Aligned Video Comparison Tool for Seamless Quality Assessment
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Solution Overview
Problem
Existing video quality comparison methods are inefficient due to the difficulty in aligning and comparing multiple video versions simultaneously, often requiring manual adjustment and interrupting the direct visual comparison process with menus and multiple controls, which hinders seamless perception of differences.
Innovation Solution
A video quality comparison tool that displays two versions of a video in the same window, achieving spatial and temporal alignment, with user-controlled switching and no-look selection options, allowing for seamless comparison without visual interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple video players are used to display different video versions simultaneously, then visual comparison is enabled, but device complexity and ease of operation deteriorate due to multiple controls and manual alignment requirements
Solution Approach 1:
The patent merges multiple video players into a single integrated player window that can display multiple video versions sequentially. This consolidation eliminates the need for multiple separate players and their associated controls, reducing device complexity while maintaining the ability to compare video versions visually through automated switching between versions.
Solution Approach 2:
The single video player is designed to perform multiple functions: displaying different video versions, automated spatial alignment, temporal synchronization, and sequential switching. This multi-functional design replaces the need for multiple specialized players and manual alignment tools, simplifying the overall system while enhancing comparison capabilities.
2Manufacturing precision
If manual alignment of video players is performed, then spatial alignment is achieved, but productivity and ease of operation worsen due to laborious hand-adjustment process
Solution Approach 1:
The system performs preliminary automated spatial alignment of video versions before display. By pre-processing the alignment calculations and transformations, the system eliminates the need for manual real-time adjustment during comparison, significantly reducing the time and effort required while maintaining high alignment precision.
Solution Approach 2:
The patent replaces manual mechanical alignment operations with automated computational algorithms. The system uses image processing and coordinate transformation algorithms to automatically align video versions spatially, substituting the manual drag-and-drop mechanism with an automated digital alignment process that is both faster and more precise.
3Reliability
If video switching between players is performed, then comparison is enabled, but ease of operation and productivity deteriorate due to menu interruptions and selection imagery
Solution Approach 1:
The patent extracts and removes menu interfaces and selection imagery from the video comparison process. By eliminating these distracting elements, the system maintains continuous visual flow during video switching, allowing users to focus solely on comparing video content without interruptions from control interfaces or selection menus.
Solution Approach 2:
The system ensures continuous video display during switching between versions by using cross-fade transitions or buffer-based switching. This maintains the visual continuity of the comparison process, preventing interruptions that would break the user's focus and reduce the effectiveness of the visual comparison task.
Data Source
AI summary
A video quality comparison tool provides for direct visual perceptual comparison of video sequences. Two inputs are presented at the same position and size, with no-look user choice of which to see and easy back-and-forth comparison while the videos are playing, single-stepping, or paused.