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ICIP
1994
IEEE
16 years 6 months ago
On Symmetric Extensions, Orthogonal Transforms of Images, and Paraunitary Filter Banks
Periodic or symmetric extensions are commonly used for processing images and other finitelength signals with a paraunitary Alter bank (PUFB).Unlike infinite-length signals, PUFBs ...
Ricardo L. de Queiroz, K. Raghunath Rao
ICIP
1994
IEEE
16 years 6 months ago
Diffusion Networks for On-Chip Image Contrast Normalization
A newmethodfornormalizingandquantizingimagesispresented. The method is based oncalculating a local referenceframeforthe imagegray levels. "helevels of the referenceframeareca...
Pietro Perona, Marco Tartagni
ICIP
1994
IEEE
16 years 6 months ago
Theory, Simulation and Compensation of Physiological Motion Artifacts in Functional MRI
Mapping the location of brain activity is a new and exciting application of magnetic resonance imaging (MRI). This application area has already seen the use of a variety of magnet...
Douglas C. Noll, Walter Schneider
ICIP
1994
IEEE
16 years 6 months ago
Joint Parameter Estimation and Restoration using MRF Models and Homotopy Continuation Method
This paper presents a joint strategy for parameter estimation of Markov Random Field (MRF) model and image restoration. The proposed scheme is an unsupervised one in the sense tha...
P. K. Nanda, Uday B. Desai, P. G. Poonacha