DocumentCode :
3056240
Title :
Determining motion of nonrigid objects by active tubes
Author :
Takahata, Minoru ; Imai, Masakazu ; Tsuji, Saburo
Author_Institution :
Dept. of Syst. Eng., Osaka Univ., Japan
fYear :
1992
fDate :
30 Aug-3 Sep 1992
Firstpage :
647
Lastpage :
650
Abstract :
Analysis of motion of nonrigid objects in image sequences is an important and difficult problem in computer vision. This paper presents a model named active tubes for this purpose. It analyzes the temporal context in a spatio-temporal solid using an energy minimizing model like the snakes model of M. Kass, A. Witkin and D. Terzopoulos (1988). Active tubes constitute accumulations of snakes along the time axis using the temporal context. An input image sequence should be handled as a single image solid. In spatio-temporal solids, a locus of the moving object constitutes a 3D region. This removes the problem of feature correspondence. The problem of extracting and tracking the motion of objects in an image sequence can be replaced by the problem of segmenting the spatio-temporal solid
Keywords :
image processing; pattern recognition; active tubes; computer vision; energy minimizing model; image sequences; motion determination; nonrigid objects; snakes; spatio-temporal solid; temporal context; Computer vision; Context modeling; Image analysis; Image motion analysis; Image segmentation; Image sequence analysis; Image sequences; Motion analysis; Solid modeling; Tracking;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Pattern Recognition, 1992. Vol.I. Conference A: Computer Vision and Applications, Proceedings., 11th IAPR International Conference on
Conference_Location :
The Hague
Print_ISBN :
0-8186-2910-X
Type :
conf
DOI :
10.1109/ICPR.1992.201644
Filename :
201644
Link To Document :
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