Crack Line Length Computation via Continuous Image Analysis

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Solution Overview

Problem

Current methods for assessing crack lines in safety assessment target buildings are inefficient and inaccurate, as workers manually take pictures and create drawings, leading to inaccuracies in measuring crack line lengths.

Innovation Solution

A method using a worker terminal to analyze continuously captured close-up images of crack lines, generating shape information with high accuracy, and computing crack line lengths based on this information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a worker manually takes pictures and creates crack state drawings by referring to the pictures, then the inspection process can be completed, but the shape and size of the cracks are expressed inaccurately and the length of the crack line cannot be accurately measured

Engineering Contradiction:

Improvecrack line length measurement accuracyVSAvoidmanual inspection process complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces the manual mechanical process of creating crack state drawings with automated image processing technology. The worker terminal captures images of crack lines, and the processor automatically generates accurate crack state drawings and measures crack line lengths, eliminating manual drawing operations and significantly improving measurement precision.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables self-service measurement where the worker terminal automatically processes captured images to generate crack state drawings and calculate crack line lengths without requiring manual intervention for drawing creation. The processor autonomously performs image analysis, shape extraction, and length measurement, allowing the inspection system to serve itself.

Inventive Principle:

Principle #25Self-service

2Productivity

If a worker separately creates crack state drawings by referring to pictures taken on the cracked area, then crack information can be recorded, but it takes separate time and effort and reduces inspection efficiency

Engineering Contradiction:

Improveinspection efficiencyVSAvoidtime for creating crack state drawings

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent merges the image capture process with the crack state drawing creation process. The worker terminal captures images and the processor simultaneously generates crack state drawings and measures crack line lengths from the same image data, eliminating the separate manual drawing creation step and significantly improving inspection efficiency.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The system performs preliminary image processing and crack line detection during the image capture phase. By pre-processing the images to extract crack line shapes and calculate lengths before final report generation, the system eliminates the need for time-consuming manual drawing creation afterward, thereby increasing productivity.

Inventive Principle:

Principle #10Preliminary action

3Measurement precision

If a worker moves around inside the building to take pictures of cracked areas, then inspection coverage can be achieved, but the accuracy of crack line length measurement is compromised due to manual drawing creation

Engineering Contradiction:

Improvecrack line length measurement accuracyVSAvoidinspection process simplicity

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The patent replaces the manual process of creating accurate crack state drawings with automated image processing. The worker terminal captures images during the inspection walkthrough, and the processor automatically generates precise crack line measurements and state drawings, maintaining ease of operation while dramatically improving measurement precision.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS20250117957A1Method for calculating length of crack line by using continuously captured images of crack line in building subject to safety diagnosis, and worker terminal having installed thereon program for executing method for calculating length of crack line by using continuously captured images of crack line in building subject to safety diagnosis

Publication Date: 2025.04.10 HANSTYLE ENG CO LTD

AI summary

Provided are a method for computing a crack line length using continuous photographic images of a crack line in a safety assessment target building and a worker terminal installed with a program for executing the method for computing a crack line length using continuous photographic images of a crack line in a safety assessment target building. Provided is implemented through processes which are performed by the worker terminal and include: analyzing photographic images continuously captured while a worker moves along a crack line present in an inspection target area in a photographing space, which is a space where the worker performs photography, to generate shape information of the crack line; and computing a length of the crack line based on the shape information of the crack line.