1825 search results - page 225 / 365 » Local Dimensionality Reduction |
116
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ICCV
2007
IEEE
16 years 5 months ago
2007
IEEE
This paper presents a technique for determining an object's shape based on the similarity of radiance changes observed at points on its surface under varying illumination. To...
128
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ICCV
2003
IEEE
16 years 5 months ago
2003
IEEE
We propose modeling images and related visual objects as bags of pixels or sets of vectors. For instance, gray scale images are modeled as a collection or bag of (X, Y, I) pixel v...
131
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ECCV
2002
Springer
16 years 5 months ago
2002
Springer
Abstract. Principal Component Analysis (PCA) is one of the most popular techniques for dimensionality reduction of multivariate data points with application areas covering many bra...
124
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ICIP
2004
IEEE
16 years 5 months ago
2004
IEEE
In this paper, we present a robust method for estimating the model parameters in a mixture of probabilistic principal component analyzers. This method is based on the Stochastic v...
146
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ICIP
2004
IEEE
16 years 5 months ago
2004
IEEE
To support real-time tracking of objects in video sequences, there has been considerable effort directed at developing optical flow and general motion-based image segmentation alg...