Title :
The use of complex transform for extraction circular arcs and straight lines in engineering drawings
Author :
Jiafeng, Yan ; Ban Cen Cao Qing ; Agui, Takeshi ; Nagao, Tomoham
Author_Institution :
Beijing Civil & Archit. Eng. Inst., China
fDate :
30 Aug-3 Sep 1992
Abstract :
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
Keywords :
engineering graphics; feature extraction; image recognition; transforms; U-V complex plane; circular arcs; complex transform; engineering drawings; feature extraction; image recognition; straight lines; Engineering drawings; Equations; Image recognition; Laboratories; Pixel; Transforms;
Conference_Titel :
Pattern Recognition, 1992. Vol.III. Conference C: Image, Speech and Signal Analysis, Proceedings., 11th IAPR International Conference on
Conference_Location :
The Hague
Print_ISBN :
0-8186-2920-7
DOI :
10.1109/ICPR.1992.201982
