Video Frame Conversion for Automatic Action Slow Motion
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Solution Overview
Problem
Ordinary users find it difficult to control slow-motion or fast-motion video shooting technologies, resulting in suboptimal video quality due to the inability to use advanced capabilities like DCG and PDAF at high frame rates.
Innovation Solution
A video processing method that automatically generates slow-motion or fast-motion videos by processing image frames at the same frame rate as playback, using frame interpolation or extraction to adjust frame quantities, without manual user intervention, and supports advanced capabilities like DCG and PDAF.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high frame rate shooting is used to achieve slow-motion effect, then slow-motion effect is improved, but advanced capabilities like DCG and PDAF cannot be supported
Solution Approach 1:
The patent records video at high frame rate (e.g., 60fps or 120fps) in advance, then performs frame interpolation or extraction during post-processing to generate slow-motion or fast-motion effects. This preliminary high frame rate recording enables subsequent frame rate conversion while maintaining support for advanced capabilities like DCG and PDAF that may not be available during high frame rate shooting.
Solution Approach 2:
The patent creates intermediate frames by interpolating between existing high frame rate video frames to generate additional frames at the desired playback frame rate. This copying and transformation of frame data allows slow-motion effects to be achieved without requiring the camera hardware to support advanced capabilities at the higher frame rate.
2Manufacturing precision
If manual control of slow-motion or fast-motion shooting is required, then shooting effect can be adjusted, but operation complexity increases and ordinary users cannot control the technologies
Solution Approach 1:
The patent automatically detects action scenes in the video and applies appropriate frame rate conversion (slow-motion or fast-motion) without requiring manual user input. The system serves itself by autonomously analyzing video content, identifying actions, and generating the final video with optimized effects, making advanced slow-motion technology accessible to ordinary users.
Solution Approach 2:
The patent uses automatic action detection algorithms that analyze video content and provide feedback to determine where slow-motion or fast-motion effects should be applied. This feedback mechanism enables the system to automatically adjust shooting effects based on the detected action scenes, eliminating the need for manual user control while maintaining high quality results.
3Speed
If frame interpolation or extraction is performed to adjust frame quantities, then slow-motion or fast-motion effect is achieved, but processing complexity increases
Solution Approach 1:
The patent divides the video processing into distinct segments: action detection, frame selection/interpolation, and video assembly. By segmenting the processing workflow and applying frame rate conversion only to detected action scenes rather than the entire video, the processing complexity is reduced while still achieving the desired slow-motion or fast-motion effects where needed.
Data Source
Figure 1A~1B
Figure 1C
Figure 2A
AI summary
Embodiments of this application provide a video processing method and an electronic device, and relate to the field of terminal technologies. When recording a video, the electronic device collects image frames based on a first frame rate, and generates an original video file; automatically performs frame interpolation or frame extraction processing on image frames in the original video file that include a specified action; and plays a processed video file based on the first frame rate. Therefore, slow-motion playing or fast-motion playing is automatically performed on image frames in a video that include a specified action, and a user does not need to manually capture the specified action. In addition, use of an advanced capability during video recording is supported, thereby ensuring video quality.