Gaze-Controlled Text Document Creation with Dwell-Time Filtering
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Solution Overview
Problem
Current eye-tracking interfaces for text document creation and editing are inefficient due to reliance on mouse emulation, leading to reduced visual input potential, unintentional gaze movements, user fatigue, and high error rates, particularly for users with disabilities who struggle with accurate gaze control on small screen objects.
Innovation Solution
A method and apparatus utilizing eye-tracking devices for fast cursor positioning, incorporating a filtering module to stabilize gaze coordinates, a Set Action module to manage graphic interfaces, and an Interface Management module for intuitive text document creation, saving, and formatting, allowing users to interact through natural and alternative gaze inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If mouse emulation is used for eye-tracking interfaces, then compatibility with existing applications is improved, but user fatigue and error rates increase
Solution Approach 1:
The patent replaces the mechanical mouse emulation system with a direct gaze-based control system. Instead of copying mouse behavior (mechanical substitution), the system directly maps gaze coordinates to cursor position and uses dwell time for selection, eliminating the need for users to emulate mouse movements with their eyes and reducing user fatigue while maintaining application compatibility.
Solution Approach 2:
The patent implements dynamic cursor positioning where the cursor moves to the gazed location after a dwell time period, rather than requiring continuous gaze tracking or manual control. This dynamic approach adapts to natural eye movement patterns and reduces the cognitive and physical load on users compared to static mouse emulation.
2Adaptability or versatility
If complete mouse emulation is implemented, then existing application compatibility is improved, but visual input potential is reduced
Solution Approach 1:
The patent substitutes the mouse emulation paradigm with a gaze-native interaction model that preserves visual input potential. By directly utilizing gaze coordinates and dwell time rather than emulating mouse behavior, the system maintains full visual input capabilities while achieving compatibility with existing applications through standardized control commands.
3Area of stationary object
If small screen objects are used for precise control, then screen real estate is optimized, but gaze control accuracy decreases
Solution Approach 1:
The patent applies preliminary action by requiring a dwell time period before executing a selection or command. This preliminary phase allows the system to accumulate gaze data and determine when the user has intentionally focused on a target, compensating for the reduced accuracy when controlling small screen objects and enabling precise control without requiring larger interface elements.
4Device complexity
If traditional eye-tracking interfaces are used, then implementation simplicity is maintained, but productivity and interaction speed decrease
Solution Approach 1:
The patent uses dwell time as a preliminary action threshold that triggers commands automatically once the gaze remains stable on a target for the specified duration. This approach maintains implementation simplicity by using a single configurable parameter while dramatically improving productivity, as users can interact with the system using natural eye movements without requiring manual confirmation or complex gesture sequences.
Data Source
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AI summary
The method and the apparatus object of present invention refers to a system and A method that create, save and format text documents using a device with gaze control and a system of quick positioning of the cursor. The present invention provides a faster interaction and requires a minimum effort with respect to the state of the art interfaces.