@inproceedings{inproceedingsf4b04c4b,
title   = {Method for image background filtering of colored images using elliptical coordinates},
author = {Bonventi Júnior, Waldemar and Albuquerque, Antonio Roberto Pereira Leite de and Isotani, Sadao},
year = {1994},
publisher = {Owls},
booktitle   = {International Conference of the International Society on Optics Within Life Sciences}
}