Endoscopic Lesion Heat Map Visualization Without View Obstruction

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Solution Overview

Problem

Existing endoscopic examination technologies struggle to indicate the position and size of lesions without superimposing figures on the image, which can obscure the view.

Innovation Solution

An endoscopic examination support apparatus that includes a video acquisition means, lesion detection means, heat map generation means, and display control means to detect lesions, generate a heat map indicating lesion possibility by color, and display the lesion position and size on the endoscopic video frame without blocking the image.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If figures or markers are superimposed on the endoscopic image to indicate lesion position and size, then the lesion information can be clearly indicated, but the endoscopic image becomes difficult to see

Engineering Contradiction:
Improvelesion position and size informationVSAvoidimage visibility
Core Design Contradiction:
Loss of informationVSIllumination intensity

Solution Approach 1:

The patent extracts the essential lesion information (position and size) from the visual overlay and presents it in a separate data format (table or numerical display) rather than superimposing figures on the image. This separates the information delivery from the visual field, maintaining image clarity while providing accurate lesion data.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces an intermediary processing step that detects lesions and generates separate information displays rather than directly overlaying visual markers. This intermediary layer converts visual detection into structured data presentation, avoiding the need for superimposed figures that would obscure the image.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Illumination intensity

If no figures or markers are superimposed on the endoscopic image, then the image remains clear and visible, but the position and size of the lesion cannot be indicated

Engineering Contradiction:
Improveimage visibilityVSAvoidlesion position and size information
Core Design Contradiction:
Illumination intensityVSLoss of information

Solution Approach 1:

The patent replaces the mechanical/visual system of superimposed figures and markers with an information processing system that detects lesions and displays their characteristics in tabular or numerical form. This substitution maintains image visibility while providing precise lesion information through data presentation rather than visual overlay.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the parameter of information presentation from visual spatial markers to numerical or tabular data. Instead of using graphical parameters (overlapping shapes and markers), the system uses data parameters (coordinates, size measurements) to convey lesion information without affecting image visibility.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If figures are superimposed to indicate lesion position and size, then the lesion can be clearly identified, but part of the endoscopic image is blocked

Engineering Contradiction:
Improvelesion identification accuracyVSAvoidvisible image area
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent extracts lesion identification information from the visual domain and presents it in the data domain. By taking out the position and size information from the image overlay and presenting it separately, the system maintains full image visibility while ensuring reliable lesion identification through structured data presentation.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent transitions the lesion information from the two-dimensional visual overlay space to a separate information space (table or numerical display). This dimensional change allows the same information to be conveyed without occupying visual space on the endoscopic image, preserving the full viewing area.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS12551090B2Endoscopic examination support apparatus, endoscopic examination support method, and recording medium
Publication Date: 2026.02.17 NEC CORP
  • US12551090B2 patent drawing
  • US12551090B2 patent drawing
  • US12551090B2 patent drawing

AI summary

In the endoscopic examination support apparatus, the image acquisition means acquires an endoscopic video captured by an endoscope. The lesion detection means detects a lesion candidate from the endoscopic video. The heat map generation means generates a heat map indicating a possibility of lesion of the lesion candidate in the endoscopic video by a color. The display control means displays a position of a lesion on a frame of the endoscopic video based on the lesion candidate and the heat map.