Approximation theory for discrete transforms (e.g., DFT, DCT, DHT, KLT, &c)
Approximate computation
Approximate inference
Computationally-constrained estimation
Stochastic analysis of the fast algorithms
Probability distributions and Entropies
Non-uniform sampling
Derivatives and generalizations of the arithmetic Fourier transform
Not so poor man's Fourier Series
Non-conventional number representations
Statistical image processing of SAR data
Wavelets analysis of biomedical data
Stockwell transform analysis
Watermarking based on number theoretic transforms
Density of Gaussian integer sets and its probabilistic implications
Our group develops original research chiefly in the following areas:
approximation methods;
computational statistics;
low-power, low-complexity circuitry design;
fast algorithms for DSP and Statistics;
regression models and likelihood inference;
efficient numerical computation;
sampling and interpolation methods
non-conventional approaches for spectral estimation;
statistical signal processing;
image processing for remote sensing;
signal analysis (analog, discrete, digital; voice, image, video);
probability distributions and entropies;
biomedical signal processing.
In statistical jargon, our research is a combination of the following:
time series analysis (interpolation, sampling, frequency domain methods);
statistical computing; and
applied estimation theory and detection theory.