Abnormal Part Display Using Point Clouds and Photo Brightness

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Solution Overview

Problem

Existing methods for specifying abnormal parts in objects using laser ranging data lack sufficient color information, leading to poor visibility and difficulty in intuitively understanding displayed data.

Innovation Solution

Integrate laser ranging data with photograph images on a shared screen, controlling the display to enhance visibility by selecting images based on brightness, weather, and time of capture, ensuring the integration of relevant color information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If point group data from laser ranging apparatus is displayed alone, then shape information is provided, but color information is scarce and visibility is poor

Engineering Contradiction:
Improvecolor informationVSAvoidvisibility
Core Design Contradiction:
Loss of informationVSIllumination intensity

Solution Approach 1:

The patent combines point group data from the laser ranging apparatus with photograph images from the photographing apparatus into a single integrated display. The point group data and photograph image are superimposed or displayed together, allowing users to simultaneously view both shape information (from point group data) and color information (from photograph image), thereby resolving the information loss and visibility issues.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If multiple photograph images are stored for different conditions, then color information availability improves, but selecting the appropriate image becomes complex

Engineering Contradiction:
Improveimage selection flexibilityVSAvoidimage selection process
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The control apparatus uses brightness information as feedback to automatically select the most appropriate photograph image for display. When point group data is acquired, the control apparatus refers to the brightness information associated with stored photograph images and selects the image with suitable brightness levels, eliminating the need for manual selection and simplifying the user interface while maintaining adaptability to different lighting conditions.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If photograph images with varying brightness are displayed, then adaptability to different conditions improves, but visibility and user understanding deteriorate

Engineering Contradiction:
Improvecondition adaptabilityVSAvoiddisplay brightness
Core Design Contradiction:
Adaptability or versatilityVSIllumination intensity

Solution Approach 1:

The control apparatus changes the selection parameter (brightness level) when choosing photograph images for display. By evaluating the brightness information of stored images and selecting only those with appropriate brightness levels, the system ensures that displayed images have optimal visibility and are easy to understand, while still adapting to different acquisition conditions through selective display rather than displaying all available images.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3879260B1Abnormal part display apparatus, abnormal part display system, abnormal part display method, and abnormal part display program
Publication Date: 2026.04.01 NEC CORP
  • EP3879260B1 patent drawingFigure 1
  • EP3879260B1 patent drawingFigure 2
  • EP3879260B1 patent drawingFigure 3

AI summary

An abnormal part display apparatus, an abnormal part display system, an abnormal part displaying method, and an abnormal part displaying program capable of improving visibility of an abnormal part in an object are provided. An abnormal part display apparatus 11 according to the present disclosure includes an acquisition unit 111 configured to acquire point group data of an object obtained by measuring the object by using a laser ranging apparatus 12, and a photograph image of the object obtained by photographing the object by using a photographing apparatus 13, a display unit 112 configured to display the point group data and the photograph image on a predetermined screen, and a control unit 113 configured to control the point group data and the photograph image to be displayed in the display unit 112.