Name
Abstract | ||
|---|---|---|
We introduce a new approach for image filtering in a Bayesian framework, in this case the probability density function (pdf) of the likelihood function is approximated using the concept of non-parametric or kernel estimation. The method is also based on generalized Gaussian Markov random fields (GGMRF), a class of Markov random fields which are used as prior information into the Bayesian rule, which principal objective is to eliminate those effects caused by the excessive smoothness on the reconstruction process of images which are rich in contours or edges. Accordingly to the hypothesis made for the present work, it is assumed a limited knowledge of the noise pdf, so the idea is to use a non-parametric estimator to estimate such a pdf and then apply the entropy to construct the cost function for the likelihood term. The previous idea leads to the construction of Maximum a posteriori (MAP) robust estimators, since the real systems are always exposed to continuous perturbations of unknown nature. Some promising results of three new MAP entropy estimators (MAPEE) for image filtering are presented, together with some partial concluding remarks. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1109/CONIELECOMP.2012.6189906 | CONIELECOMP |
Keywords | Field | DocType |
image reconstruction,probability density function,maximum likelihood estimation,likelihood function,entropy estimation,robust estimator,markov processes,gaussian processes,cost function,entropy | Entropy estimation,Likelihood function,Pattern recognition,Computer science,Markov chain,Gaussian process,Artificial intelligence,Maximum a posteriori estimation,Probability density function,Kernel density estimation,Estimator | Conference |
ISBN | Citations | PageRank |
978-1-4577-1326-2 | 0 | 0.34 |
References | Authors | |
0 | 5 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| José Ismael de la Rosa Vargas | 1 | 10 | 5.29 |
| Jesús Villa Hernández | 2 | 0 | 1.35 |
| Efrén González | 3 | 3 | 2.79 |
| Ovaldo Gutiérrez | 4 | 0 | 0.34 |
| Enrique de la Rosa | 5 | 0 | 0.34 |