Video Scrolling via Gesture Recognition and Threshold Detection
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Solution Overview
Problem
Existing video playback systems on mobile computing devices lack intuitive and user-controllable methods for scrolling through video frames, relying on fixed playback controls that do not align with natural user interactions.
Innovation Solution
A video scrolling system that utilizes a gesture recognizer module to detect lateral movements of input objects, such as finger swipes or mouse clicks, to control video playback speed and direction, allowing users to scroll through frames by matching the direction and speed of their input actions, with features like threshold distance detection to prevent unintentional scrolling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If fixed playback controls are used, then device complexity is reduced, but ease of operation deteriorates due to lack of intuitive interaction
Solution Approach 1:
The system uses the user's natural finger swipes on the touchscreen to directly control video playback. The gesture recognizer module detects the swipe direction and magnitude, and the video player automatically adjusts playback speed and position accordingly, eliminating the need for separate control buttons or menus.
Solution Approach 2:
The patent replaces traditional mechanical control interfaces (buttons, sliders, knobs) with touch-based gesture recognition. The touchscreen detects finger movements and converts them into playback control signals, substituting physical mechanical controls with electronic touch sensing.
2Ease of operation
If gesture recognition is added, then ease of operation improves, but device complexity increases due to additional modules
Solution Approach 1:
The touchscreen serves multiple functions: it acts as both the display interface and the control input device. The same touchscreen that displays video content also detects swipe gestures to control playback, eliminating the need for separate control buttons and reducing overall device complexity.
Solution Approach 2:
The patent combines the gesture recognition functionality directly into the existing video player module. The video player includes both the video output functionality and the gesture recognizer module, merging what could be separate components into a unified system that reduces architectural complexity.
3Reliability
If threshold distance detection is implemented, then reliability improves by preventing unintentional scrolling, but device complexity increases
Solution Approach 1:
The system applies a threshold distance criterion before recognizing a swipe gesture as valid. By setting a minimum distance requirement, the system prevents accidental triggers from minor finger movements, ensuring that only intentional swipes initiate playback changes.
Data Source
AI summary
A system for video scrolling may allow a user to control speed and/or direction of video playback through user inputs. Such user inputs can include swiping one or more fingers on a touch-sensitive surface, clicking and dragging a computer mouse, or other input actions comprising lateral movements. The rate of playback can be configured based on the speed of the input action. In one embodiment, the user may play the video backward by reversing direction of the input action.