Now showing items 1-5 of 5
Throughput Measures for Delay-constrained Communications in Fading Channels
Fading channels, often seen in wireless systems, provide an unfavorable environment for reliable communications. Current methods for evaluating the performance of fading channels include ergodic capacity and <i>epsilon</ ...
Orthogonal Hilbert Transform Filter Banks and Wavelets
Complex wavelet transforms offer the opportunity to perform directional and coherent processing based on the local magnitude and phase of signals and images. Although denoising, segmentation, and image enhancement are ...
Wavelet Statistical Models and Besov Spaces
JPEG Compression History Estimation for Color Images
We routinely encounter digital color images that were previously JPEG-compressed. We aim to retrieve the various settings - termed JPEG compression history (CH) - employed during previous JPEG operations. This information ...
Nonlinear Wavelet Transforms for Image Coding via Lifting
We investigate central issues such as invertibility, stability, synchronization, and frequency characteristics for nonlinear wavelet transforms built using the lifting framework. The nonlinearity comes from adaptively ...