Seminar

Engineering Research Seminar Series 4, 2012: Spectral Imaging and Analysis for Designing Optimal Light

Prof. Markku Hauta-Kasari, Research Director, School of Computing / SIB-labs of University of Eastern Finland


Date: 2012-04-03
Time: 10:00 to 11:00
Venue: School of Engineering Meeting Room 5-4-22


Abstract

Spectral imaging is becoming more and more possible to be used in new application fields, such as in medical applications. The size and speed of spectral imaging devices make them convenient to be connected to microscopes or to other optical devices, in which the traditional detector has been monochrome or RGB-based sensor. It is possible to collect high dimensional spectral data from various applications and computational methods can be used to design optimal color filters, to design light sources with optimal spectral characteristics or to do spectral based image analysis, for example. In my presentation, I will present research results of medical applications including spectral imaging in eye fundus imaging and in neurosurgery. The imaging principles and results from spectral image analysis will be presented. In addition, I present the forestry related example that is spectral based invention for heartwood detection in sawmill application. The invention utilizes the fluorescence phenomenon by combining the optimal light source spectrum with optimal detection wavelengths. The research groups and infrastructure at the University of Eastern Finland in these fields will be presented.

About the Speaker

Markku Hauta-Kasari received his MSc in computer science from the University of Kuopio, Finland, in 1994 and his PhD in information processing from the Lappeenranta University of Technology, Finland, in 1999. Since 1999 he has been working in research and teaching positions, in 2002 as acting professor at the Department of Computer Science, University of Joensuu/University of Eastern Finland, Finland. From 1996 to 1998 he was a visiting researcher at the Optical Sensing Laboratory, Saitama University, Japan, in 2002 as a visiting researcher at Professor Miyake laboratory in Chiba University, Japan, and in 2007 as a visiting Professor at the National Museum of Japanese History, Japan. He is a Docent in spectral imaging and spectral image analysis at the University of Eastern Finland and Research Director and Professor in SIB-labs at the University of Eastern Finland. His research interest include spectral color research, pattern recognition and computer vision. He is a member of the Optical Society of Japan, and Pattern Recognition Society of Finland. He is the committee member of the International Committee for Imaging Science, ICIS, representing Finland, since 2007. He is a past chairman of the Pattern Recognition Society of Finland (2003 - 2006) and past chairman of the CIE Technical Committee TC8-07 "Multispectral imaging" (2008 -2011).