14 citations · 74 across the 38 of their papers we have counts for
4 papers · 1 filter
Directional Bilateral Filters
Manasij Venkatesh, Chandra Sekhar Seelamantula
We propose a bilateral filter with a locally controlled domain kernel for directional edge-preserving smoothing. Traditional bilateral filters use a range kernel, which is responsi…
A Risk Minimization Framework for Channel Estimation in OFDM Systems
Karthik Upadhya, Chandra Sekhar Seelamantula, K. V. S. Hari
We address the problem of channel estimation for cyclic-prefix (CP) Orthogonal Frequency Division Multiplexing (OFDM) systems. We model the channel as a vector of unknown determini…
-K-SVD: A Robust Dictionary Learning Algorithm With Simultaneous Update
Subhadip Mukherjee, Rupam Basu, Chandra Sekhar Seelamantula
We develop a dictionary learning algorithm by minimizing the distortion metric on the data term, which is known to be robust for non-Gaussian noise contamination. The prop…
A Split-and-Merge Dictionary Learning Algorithm for Sparse Representation
Subhadip Mukherjee, Chandra Sekhar Seelamantula
In big data image/video analytics, we encounter the problem of learning an overcomplete dictionary for sparse representation from a large training dataset, which can not be process…