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CVPR
2011
IEEE
9 years 8 months ago
Tag Localization with Spatial Correlations and Joint Group Sparsity
Nowadays numerous social images have been emerging on the Web. How to precisely label these images is critical to image retrieval. However, traditional image-level tagging methods...
Yang Yang, Yi Yang, Zi Huang, Heng Tao Shen, Feipi...
ICDAR
2003
IEEE
10 years 9 months ago
Wavelet Diffusion for Document Image Denoising
To distinguish image features from high level noises, we propose to exploit the spatial correlations between wavelet coefficients by replacing the thresholding process with a dif...
Lixin Fan, Liying Fan, Chew Lim Tan
IPSN
2004
Springer
10 years 9 months ago
The impact of spatial correlation on routing with compression in wireless sensor networks
The efficacy of data aggregation in sensor networks is a function of the degree of spatial correlation in the sensed phenomenon. While several data aggregation (i.e., routing with...
Sundeep Pattem, Bhaskar Krishnamachari, Ramesh Gov...
GLOBECOM
2006
IEEE
10 years 10 months ago
Exploiting Spatio-Temporal Correlations in MIMO Wireless Channel Prediction
— We investigate prediction algorithms that exploit both temporal and spatial correlations in MIMO correlated narrowband fading wireless channels. We first derive the optimal tw...
Ian C. Wong, Brian L. Evans
ICC
2007
IEEE
146views Communications» more  ICC 2007»
10 years 10 months 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
ASPDAC
2009
ACM
143views Hardware» more  ASPDAC 2009»
10 years 10 months ago
Statistical modeling and analysis of chip-level leakage power by spectral stochastic method
In this paper, we present a novel statistical full-chip leakage power analysis method. The new method can provide a general framework to derive the full-chip leakage current or po...
Ruijing Shen, Ning Mi, Sheldon X.-D. Tan, Yici Cai...
VLSID
2005
IEEE
255views VLSI» more  VLSID 2005»
11 years 4 months ago
Estimation of Switching Activity in Sequential Circuits Using Dynamic Bayesian Networks
We propose a novel, non-simulative, probabilistic model for switching activity in sequential circuits, capturing both spatio-temporal correlations at internal nodes and higher ord...
Sanjukta Bhanja, Karthikeyan Lingasubramanian, N. ...
ICIP
2005
IEEE
11 years 5 months ago
Noise in imaging chains: correlations and predictions
Noise is an important factor in image quality. We analyze it in images produced by digital cameras. We show that, beyond the usual standard deviation measurement, spatial correlat...
Jerome Buzzi, Frederic Guichard
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