Endoscope Image Processing Apparatus for Clinical Finding Evaluation

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Solution Overview

Problem

Current medical imaging technologies, such as endoscope systems, can detect the occurrence of clinical findings but lack the capability to effectively evaluate them, limiting the efficiency of medical diagnosis.

Innovation Solution

An image processing apparatus that receives image signals from a body cavity, generates diagnostic images, detects feature values, identifies regions corresponding to clinical findings, performs level detection, and generates color-mapped images for display, allowing for both the detection and evaluation of clinical findings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If automated classification of clinical findings is performed, then diagnostic efficiency is improved, but the ability to evaluate the severity or level of clinical findings is insufficient

Engineering Contradiction:
Improvediagnostic efficiencyVSAvoidevaluation information of clinical findings
Core Design Contradiction:
ProductivityVSLoss of information

Solution Approach 1:

The diagnostic process is segmented into two distinct functional components: (1) automated classification of clinical findings types using pattern matching, and (2) separate evaluation of clinical finding levels using multiple feature values. This segmentation allows each component to specialize, maintaining high diagnostic efficiency while capturing comprehensive evaluation information.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system performs multiple functions through a unified diagnostic apparatus: it not only classifies the type of clinical findings (e.g., pit pattern types I, II, III) but also evaluates their severity levels (e.g., penetration depth). This multi-functionality ensures that both classification and evaluation are performed efficiently within the same system.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Measurement precision

If multiple feature values are calculated for level detection, then evaluation precision is improved, but computational complexity increases

Engineering Contradiction:
Improveevaluation precision of clinical findingsVSAvoidcomputational complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

Multiple feature values (color, shape, texture) are calculated and stored in advance during the image analysis phase, before the actual level detection is performed. This preliminary calculation allows the level detection to efficiently reference pre-computed features, improving evaluation precision without proportionally increasing real-time computational complexity.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

Different feature values are extracted from different local characteristics of the clinical finding regions: color features from spectral analysis, shape features from boundary detection, and texture features from spatial patterns. This local quality approach ensures that each feature captures specific aspects of the clinical findings, improving overall evaluation precision while organizing computational tasks by their specific purposes.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS10521904B2Image processing apparatus, operating method, and non-transitory computer readable medium
Publication Date: 2019.12.31 FUJIFILM CORP
  • US10521904B2 patent drawing
  • US10521904B2 patent drawing
  • US10521904B2 patent drawing

AI summary

A region identifier identifies a region within a diagnostic image corresponding to one of plural predetermined clinical findings according to a first feature value from a feature value detector. A level detector performs level detection of the region at one of plural levels associated with the clinical findings for evaluation of the clinical findings according to a second feature value from a feature value detector. A color mapped image generator generates a color mapped image by color mapping of the diagnostic image with a display color associated with respectively the clinical findings and chromaticity of the display color associated with the levels. A monitor display panel is caused to display the color mapped image by control of a display control unit. Preferably, the diagnostic image is an image generated by an endoscope. The color mapped image generator is included in a processing apparatus.