AI-based extraction and management of text and view information from 2D bridge engineering drawings

Research output: Contribution to book/Conference proceedings/Anthology/ReportConference contributionContributedpeer-review

Contributors

Abstract

As bridge infrastructure continues to age globally, the need for efficient maintenance and digital documentation becomes increasingly urgent. 2D engineering drawings remain a primary source of information for bridge assessment, yet extracting semantic content from these documents remains a manual, time-consuming task. This study proposes an AI-based method for automating the extraction and structuring of information from 2D bridge engineering drawings. The approach integrates YOLOv7-based object detection, Handprint-based OCR, and a post-processing pipeline to identify view regions, recognize textual content, and match view titles with corresponding views. The system outputs semantically annotated views, enabling the generation of machine-readable view directories. Experimental results demonstrate high accuracy in detecting views and recognizing both printed and handwritten text, with minimal manual input. This work contributes to digital workflows in bridge documentation and sets the foundation for integration into broader Bridge Information Modeling (BrIM) systems to support infrastructure lifecycle management.

Details

Original languageEnglish
Title of host publicationEG-ICE 2025: AI-Driven Collaboration for Sustainable and Resilient Built Environments Conference Proceedings.
Pages57-65
Number of pages9
ISBN (electronic)9781914241826
Publication statusPublished - Jul 2025
Peer-reviewedYes

External IDs

ORCID /0000-0003-2694-1776/work/189285600
ORCID /0000-0001-8735-1345/work/189289765
Scopus 105045833340

Keywords

Subject groups, research areas, subject areas according to Destatis

Keywords

  • Digitalization, Post-processing, Object detection, Bridge engineering drawings, Optical character recognition (OCR), Clustering