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Motion Tracking with an Active Camera
May 1994 (vol. 16 no. 5)
pp. 449-459

This paper describes a method for real-time motion detection using an active camera mounted on a pan/tilt platform. Image mapping is used to align images of different viewpoints so that static camera motion detection can be applied. In the presence of camera position noise, the image mapping is inexact and compensation techniques fail. The use of morphological filtering of motion images is explored to desensitize the detection algorithm to inaccuracies in background compensation, Two motion detection techniques are examined, and experiments to verify the methods are presented. The system successfully extracts moving edges from dynamic images even when the pan/tilt angles between successive frames are as large as 3.

[1] P. Allen, B. Yoshimi, and A. Timcenko, "Real-time visual servoing," Tech. Rep. CUCS-035-90, Columbia Univ., Pittsburgh, PA, Sept. 1990.
[2] Y. Aloimonos, "Purposive and qualitative active vision," inProc. DARPA Image Understanding Workshop, Pittsburgh, PA, 1990, pp. 816-828.
[3] Y. Aloimonos and d. Tsakiris, "On the mathematics of visual tracking,"Image Vision Computing, vol. 9, no. 4, pp. 235-251, 1991.
[4] Y. Aloimonos, I. Weiss, and A. Bandopadhay, "Active vision,"Int. J. Comput. Vision, vol. 2, pp. 333-356, 1988.
[5] R. Bajcsy, "Active perception,"Proc. IEEE, vol. 76, pp. 996-1005, Aug. 1988.
[6] D. H. Ballard and C. M. Brown,Computer Vision. Englewood Cliffs, NJ: Prentice-Hall, 1982.
[7] B. Bhanu and W. Burger, "Qualitative understanding of scene dynamics for moving robots,"Int. J. Robotics Research, vol. 9, no. 6, pp. 74-90, 1990.
[8] A. J. Bray, "Tracking objects using image disparities,"Image Vision Comput., vol. 8, no. 1, pp. 4-9, 1990.
[9] R. A. Brooks,Model-based Computer Vision. Ann Arbor, MI: UMI Research Press, 1984.
[10] J. H. Duncan and T. C. Chou, "Temporal edges: The detection of motion and the computation of optical flow," inProc. Second Int. Conf. Comput. Vision(Tampa, FL), 1988, pp. 374-382; CAR-TR-362, Univ. of Maryland, Cent. Automat. Res. May 1988.
[11] C. Fermueller and Y. Aloimonos, "Tracking facilitates 3-D motion estimation,"Biological Cybern., vol. 67, pp. 259-268, 1992.
[12] D. B. Gennery, "Tracking known three-dimensional objects," inProc. AAAI 2nd Nat. Conf. on A.I., Pittsburgh, PA, 1982, pp. 13-17.
[13] B. K. P. Horn and B. G. Schunk, "Determining optic flow,"Artificial Intell., vol. 17, pp. 185-203, 1981.
[14] K. Kanatani, "Camera rotation invariance of image characteristics,"Comput. Vision Graphics Image Processing, vol. 39, pp. 328-354, 1987.
[15] H. G. Longuet-Higgins and K. Prazdny, "The interpretation of a moving retinal image," inProc. Roy. Soc. London, B, vol. 208, pp. 385-397, 1980.
[16] D. G. Lowe, "Three-dimensional object recognition from single two-dimensional images,"Artificial Intell., vol. 31, 1987.
[17] P. Maragos, "Tutorial on advances in morphological image processing and analysis,"Opt. Eng., vol. 26, no. 7, pp. 623-632, July 1987.
[18] R. Nelson, "Qualitative detection of motion by a moving observer," inProc. IEEE Conf. on Comput. Vision Patt. Recogn.(Lahaina, HI), 1991, pp. 173-178.
[19] P. D. Picton, "Tracking and segmentation of moving objects in a scene," inProc. 3rd Int. Conf. Image Processing and its Applicat., Coventry, England, 1989, pp. 389-393.
[20] K. Prazdny, "Determining the instantaneous direction of motion from optic flow generated by a curvilinearly moving observer,"Comput. Vision Graphics, Image Processing, vol. 17, pp. 238-248, 1981.
[21] R. W. Roach and J. K. Aggarwal, "Computer tracking of objects moving in space,"IEEE Trans. Pattern Anal. Michine Intell., vol. PAMI-1, no. 2, pp. 127-135, 1979.
[22] R. J. Schalkoff and E. S. McVey, "A model and tracking algorithm for a class of video targets,"IEEE Trans. Pattern Anal. Machine Intell., vol. PAMI-4, no. 1, pp. 2-10, 1982.
[23] B. G. Schunck, "The image flow contraint equation,"Comput. Vision Graphics Image Proc., vol. 35, pp. 20-46, 1986.
[24] R. S. Stephens, "Real-time 3-D object tracking,"Image Vision Computing, vol. 8, no. 1, pp. 91-96, 1990.
[25] S. Ullman, "Analysis of visual motion by biological and computer system,"IEEE Comput., vol. 14, no. 8, pp. 57-49, 1981.
[26] B. Wilcox, D. B. Gennery, B. Bon, and T. Litwin, "Real-time model-based vision system for object acquisition and tracking,"SPIE, vol. 754, 1987.

Index Terms:
motion estimation; image sequences; cameras; edge detection; mathematical morphology; tracking; motion tracking; active camera; real time motion detection; pan-tilt platform; image mapping; static camera; morphological filtering; motion images; motion detection; moving edge extraction; dynamic images
Citation:
D. Murray, A. Basu, "Motion Tracking with an Active Camera," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 16, no. 5, pp. 449-459, May 1994, doi:10.1109/34.291452
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