4529 search results - page 268 / 906 » Position Based Cryptography |
148
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CVPR
2007
IEEE
16 years 8 months ago
2007
IEEE
Pattern variation is a major factor that affects the performance of recognition systems. In this paper, a novel manifold tangent modeling method called Discriminant Additive Tange...
166
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ICCV
1999
IEEE
16 years 8 months ago
1999
IEEE
Given video footage of a person's face, we present new techniques to automatically recover the face position and the facial expression from each frame in the video sequence. ...
200
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ICPR
2006
IEEE
16 years 7 months ago
2006
IEEE
In this paper, a robust technique is proposed to detect and track a set of twenty-eight prominent facial features under various facial expressions and face orientations in real-ti...
270
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GIS
2009
ACM
16 years 7 months ago
2009
ACM
A common problem in moving object databases (MOD) is the reconstruction of a trajectory from a trajectory sample (i.e., a finite sequence of time-space points). A typical solution...
175
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MOBIHOC
2003
ACM
16 years 6 months ago
2003
ACM
It is often useful to know the geographic positions of nodes in a communications network, but adding GPS receivers or other sophisticated sensors to every node can be expensive. W...