2007 search results - page 179 / 402 » SPECTRUM |
166
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MASS
2010
15 years 2 months ago
2010
Abstract--Spread spectrum techniques (e.g., Frequency Hopping (FH), Direct Sequence Spread Spectrum (DSSS)) have been widely used for anti-jamming wireless communications. Such tec...
164
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TSP
2010
14 years 10 months ago
2010
Effective spectrum sensing is a critical prerequisite for multi-channel cognitive radio (CR) networks, where multiple spectrum bands are sensed to identify transmission opportuniti...
145
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CVPR
1998
IEEE
16 years 6 months ago
1998
IEEE
We propose a new image retrieval method based on human perceptual clustering of color images. This color clustering produces for each image a small set of representative colors wh...
165
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CVPR
2004
IEEE
16 years 6 months ago
2004
IEEE
Linear Discriminant Analysis (LDA) is popular feature extraction technique for face recognition. However, it often suffers from the small sample size problem when dealing with the...
142
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CVPR
2008
IEEE
16 years 6 months ago
2008
IEEE
In this paper, we propose a partially-blurred-image classification and analysis framework for automatically detecting images containing blurred regions and recognizing the blur ty...