说明：  ellipse detection using the hough transform 作者 H.K. Yuen, J. Illingworth and J. Kittler Department of Electronics and Electrical Engineering University of Surrey, Guildford。对霍夫变换检测检测椭圆的原理有一定的参考意义。
(ellipse detection using the hough transform Authors HK Yuen, J. Illingworth and J. Kittler Department of Electronics and Electrical Engineering University of Surrey, Guildford. Hough transform for ellipse detection Detect principle must have reference significance.)