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ISCAS
2008
IEEE
103views Hardware» more  ISCAS 2008»
16 years 22 days ago
Watermarking curves using 2D mesh spectral transform
— This paper presents a robust watermarking method for curves that uses informed-detection. To embed watermarks, the presented algorithm parameterizes a curve using the B-spline ...
Ji Young Kim, Dong-Hyuck Im, Hae-Yeoun Lee, Heung-...
CORR
2011
Springer
168views Education» more  CORR 2011»
15 years 25 days ago
Submodular meets Spectral: Greedy Algorithms for Subset Selection, Sparse Approximation and Dictionary Selection
We study the problem of selecting a subset of k random variables from a large set, in order to obtain the best linear prediction of another variable of interest. This problem can ...
Abhimanyu Das, David Kempe
VTC
2006
IEEE
16 years 10 days ago
Switching Between OSTBC and Spatial Multiplexing with Linear Receivers in Spatially Correlated MIMO Channels
— We present a low complexity adaptive transmission approach for spatially correlated MIMO channels. The proposed scheme adaptively switches between orthogonal space-time block c...
Antonio Forenza, Matthew R. McKay, Iain B. Colling...
ICC
2007
IEEE
146views Communications» more  ICC 2007»
16 years 19 days ago
Media Access Control with Spatial Correlation for MIMO Ad Hoc Networks
– MIMO (Multiple Input Multiple Output) is capable of offering several-fold increase in spectral efficiency over singleantenna systems through spatial processing. However, curren...
Bing Wen Ke, Ying Jun Zhang, Soung Chang Liew
SIBGRAPI
2005
IEEE
15 years 12 months ago
Reduction of Interband Correlation for Landsat Image Compression
We present a lossless compressor for multispectral images that exploits interband correlations. Each band is divided into blocks, to which a wavelet transform is applied. The wave...
Daniel G. Acevedo, Ana M. C. Ruedin