Adaptive Virtual Control Relocation for Hand-Tracking Interfaces
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Solution Overview
Problem
Existing multimedia playback systems face challenges in user convenience due to static placement of virtual controls, requiring precise user movement to select controls, which becomes inconvenient as the user moves, especially with larger display sizes.
Innovation Solution
A multimedia playback system that adaptively modifies the user interface by using a video capture device to detect the user's hand movement, predict the next control selection, and dynamically relocate virtual controls to align with the user's path, allowing for easier access without precise hand placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If virtual controls are placed at a fixed location on the display, then the control placement is simple and stable, but it becomes inconvenient for users to access controls as they move, especially with larger display sizes
Solution Approach 1:
The patent implements dynamic control placement by continuously tracking the user's hand position via video capture and automatically relocating virtual controls along the user's movement path. This transforms the static control interface into a dynamic one that adapts to user motion, resolving the contradiction between ease of access and system complexity.
Solution Approach 2:
The system performs self-service by automatically detecting user intent through hand tracking and proactively repositioning controls without requiring explicit user commands. The control system serves itself by anticipating user needs and adjusting the interface accordingly, improving accessibility while maintaining simplicity.
2Measurement precision
If precise hand movement is required to select controls, then control selection accuracy is high, but user convenience deteriorates as the user moves during viewing
Solution Approach 1:
The system performs preliminary action by predicting the user's intended control selection based on hand movement trajectory and pre-positioning the target control along the predicted path. This allows the user to select controls with a broader range of motion rather than requiring precise placement, maintaining selection accuracy while improving convenience.
Solution Approach 2:
The system implements feedback by continuously monitoring hand position and dynamically adjusting control placement based on real-time trajectory data. This closed-loop feedback mechanism ensures that controls remain accessible throughout the user's movement while maintaining precise selection capability.
3Stability of the object's composition
If controls remain static on the screen, then the user interface is simple and stable, but it requires precise user movement to select controls which becomes inconvenient as the user moves
Solution Approach 1:
The patent introduces dynamic adaptation to the otherwise static interface by implementing continuous hand tracking and automatic control relocation. This dynamic element allows the interface to maintain stability in its overall structure while adapting control positions in response to user movement, resolving the contradiction between interface stability and control accessibility.
Data Source
AI summary
Various systems and methods for adaptively modifying a user interface are described. One embodiment is a method performed in a multimedia playback system for adaptively modifying a user interface. The method comprises receiving, by the multimedia playback system, multimedia content and displaying the multimedia content. The method further comprises generating, by a user interface generator, one or more controls displayed in conjunction with the multimedia content, identifying, by an object detector, a target object in a field of view of a video capture device coupled to the multimedia playback system, and predicting, by a selection predictor, a next selection of one of the one or more controls based on a path defined by the target object. The method further comprises displaying, by the user interface generator, a virtual pointer representing the target object in a vicinity of the predicted next selection of the one or more controls.