47 search results - page 7 / 10 » Phase Field Models and Higher-Order Active Contours |
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Active contours, or snakes, are computer-generated curves that move within images to find object boundaries. Its 3D version is often known as deformable models or active surfaces ...
ISBI
2008
IEEE
14 years 8 months ago
2008
IEEE
Four-dimensional ultrasound based on matrix phased array transducers can capture the complex 4D cardiac motion in a complete and real-time fashion. However, the large amount of in...
SDM
2010
SIAM
13 years 9 months ago
2010
SIAM
We present a method for unsupervised discovery of abnormal occurrences of activities in multi-dimensional time series data. Unsupervised activity discovery approaches differ from ...
ICCV
2001
IEEE
14 years 9 months ago
2001
IEEE
Several geometric active contour models have been proposed for segmentation in computer vision. The essential idea is to evolve a curve (in 2D) or a surface (in 3D) under constrai...
ICIP
2005
IEEE
14 years 9 months ago
2005
IEEE
Signal processing using over-complete representations has been an active research field in recent years. In this article, we study the following two related problems: (1) given tw...