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The use of complex transform for extraction circular arcs and straight lines in engineering drawings

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4 Author(s)
Yan Jiafeng ; Beijing Civil & Archit. Eng. Inst., China ; Ban Cen Cao Qing ; T. Agui ; T. Nagao

A new algorithm is proposed by which the circular arcs or straight lines in the original drawings are transformed into straight lines in a U-V complex plane. After these parameters of straight lines in the U-V plane have been extracted, circular arcs and straight lines in the original drawings are recognized. The results show that the extraction time and memory storage are reduced

Published in:

Proceedings., 11th IAPR International Conference on Pattern Recognition. Vol. III. Conference C: Image, Speech and Signal Analysis,

Date of Conference:

30 Aug-3 Sep 1992