@inproceedings{ yu:icip01,
                author          = "Liangyin Yu and Charles R. Dyer",
                title           = "Observer Motion Estimation and Control from Optical Flow",
                booktitle       = "Proc. Int. Conf. Image Processing",
                year            = 2001,
		pages		= {941--944},
                url		= "ftp://ftp.cs.wisc.edu/computer-vision/repository/PDF/yu.2001.icip.pdf" }