The use of complex transform for extraction circular arcs and straight lines in engineering drawings
Yan Jiafeng, Ban Cen Cao Qing, T. Agui, T. Nagao · 2003
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.>