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168
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CVPR
2007
IEEE
16 years 8 months ago
2007
IEEE
We present an unsupervised method for learning a hierarchy of sparse feature detectors that are invariant to small shifts and distortions. The resulting feature extractor consists...
168
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CVPR
2008
IEEE
16 years 8 months ago
2008
IEEE
Calibrating a network of cameras with non-overlapping views is an important and challenging problem in computer vision. In this paper, we present a novel technique for camera cali...
204
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CVPR
2008
IEEE
16 years 8 months ago
2008
IEEE
We propose a scheme to introduce directionality in the Random Walker algorithm for image segmentation. In particular, we extend the optimization framework of this algorithm to com...
181
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ECCV
2004
Springer
16 years 8 months ago
2004
Springer
We present a method for estimating intrinsic images from a fixed-viewpoint image sequence captured under changing illumination directions. Previous work on this problem reduces the...
168
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ECCV
2000
Springer
16 years 8 months ago
2000
Springer
In recent years several techniques have been proposed for modelling the low-dimensional manifolds, or `subspaces', of natural images. Examples include principal component anal...