Title :
Ringing artifact reduction for Poisson MAP superresolution algorithms
Author :
Lettington, Alan H. ; Hong, Qi He
Author_Institution :
J.J. Thomson Phys. Lab., Reading Univ., UK
fDate :
5/1/1995 12:00:00 AM
Abstract :
The distribution of edge values for an image of a general scene often has a sharp peak with a long tail. This property, which can be well described by a Lorentzian probability function, has been used to introduce a correction term that reduces the ringing artifacts that are associated with the Poisson MAP superresolution methods.<>
Keywords :
Poisson distribution; image resolution; maximum likelihood estimation; Lorentzian probability function; Poisson MAP superresolution algorithms; correction term; edge values distribution; image resolution; ringing artifact reduction; Bandwidth; Convolution; Fourier transforms; Image resolution; Lagrangian functions; Layout; Optical diffraction; Optimization methods; Probability distribution;
Journal_Title :
Signal Processing Letters, IEEE
