Cursor Control via Vision Tracking for Multi-Display Systems
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Solution Overview
Problem
Users of computer systems with multiple display regions, particularly in medical imaging applications, face inefficiencies and potential injury from repetitive large-scale movements required to control cursors between different displays, as current vision tracking techniques fail to provide precise and efficient cursor control for both small and large movements.
Innovation Solution
A computer system incorporating a user input unit, vision tracking unit, and cursor control unit that determines the user's view direction to seamlessly switch the cursor between display regions based on movement and view-direction signaling, allowing the cursor to maintain continuity and precision across displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single pointing device is used to control cursor across multiple display regions, then the system maintains simplicity in device configuration, but the user must undertake repeated large-scale movements between displays which increases time consumption and risk of injury
Solution Approach 1:
The patent replaces the mechanical pointing device (mouse) with a vision tracking system that uses optical sensors to detect eye movements. This substitution allows the cursor to be controlled by natural eye movements rather than manual mouse operations, eliminating the need for repeated large-scale mechanical movements while maintaining system simplicity.
Solution Approach 2:
The patent introduces an intermediary mapping system that creates a correspondence between eye movement directions and cursor positions across multiple displays. This intermediary layer translates natural eye movements into precise cursor control, allowing seamless transition between displays without manual intervention.
2Ease of operation
If vision tracking techniques are used to control cursor movements, then the ability to make large cursor movements between displays is improved, but precise cursor control is not generally possible
Solution Approach 1:
The patent segments the cursor control function into two distinct modes: eye movement tracking for large-scale display transitions and fine-mouse control for precise positioning within displays. This segmentation allows each control method to excel at its specific task, achieving both ease of operation and measurement precision.
Solution Approach 2:
The patent implements a dynamic control system that automatically switches between eye-tracking mode and mouse-control mode based on the operational context. When transitioning between displays, eye tracking provides ease of movement; when positioned within a display, mouse control provides precision. This dynamic adaptation resolves the contradiction between ease of operation and precision.
Data Source
AI summary
Certain embodiments provide a computer system for controlling the movement of a displayed cursor, the computer system comprising: a first display region; a second display region; a user input unit configured to measure movements made by a user in association with the user input unit and to output corresponding movement signaling; a vision tracking unit configured to determine a direction in which a user is looking and to output corresponding view-direction signaling; and a cursor control unit arranged to select one of the first display region and the second display region as a selected display region based on the view-direction signaling associated with the vision tracking unit and to control a cursor to move within the selected display region based on the movement signaling associated with the user input unit.