Touch-Sensitive Surface Segmentation for Medical Imaging Interaction
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Solution Overview
Problem
Current mouse and keyboard interfaces for medical imaging systems are inefficient and cause user fatigue due to limited hand and finger dexterity utilization, leading to repetitive stress issues and cognitive load from complex shortcuts.
Innovation Solution
A touch-sensitive surface divided into regions, each associated with distinct gestures that correspond to specific functions, providing a graphic overlay with tactile feedback to facilitate intuitive and efficient interaction with medical imaging software.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If mouse and keyboard interfaces are used for medical imaging systems, then commands can be invoked and text entry can be performed, but user fatigue increases and hand dexterity is not utilized
Solution Approach 1:
The touch-sensitive surface is divided into multiple regions, each associated with different gestures or functions. This segmentation allows users to perform operations with different parts of their hand or finger, distributing the interaction workload and reducing fatigue associated with repetitive mouse clicking.
Solution Approach 2:
The system transitions from two-dimensional mouse clicking to multi-dimensional touch gestures including sliding, tapping, pinching, and palm-based interactions. This dimensional expansion utilizes the full range of hand movements, transforming the interaction paradigm from point-based to surface-based control.
2Productivity
If keyboard shortcuts are used for medical imaging operations, then command execution speed increases, but cognitive load increases due to non-intuitive mappings
Solution Approach 1:
The system provides visual feedback by highlighting the active region on the touch-sensitive surface, making the current function clearly visible to the user. This eliminates the need to remember abstract keyboard shortcuts, as the visual feedback directly indicates which gesture will execute which function.
Solution Approach 2:
Different regions of the touch-sensitive surface are visually distinguished through color coding or visual indicators that correspond to their associated functions. This visual differentiation makes the interface self-explanatory, allowing users to intuitively understand which gestures trigger which operations without cognitive overhead.
3Device complexity
If a single touch-sensitive surface is used for all functions, then device complexity is reduced, but interaction precision for specific functions decreases
Solution Approach 1:
The touch-sensitive surface is segmented into multiple functional regions, each optimized for specific gestures or operations. This segmentation maintains the simplicity of a single unified surface while enabling precise gesture recognition for different functions through spatial differentiation.
Solution Approach 2:
Different regions of the touch-sensitive surface have different local properties or associations with specific gestures. Each region can be configured with unique characteristics that enhance the accuracy of gesture recognition for its intended function, such as different sensitivity thresholds or gesture type preferences.
Data Source
AI summary
An apparatus is provided that includes a graphic overlay or display for a touch-sensitive surface with which an object comes into contact. The touch-sensitive surface is divided into a plurality of regions each of a number of which is associated with a distinct set of one or more of the plurality of gestures, where the plurality of gestures are associated with a respective plurality of functions of a software application operable by a processor. According to this aspect, the graphic overlay or display visibly depicts the regions and a layout of the regions into which the touch-sensitive surface is divided. The apparatus may further include a touch-feedback interface configured to provide touch feedback indicative of the gesture associated with the respective region within which the touch-feedback interface is disposed.