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  • 1986
  • Issue No. 5 - May
  • Abstract - An Investigation of Smoothness Constraints for the Estimation of Displacement Vector Fields from Image Sequences
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An Investigation of Smoothness Constraints for the Estimation of Displacement Vector Fields from Image Sequences
May 1986 (vol. 8 no. 5)
pp. 565-593
Hans-Hellmut Nagel, Fraunhofer-Institut für Informationsund Datenverarbeitung, Sebastian-Kneipp-Str. 12-14, 7500 Karlsruhe 1, West Germany; Fakultät für Informatik, Universität Karlsruhe, West Germany
Wilfried Enkelmann, Fachbereich Informatik, Universität Hamburg, Schlüterstr. 70, 2000 Hamburg 13, West Germany; Fraunhofer-Institut für Informationsund Datenverarbeitung, Sebastian-Kneipp-Str. 12-14,
A mapping between one frame from an image sequence and the preceding or following frame can be represented as a displacement vector field. In most situations, the mere gray value variations do not provide sufficient information in order to estimate such a displacement vector field. Supplementary constraints are necessary, for example the postulate that a displacement vector field varies smoothly as a function of the image position. Taken as a general requirement, this creates difficulties at gray value transitions which correspond to occluding contours. Nagel therefore introduced the ``oriented smoothness'' requirement which restricts variations of the displacement vector field only in directions with small or no variation of gray values. This contribution reports results of an investigation about how such an ``oriented smoothness'' constraint may be formulated and evaluated.
Citation:
Hans-Hellmut Nagel, Wilfried Enkelmann, "An Investigation of Smoothness Constraints for the Estimation of Displacement Vector Fields from Image Sequences," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 8, no. 5, pp. 565-593, May 1986, doi:10.1109/TPAMI.1986.4767833
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