@conference {103, title = {Low cost obstacle detection for smart railway infrastructures}, booktitle = {IEEE Intelligent Vehicles Symposium (IV{\textquoteright}04)}, year = {2004}, month = {06/2004}, pages = {670-675}, address = {Parma, Italia}, isbn = {0-7803-8311-7}, attachments = {https://geintra-uah.org/system/files/private/IV04_I.pdf}, author = {J.J. Garcia and {\'A}lvaro Hern{\'a}ndez and Ure{\~n}a, J. and Garcia, Juan Carlos and Manuel Mazo and Jose L. Lazaro and Mar{\'\i}a del Carmen Perez and Fernando J. {\'A}lvarez} }