Intensity-Guided Interactive Measurement for Medical Imaging
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Solution Overview
Problem
Conventional methods for measuring features in medical images rely on user visual estimation, which is subjective and prone to variability, and are not effective for low-resolution images, leading to inaccurate and inconsistent results.
Innovation Solution
An intensity-guided interactive measurement tool (IGIMT) that displays images with varying intensities, allows users to define analysis lines, generates intensity graphs, and identifies points of interest to measure distances and sizes, using interpolation schemes for smoother graphs and automatic snapping to pre-identified points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If user visual estimation is used for measurement, then the measurement process is simple and quick, but the accuracy and reliability of the measurement results deteriorate due to subjectivity and user variability
Solution Approach 1:
The patent replaces the mechanical/visual estimation process with an automated computer-based system that uses image processing algorithms to objectively identify anatomical landmarks and calculate measurements, eliminating user subjectivity while maintaining measurement speed
Solution Approach 2:
The system performs self-measurement by automatically detecting features and calculating distances without requiring user intervention for each measurement, thereby improving both accuracy and efficiency simultaneously
2Ease of operation
If conventional measurement tools are used, then the operation is straightforward, but the measurement reliability deteriorates due to dependence on user acuity and judgment
Solution Approach 1:
The system replaces manual visual assessment with automated image processing that consistently applies the same measurement algorithms to all images, ensuring reliable and reproducible results while maintaining ease of use through automated processing
Solution Approach 2:
The system transforms subjective visual estimates into objective numerical measurements by analyzing image intensity profiles and automatically identifying anatomical landmarks based on standardized criteria, thereby improving reliability
3Device complexity
If visual estimation methods are used, then no additional equipment is needed, but the measurement precision deteriorates for low-resolution images
Solution Approach 1:
The system performs preliminary enhancement of image features by analyzing intensity profiles along scan lines and identifying characteristic patterns before making measurements, which improves precision even in low-resolution images without adding physical equipment
Solution Approach 2:
The patent introduces an intermediate processing step that analyzes image intensity data and generates enhanced representations of anatomical features, serving as a mediator between the raw low-resolution image and the final measurement to improve precision
Data Source
AI summary
A method is provided for measuring using images. The method includes displaying an image having varying intensities. The method also includes identifying an analysis line passing through at least one feature of the image. Further, the method includes displaying an intensity graph over the image. The intensity graph includes a first axis extending along the analysis line and a second axis corresponding to intensities of points of the image along the analysis line. The method also includes identifying points of interest along the analysis line based on the intensity graph. Also, the method includes measuring at least one distance between at least two of the points of interest.