Wearable Video Playback Speed Control via Vision Field
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wearable devices struggle to optimize video playback for users by adjusting playback speed based on the user's vision field and motion intensity, as existing technologies fail to dynamically adapt to varying motion speeds and frequencies, leading to suboptimal viewing experiences.
Innovation Solution
A method and device that determine a user's vision field by analyzing head orientation and eyeball motion, selecting video clips accordingly, and adjusting playback speed by judging motion intensity parameters such as speed and frequency, allowing for variable speed playback to enhance viewing experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If video playback is played at constant speed, then the playback system is simple to implement, but the viewing experience does not adapt to user's vision field and motion intensity
Solution Approach 1:
The playback system dynamically adjusts playback speed based on real-time detection of user's vision field and motion intensity parameters. The system transitions from static constant-speed playback to dynamic variable-speed playback, where playback speed changes continuously according to detected user state parameters such as head orientation, eyeball motion, and motion intensity frequency.
Solution Approach 2:
The system implements a feedback loop where sensors continuously detect user's vision field and motion intensity, the processor analyzes these parameters, and the playback speed is adjusted accordingly. This closed-loop feedback mechanism enables the system to adapt to user needs in real-time, improving viewing experience while managing complexity through automated control.
2Reliability
If playback speed is adjusted dynamically based on motion intensity, then viewing experience is optimized, but the system complexity increases due to additional sensors and processing requirements
Solution Approach 1:
The wearable device integrates multiple functions into a single system: vision field detection, motion intensity measurement, video playback control, and variable speed adjustment all work together in one integrated platform. This multi-functionality reduces the need for separate dedicated components for each function, managing overall device complexity while achieving reliable viewing experience optimization.
Solution Approach 2:
The system optimizes viewing experience by changing the playback speed parameter based on detected motion intensity parameters. Instead of adding complex hardware for each adjustment, the system modifies operational parameters (playback speed) in response to sensor data, achieving reliable adaptation with minimal additional complexity.
3Measurement precision
If the system processes multiple parameters (head orientation, eyeball motion, motion intensity), then accurate vision field determination is achieved, but processing time and computational load increase
Solution Approach 1:
The system continuously pre-processes and monitors user state parameters (head orientation, eyeball motion, motion intensity) in the background even when not actively adjusting playback. This preliminary action ensures that when playback speed adjustment is needed, the data is already prepared and analyzed, reducing real-time processing delays while maintaining high measurement precision.
Data Source
AI summary
A method for a device to control playback, includes: obtaining a video file; determining a vision field of a user: and selecting, from the vision file, a video clip corresponding to the vision field of the user and playing back the video clip.