solution Overview
Problem
Existing methods for displaying video images with rapid motion suffer from motion blur due to limitations in frame rates and bandwidth, particularly in high-resolution displays, where increasing frame rates to reduce blur results in excessive data requirements and technical challenges with current drive electronics and display technologies.
Innovation Solution
The method involves providing video images with first and second subframes at different input rates, selectively updating corresponding regions of the display with different update rates, where the first region with rapid motion is updated at a higher rate than the second region, thereby reducing motion blur without significantly increasing overall bandwidth or data processing demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the frame rate is increased to reduce motion blur, then image quality of rapidly moving objects is improved, but data transmission bandwidth and data storage requirements increase proportionately
Solution Approach 1:
The patent divides the display area into multiple regions, each updated at different frame rates based on local motion characteristics. Regions with rapid motion are updated at higher frame rates to reduce blur, while static or slowly moving regions use lower frame rates to conserve bandwidth.
Solution Approach 2:
Different portions of the display receive different update rates tailored to their specific motion requirements. This allows high-quality rendering only where needed (in motion regions) while maintaining acceptable quality elsewhere, optimizing the trade-off between image quality and data bandwidth.
2Manufacturing precision
If the frame rate is increased to reduce motion blur, then image quality of rapidly moving objects is improved, but device complexity and cost increase due to requirements for special electronic drives and high-speed transmission systems
Solution Approach 1:
The display system is segmented into regions with different update rate requirements, allowing the use of standard electronics for low-update regions while applying high-speed drives only to specific regions needing rapid motion rendering.
Solution Approach 2:
The update rate parameter is varied spatially across the display rather than uniformly, enabling the system to achieve high image quality where needed without requiring the entire display system to operate at high speeds, thus reducing overall device complexity.
3Manufacturing precision
If the update rate is increased across the entire display, then motion blur is reduced, but the bandwidth requirements and processing demands increase significantly
Solution Approach 1:
The display is divided into regions processed at different rates, allowing efficient allocation of processing resources to only those areas requiring high-speed updates, thereby maintaining image quality while improving overall processing efficiency.
Solution Approach 2:
Processing intensity is matched to local motion characteristics, with high processing power applied only to regions containing rapid motion and reduced processing for static regions, optimizing the balance between image quality and processing efficiency.
Data Source
AI summary
A method of displaying a video of a scene on a display with reduced motion blur includes: providing the video of a scene having first subframes that have a first input rate and second subframes that have a second input rate, wherein the first subframes correspond to a first region of the display and the second subframes correspond to a second region of the display; and selectively providing the first and second subframes to corresponding regions in the display, and providing the first region of the display with a first update rate and the second region of the display with a second update rate, wherein the first update rate is greater than the second update rate, so that the displayed image has reduced motion blur.