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ICIP
2000
IEEE
14 years 2 months ago
Low-Complexity Global Motion Estimation from P-Frame Motion Vectors for MPEG-7 Applications
In this contribution, we present an algorithm for lowcomplexity global motion estimation, that works with block-coded video (e.g. MPEG-2). A superimposed global motion model is fi...
Aljoscha Smolic, Michael Hoeynck, Jens-Rainer Ohm
ANTS
2010
Springer
262views Algorithms» more  ANTS 2010»
14 years 1 months ago
Short Bases of Lattices over Number Fields
Lattices over number elds arise from a variety of sources in algorithmic algebra and more recently cryptography. Similar to the classical case of Z-lattices, the choice of a nice,...
Claus Fieker, Damien Stehlé
CGF
2008
126views more  CGF 2008»
13 years 9 months ago
Results of a User Study on 2D Hurricane Visualization
We present the results from a user study looking at the ability of observers to mentally integrate wind direction and magnitude over a vector field. The data set chosen for the st...
Joel P. Martin, J. Edward Swan II, Robert J. Moorh...
ICPR
2008
IEEE
14 years 11 months ago
Learning motion patterns in crowded scenes using motion flow field
Learning typical motion patterns or activities from videos of crowded scenes is an important visual surveillance problem. To detect typical motion patterns in crowded scenarios, w...
Min Hu, Mubarak Shah, Saad Ali
CVPR
2007
IEEE
14 years 11 months ago
Shape Statistics for Image Segmentation with Prior
We propose a new approach to compute non-linear, intrinsic shape statistics and to incorporate them into a shape prior for an image segmentation task. Given a sample set of contou...
Guillaume Charpiat, Olivier D. Faugeras, Renaud Ke...