Video Object Duration Control via Appearance Ratio Conversion
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Solution Overview
Problem
Conventional video generation devices cannot effectively control the duration of objects in a new video based on their appearance ratios in the input video, making it difficult to generate videos where objects appear for the appropriate amount of time.
Innovation Solution
A video generation device that calculates the appearance ratio of objects in an input video and converts this ratio into presentation length for the new video, allowing for the control of object duration using a conversion rule, either predefined or user-selected.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If appearance ratio is used only for determining potential hero and center position, then the system can identify main subjects, but the presentation length of each object cannot be controlled according to its appearance ratio
Solution Approach 1:
The patent transforms the appearance ratio parameter into a presentation length parameter through a conversion function. The appearance ratio calculation means computes the ratio of frames where each object appears, and the presentation length determination means converts this ratio into a specific number of frames for presentation in the new video, allowing automatic control of each object's presentation duration based on its appearance frequency
Solution Approach 2:
The patent introduces a conversion function as an intermediary between appearance ratio and presentation length. This conversion function (which can be linear, logarithmic, or user-defined) acts as a mediator that translates the appearance ratio information into actionable presentation length values, enabling flexible and automatic control of object display duration
2Productivity
If separate setting is required for each object's presentation length, then user control is possible, but the process becomes complex and time-consuming
Solution Approach 1:
The system performs self-service by automatically determining the presentation length of each object based on its appearance ratio. The appearance ratio calculation means and presentation length determination means work together to autonomously compute and assign appropriate presentation lengths without requiring manual intervention, thereby显著提高 video generation efficiency while maintaining reasonable control over output quality
3Measurement precision
If appearance ratio is calculated for all objects, then comprehensive analysis is achieved, but the conversion to presentation length becomes computationally intensive
Solution Approach 1:
The patent segments the video processing task by first identifying and tracking individual objects throughout the video sequence. The appearance ratio calculation is performed separately for each detected object by counting the number of frames in which each object appears, divided by the total frame count. This segmented approach allows precise calculation for each object while managing computational load through efficient frame-by-frame analysis
Data Source
AI summary
In a device for editing input video and generating a new video, it is possible to control how long each object appearing in an input video should be made to appear in a new video according to the appearance ratio of each object in the input video. Appearance ratio calculation means 101 calculates an appearance ratio of each object appearing in the input video. Appearance ratio presentation length conversion means 102 converts the appearance ratio of each object into a video presentation length of each object in the new video by using a conversion rule in which a presentation length corresponding to the appearance ratio is uniquely determined. New video generation means 103 edits the input video and generates a new video that substantially satisfies the video presentation length of each object.