TH-DAIMS is a drawing renewal and management system which is based on binary image process. New techniques in TH-DAIMS 2.0, which are picking primitives from image data, smoothing edges of lines, mapping memory to hard disk for large drawings, adding Chinese characters to user interface, and making database management system suitable for both image and text data, are described.

Key words

Drawing understanding Drawing renewal system 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Foley, J. D. (1990) Computer Graphics Principles and Practice. Addison Vesley Publishing Company.Google Scholar
  2. Illingworth, J. and Kittler, J. (1988) A survey of the Hough transform. Computer Vision, Graphics & Image processing, 44, 87–116.CrossRefGoogle Scholar
  3. Li, X.Y. (1993) IMCAD—A Drawing Reading and Interactive Design System Based on Binary Image Process, in New Advances in CAD&CG (ed. Z.S.Tang), 809–814, International Academic Publishers.Google Scholar
  4. Nagasamy, V. (1990) Engineering Drawing Processing and Vectorization System. Computer Vision, Graphics & Image Processing.Google Scholar
  5. Parker, J. R. (1988) Extraction Vectors From Raster Images. Computer and Graphics, 12(1) , 75–79.CrossRefGoogle Scholar

Copyright information

© IFIP International Federation for Information Processing 1995

Authors and Affiliations

  • Xinyou Li
    • 1
  • Zesheng Tang
    • 1
  • Hanwen Huang
    • 1
  1. 1.CAD centerTsinghua UniversityBeijing 100084P.R. China

Personalised recommendations