Computerising scanned engineering documents

Computerising scanned engineering documents

The paper presents an overview of techniques and algorithms for recognising scanned engineering images, with an emphasis on those for graphic element vectorisation and interpretation. Some background knowledge and basic issues regarding computerising scanned engineering documents are presented. Rast...

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Veröffentlicht in:Computers in industry 2000, Vol.42 (1), p.59-71
Hauptverfasser: Xu, X.William, Bai, Y.Brian
Format: Artikel
Sprache:eng
Schlagworte:
Algorithms
CAD
Computer aided design
Electronic documents
Engineering drawings
Image processing
Image processing systems
Raster
Studies
Vector
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creator Xu, X.William
Bai, Y.Brian
description The paper presents an overview of techniques and algorithms for recognising scanned engineering images, with an emphasis on those for graphic element vectorisation and interpretation. Some background knowledge and basic issues regarding computerising scanned engineering documents are presented. Raster-to-vector conversion approaches are classified as interactive, semi-automatic or automatic, and they are discussed, respectively, with references to some of commercialised software. Various thresholding, segmentation and vectorisation methodologies are also discussed. A specific effort is made to provide information for evaluating and comparing techniques in the recent literature. Both strengths and weaknesses of these algorithms have been discussed, and the future trend envisaged.
doi_str_mv 10.1016/S0166-3615(99)00058-5
format Article
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source Elsevier ScienceDirect Journals
subjects Algorithms
CAD
Computer aided design
Electronic documents
Engineering drawings
Image processing
Image processing systems
Raster
Studies
Vector
title Computerising scanned engineering documents
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