Seamless Video Loop Generation via Shared Resource Architecture
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Solution Overview
Problem
Existing methods for creating seamless video loops from handheld or dynamic video inputs require significant user effort and are not efficient in minimizing visual artifacts, especially when compared to pre-planned, tripod-mounted footage.
Innovation Solution
A method for generating seamless video loops by identifying optimal loop parameters through frame-time normalization and energy function minimization, which includes a Forward-Reverse Loop approach that balances memory usage and computing latency, and utilizes a shared resource architecture to create multiple output video variations efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual frame identification is used to create video loops, then visual quality and smoothness are improved, but user effort and time consumption increase significantly
Solution Approach 1:
The system automatically identifies optimal loop parameters by analyzing the input video itself to find frames that minimize temporal discontinuity, eliminating the need for manual user intervention while maintaining high video loop quality
Solution Approach 2:
The patent replaces manual mechanical frame-by-frame analysis with an automated energy minimization algorithm that computes optimal loop parameters through mathematical optimization, significantly reducing time consumption while preserving visual quality
2Ease of operation
If automated loop parameter identification is implemented, then user effort is reduced, but visual artifacts increase
Solution Approach 1:
The system uses an energy function that provides feedback on temporal discontinuity between frames, iteratively adjusting loop parameters to minimize visual artifacts while maintaining ease of automated operation
Solution Approach 2:
The patent applies frame-time normalization as a preliminary step before loop parameter identification, pre-processing the video to enforce constant frame rate and reduce temporal variations that could cause visual artifacts
3Adaptability or versatility
If multiple output video variations are generated, then versatility and quality options increase, but computational overhead increases
Solution Approach 1:
The system performs preliminary analysis of the input video to identify optimal loop parameters and characteristics before generating multiple output variations, enabling efficient computation by reusing intermediate results across different output variants
Solution Approach 2:
The patent generates multiple output video variations by systematically varying loop parameters such as start frame, frame length, and reversal point based on the preliminary analysis, providing versatility while controlling computational overhead through parameter optimization
Data Source
AI summary
Techniques and devices for generating multiple output video variations for an input video based on a shared resource architecture. The shared resource architecture reuses and shares computational and gating results from one or more operations to create the multiple output video variations. The shared resource architecture applies a frame-time normalization of the trimmed and stabilized video to produce a trimmed stabilized normalized video and, thereafter, uses the trimmed stabilized normalized video to precompute one or more video parameters that can be shared with multiple output video variations. The shared resource architecture can then generate multiple output video variations using the shared video parameters.