Raster to vector conversion of construction engineering drawings

Jiqiang Song, Feng Su, Heng Li, Shijie Cai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)


A novel method for vectorizing construction engineering drawing images is presented. The method consists of two algorithms: a seed-segment based line-network vectorization algorithm and a knowledge-supported vectorization algorithm designed specially for construction engineering drawings. The seed-segment based algorithm converts a line wholly and a line network globally so that both the quality and speed are satisfied. The knowledge supported vectorization algorithm takes full use of the features and rules of construction engineering drawings to solve the difficulties of vectorization caused by noises and degradations. The performance of this method is discussed at the end of this paper.
Original languageEnglish
Pages (from-to)597-605
Number of pages9
JournalAutomation in Construction
Issue number5
Publication statusPublished - 1 Aug 2002


  • Construction engineering drawing
  • Knowledge supported vectorization
  • Line network vectorization
  • Seed-segment based line conversion

ASJC Scopus subject areas

  • Civil and Structural Engineering

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