@inproceedings{inproceedings3178b170,
title   = {Subtraction of images for automatic determination of center of the radiation field},
author = {Nascimento, Marcelo Zanchetta do and Slaets, Annie France Frère and Marques, Márcio Alexandre and Rodrigues, Sílvia Cristina Martini},
year = {2003},
publisher = {IEEE/EMBC},
booktitle   = {International Conference on Engineering in Medicine and Biology Society}
}