Computer Tomography (CT) allows the study of inner parts of objects in a non-invasive way. This seminar describes the application of CT in the analysis of materials, the perspectives and limitation to such techniques. Results in testing concrete column samples using a tomograph of gamma rays will be shown. The image processing methods used to segment the important parts of the samples will also be discussed.

Antonio Martins was born in 1966 in the city of Sorocaba, Brasil. He graduated in Physics at the State University of Campinas (UNICAMP) in 1989. He has a Master Degree in Experimental Nuclear Physics from the State University of São Paulo. In 1997 he got his PhD in Electrical Engineering at the State University of São Paulo under the supervision of Dr. Rangaraj Rangayyan from the University of Calgary. He spent two periods as a research associate at the University of Calgary, two months in 1996 and one month in 2001, when he has developed work in the areas of image processing and sonification. From 1998 to 2004 he was the head of computer engineering department at the Faculdade de Engenharia de Sorocaba (FACENS) where he had several undergraduate students under his supervision. Since March 2004, he has joined the State University Júlio de Mesquita Filho (UNESP) as an associated professor. His areas of interest are: texture image analysis, nondestructive material analysis, high resolution satellite image analysis and sonification.