Video Recording Alignment for Screen Flicker Correction
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Solution Overview
Problem
Discrepancies between the frame rate of video recordings and the refresh rate of monitor displays cause flickering in captured footage, obscuring details and compromising the accuracy of user interaction analysis in computing systems.
Innovation Solution
A video alignment system that automatically superimposes clear screenshots over flicker-affected frames, ensuring continuous visibility of screen content by overlaying previously captured images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If video recording is performed at a fixed frame rate, then the recording process is simple and stable, but flickering occurs when the frame rate does not match the monitor refresh rate
Solution Approach 1:
The system dynamically adjusts the video recording frame rate to match the monitor refresh rate. The processor detects the refresh rate of the display device and automatically synchronizes the camera's frame rate accordingly, eliminating flickering while maintaining recording stability.
Solution Approach 2:
The system changes the frame rate parameter of the video recording based on the detected monitor refresh rate. By adjusting this critical parameter, the system ensures synchronization between the camera and display, preventing flickering artifacts in the recorded footage.
2Object-affected harmful factors
If the frame rate is synchronized with refresh rate, then flickering is eliminated, but the system complexity increases due to rate detection and adjustment
Solution Approach 1:
The system performs self-synchronization by automatically detecting the monitor refresh rate and adjusting its own frame rate without external intervention. The processor内置 capabilities to detect refresh rates and autonomously configures the camera parameters, reducing the need for additional external synchronization equipment.
Solution Approach 2:
The processor serves multiple functions: it processes video data, detects monitor refresh rates, determines synchronization parameters, and controls camera settings. This multi-functionality consolidates what could be separate components into a single integrated system, managing complexity through functional integration.
3Manufacturing precision
If high frame rate recording is used, then video quality and detail capture are improved, but data processing and storage requirements increase
Solution Approach 1:
The system uses frame rate synchronization to capture only the necessary frames at the optimal rate matching the display refresh. Rather than continuously recording at maximum frame rates, it captures precisely when needed, reducing redundant data while maintaining quality for analysis purposes.
Data Source
AI summary
Methods and apparatus for dynamic video recording alignment are provided. A video alignment system receives a first signal indicating that an interaction device comprising a screen is in use. Responsive to the first signal, the system instructs the interaction device to record a series of images displayed on the screen. The system detects flicker in a video recording generated by a camera and depicting the screen, where the video recording comprises one or more defective frames contributing to the flicker. Upon detecting the flicker, the system retrieves one or more images, from the series of images, where the one or more images are recorded by the interaction device at moments of corresponding to the flicker. The system superimposes the one or more images onto the one or more defective frames in the video recording.