141 search results - page 23 / 29 » Unsupervised Image Classification with a Hierarchical EM Alg... |
CVPR
2009
IEEE
15 years 2 months ago
2009
IEEE
Scalable image retrieval systems usually involve hierarchical quantization of local image descriptors, which produces a visual vocabulary for inverted indexing of images. Although ...
DSP
2008
13 years 7 months ago
2008
In this work, we propose to improve the neighboring relationship ability of the Hidden Markov Chain (HMC) model, by extending the memory lengthes of both the Markov chain process ...
ICIP
2010
IEEE
13 years 5 months ago
2010
IEEE
This paper deals with segmentation of the lung tissues from low dose CT (LDCT) scans of the chest. Goal is correct segmentation as well as maintaining the details of the lung regi...
KDD
2006
ACM
14 years 8 months ago
2006
ACM
Principal component analysis (PCA) has been extensively applied in data mining, pattern recognition and information retrieval for unsupervised dimensionality reduction. When label...
CVPR
2008
IEEE
14 years 9 months ago
2008
IEEE
High-level generative models provide elegant descriptions of videos and are commonly used as the inference framework in many unsupervised motion segmentation schemes. However, app...