@inproceedings{inproceedingse5815992,
title   = {Improvements on head pose estimation algorithm for state classification},
author = {Silva, Renato Ramos da and Romero, Roseli Aparecida Francelin},
year = {2013},
publisher = {SBIC},
booktitle   = {BRICS Countries Congress on Computational Intelligence - BRICS-CCI}
}