4 papers
A spatio-spectral hybridization for edge preservation and noisy image restoration via local parametric mixtures and Lagrangian relaxation
Kinjal Basu, Debapriya Sengupta
This paper investigates a fully unsupervised statistical method for edge preserving image restoration and compression using a spatial decomposition scheme. Smoothed maximum likelih…
Spline Smoothing for Estimation of Circular Probability Distributions via Spectral Isomorphism and its Spatial Adaptation
Kinjal Basu, Debapriya Sengupta
Consider the problem when are distributed on a circle following an unknown distribution on . In this article we have consider the absolute general set-u…
Projected likelihood contrasts for testing homogeneity in finite mixture models with nuisance parameters
Debapriya Sengupta, Rahul Mazumder
This paper develops a test for homogeneity in finite mixture models where the mixing proportions are known a priori (taken to be 0.5) and a common nuisance parameter is present. St…
Pitch Tracking of Acoustic Signals based on Average Squared Mean Difference Function
Roudra Chakraborty, Debapriya Sengupta, Sagnik Sinha
In this paper, a method of pitch tracking based on variance minimization of locally periodic subsamples of an acoustic signal is presented. Replicates along the length of the perio…