Albiol Colomer, AntonioNaranjo, ValeryMora Jiménez, Inma2009-07-302009-07-302009-07-300-7695-0750-6http://hdl.handle.net/10115/2607This paper deals with an application of image sequence analysis. In particular, it addresses the problem of determining the number of people who get into and out of a train carriage when it's crowded and background and/or illumination might change. The proposed system analyses image sequences and processes them using an algorithm based on the use of several morphological tools and optical flow motion estimation.enTelecomunicacionesinfo:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/openAccess3325 Tecnología de las Telecomunicaciones