Cursor-Mediated Vessel Contour Interaction System
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Solution Overview
Problem
Current X-ray imaging technologies face challenges in providing accurate and intuitive interaction with vessel images, particularly in medical settings where high precision is required for contour delineation and correction, due to limitations with touch interfaces that obscure the view and require finger-based interactions.
Innovation Solution
A device and method that includes an interface unit with a display and processing unit to determine vessel contours, allow user input for correction, and move indicated contour portions based on drag direction, ensuring accurate interaction by maintaining visibility and allowing for deformation and size adjustment within predefined angle and distance ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If touch interfaces are used for vessel contour interaction, then ease of operation is improved, but measurement precision deteriorates due to finger-based interactions
Solution Approach 1:
The patent introduces a cursor as an intermediary element that mediates between the user's touch input and the vessel contour. Instead of directly manipulating the contour with a finger, the user controls a cursor that can be precisely positioned and manipulated, which then interacts with the contour. This intermediary allows coarse touch gestures to be translated into fine-grained control for precise medical imaging tasks.
2Ease of operation
If touch interfaces are used for vessel contour interaction, then ease of operation is improved, but manufacturing precision deteriorates due to finger-based interactions
Solution Approach 1:
The cursor acts as a mediator that enables precise contour delineation while maintaining ease of operation. The user interacts with the cursor through intuitive touch gestures, and the cursor translates these gestures into precise movements along the vessel contour, ensuring accurate medical imaging results.
Solution Approach 2:
The system dynamically adapts the cursor behavior based on the interaction context. The cursor can be attracted to the vessel contour, snap to specific points, or follow the contour path, providing dynamic assistance that enhances precision while maintaining ease of use throughout the contour delineation process.
3Ease of operation
If fixed touch interfaces are used next to operation table, then ease of operation is improved, but object-affected harmful factors worsen due to occlusion of view
Solution Approach 1:
The patent replaces the physical touch interface with a wireless or integrated display interface that does not require a large physical tablet positioned next to the operation table. The cursor-based interaction can be implemented through various input methods that do not occlude the surgical field, substituting the mechanical presence of a fixed touch interface with a more flexible interaction system.
Data Source
AI summary
The present invention relates to a device for interacting with vessel images, the device (14) comprising: an interface unit (22); a processing unit (20); wherein the interface unit (22) comprises: a display (21); and an input setup (23); wherein the display (21) is configured to display a vessel image (24); wherein the input setup (23) is configured to receive a user input in relation to the vessel image (24); wherein the processing unit (20) is configured to: determine, for at least one vessel (26) in the vessel image (24), a vessel contour (30); determine, from the user input, an identifier position (36) in the vessel image (24); indicate at least a portion (38) of the vessel contour (30) in the vessel image (24), if the determined identifier position (36) is spaced apart from the vessel contour (30) by a distance (37) within a predefined distance range; determine, from the user input, a drag direction (42); and move the indicated portion (38) along the vessel contour (30) based on the determined drag direction (42).