Talk of Dr. Montagnat in Ateneo

The Computational Science Initiative of the School of Science and Engineering, in cooperation with theDepartment of Mathematics, the Department of Information Systems andComputer Science (DISCS), and the Department of Electronics,Communications, and Computer Engineering (ECCE)

cordially invites you to the following special lecture:

Title: Biomedical Applications of Grid Computing: Texture Based MedicalImage Indexing and Retrieval

Speaker: Johan Montagnat, Ph.D.
French National Center for Scientific Research, France

Date & Time: Thursday, 2 August 2007, 10:30 a.m. -- 12:00 n

Venue: SOM 111 (Ching Tan Room)

With the generalization of digital imaging in medicine and the emergence of ever growing medical archives, efficient tools for retrieving clinically relevant data are needed. Medical images are usually indexed with medical records (patient information, acquisition parameters, etc.) but for applications such as epidemiology or diagnostic assistance, images also need to be identified from their content. Content-based image retrieval in medical databases is challenging both in terms of computing power (size of image databases, complexity of algorithms) and in terms of performance of image content analysis algorithms (difficulty to identify relevant features in medical images).

Our research project is addressing the problem of content-based medical image retrieval in large databases. We are exploiting grids to tackle the computational requirement of this problem. We developed strategies to optimize the load distribution over the very large scale EGEE (EnablingGrids for E-sciencE) grid infrastructure, taking into account its properties and load. We have explored several strategies to identify relevant images. Texture features extracted using Gabor filters proved tobe an efficient and relevant mean of indexing medical databases. The texture feature can be correlated to image modality, tissues, and subtle changes such as myocardium tissues variation using the cardiac cycle.

About the Speaker:
Dr. Johan Montagnat obtained his PhD in Computer Science (with highest honors) from the University of Nice-Sophia Antipolis (France). He is currently a research scientist at the French National Center forScientific Research (CNRS), working in the fields of medical image processing and grid computing. Dr. Montagnat is a co-principal investigator of the ONCO-MEDIA project (, an international research collaboration on biomedical applications of gridcomputing, wherein Ateneo de Manila University is one of the partner institutions.

For more information, please contact:
Dr. Rafael Saldana
Associate Professor,
Mathematics Department
Ateneo de Manila University

Dr. Fabian M. Dayrit
Dean, School of Science & Engineering
Professor, Department of Chemistry
Ateneo de Manila University
Loyola Heights
1108 Quezon City, Philippines

Mailing address:
P.O. Box 154, Manila Central Post Office
0917 Manila, Philippines
Tel: (632) 426-6001 ext 5600
Fax: (632) 426-5985