Variable Playback Speed Template for Video Editing
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Solution Overview
Problem
Manual processing of video data to identify and edit best scenes in videos captured by digital cameras is labor-intensive and time-consuming, especially with high-resolution raw-format videos, and existing automated methods often result in unpolished transitions when applying effects like slow-motion.
Innovation Solution
A camera system that captures metadata alongside video, allowing a video server to automatically identify best scenes based on metadata such as acceleration, location, and other environmental data, and generate video summaries or apply playback speed effects using predefined templates, reducing manual intervention and improving the professionalism of edited videos.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automated video processing is used to identify best scenes, then productivity is improved, but use of energy increases due to resource-intensive processing of high-resolution video data
Solution Approach 1:
The patent extracts only the essential metadata parameters (acceleration, location, environmental data) from the video content for scene identification, rather than processing the entire high-resolution video data. This extraction approach enables automated best scene identification while significantly reducing computational resource consumption and energy usage.
2Manufacturing precision
If variable playback speed effects are applied to create polished slow-motion, then manufacturing precision is improved, but device complexity increases due to multiple speed specifications
Solution Approach 1:
The patent implements dynamic playback speed adjustment by defining speed templates that specify different playback speeds at different time points within a scene. This allows the system to transition smoothly between normal and slow-motion playback, creating polished professional-quality video effects while managing complexity through template-based control rather than manual frame-by-frame adjustment.
Data Source
AI summary
A playback speed effect is applied to a video using a playback speed template. The playback speed template specifies playback speed ratios (i.e., ratios between playback duration and capture duration) at the highlight moment, at a template start time, and at a template end time. A video associated with a highlight tag indicating a highlight capture time of a highlight moment within the video is accessed. An input portion of the video including the highlight moment is identified. The duration of the input portion has a duration depending on the template start time and the template end time. A playback speed template is applied to the input portion. A modified video including a modified video portion is generated from the input portion of the video according to the applied playback speed template and is provided for subsequent playback.