2D 3D Image Registration via Transformation Plane Projection
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Solution Overview
Problem
Current methods for registering 2D images with 3D volume data are cumbersome and time-consuming for users, often requiring iterative corrections and limited in their range of use due to technical restrictions.
Innovation Solution
A method and system that aligns a frame of reference by projecting transformation directions onto 2D images, allowing minimal and predictable changes in the other image view, enabling registration without iterative corrections by limiting movements to specific axes, such as up, down, forward, and backward, and translating the frame of reference within a transformation plane perpendicular to the image plane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual registration with iterative multi-step procedure is used, then registration accuracy can be achieved, but the process becomes time-consuming and cumbersome for the user
Solution Approach 1:
The system pre-defines transformation directions (first and second projection directions) and transformation planes before the registration process begins. These predefined elements guide the frame of reference alignment, eliminating the need for iterative manual adjustments while ensuring accurate registration results.
Solution Approach 2:
The invention introduces a transformation plane as an intermediary element that mediates between the 2D image plane and the 3D volume frame of reference. By projecting transformation directions onto this intermediate plane, the system simplifies the complex registration task into straightforward directional transformations, reducing both time and user effort.
2Adaptability or versatility
If frame of reference can move freely in all directions, then comprehensive alignment is possible, but the changes in other image views become unpredictable and require iterative corrections
Solution Approach 1:
The invention segments the frame of reference movement into distinct, predefined transformation directions (first projection direction and second projection direction). Each direction corresponds to a specific transformation plane, allowing independent control along each axis without affecting others, thus making movements predictable across different image views.
Solution Approach 2:
The system introduces transformation planes as an additional dimensional framework. Instead of allowing arbitrary 3D movement that affects all views simultaneously, the invention constrains movements to specific planes (first transformation plane and second transformation plane), making the relationship between frame movements and image view changes predictable and intuitive.
Data Source
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AI summary
The present invention relates to interactive registration of 2D images with 3D volume data, and in particular relates to the registration of two 2D images with 3D volume data. In order to provide 2D/3D registration with a facilitated workflow for the user, an example of a method is provided comprising the steps of providing (110) 3D volume data (112) of an object, comprising a frame of reference; defining (114) a transformation plane (116) in relation to the 3D volume data perpendicular to the image plane of the first image; aligning the frame of reference with the second 2D image, wherein at least one alignment interactin value (128) is projected (130) on the transformation plane to determine (134) at least one transformed interaction value (132); and translating (136) the frame of reference with the at least one transformed interaction value.