Image processing and computational intelligence methods for computer-aided  skin cancer diagnosis

Seminar Title: Image processing and computational intelligence methods for computer-aided  skin cancer diagnosis

Speaker: Prof. Maciej J. Ogorzalek

Date: 3月25日（周三）上午10:00-11:00

Venue: 行政楼C505

Abstract:

During the last two decades we have observed an amazing development of imaging techniques targeted for bio-medical applications.  In the area of dermatology two types of specialized equipment have been developed for this purpose, namely the dermatoscope and the SIAscope. Images acquired using dermatoscopes can be stored and analyzed further by computers.  The digital image serves as a basis for medical analysis and diagnosis of lesions under consideration. As there is a general lack of precision in human interpretation of image content, advanced computerized techniques can assist doctors in the diagnostic process (European Consensus 2009).  In this talk we review some of the  methods of image  processing for melanoma diagnosis and also introduce new  methods based on color decompositions used in video and TV image processing as well as new spatial and frequency information found in the skin texture. These new methods assume that some neighborhood properties of pixels in dermatoscopic images can be a sensitive probe of different pigmented skin atypia and the melanoma progression. Such multi resolution analysis is well suited to determine distinctive signals characterizing the class of lesions. The performance is tested on two types of features extracted from pigmented lesion images:  color/geometric features, and wavelet-based features. Classification performance with the wavelet features, although achieved with simple rules, is very high. Symbolic learning applied to our skin lesion data outperforms other classical machine learning methods.

Short Bibliography of the Speaker

Dr. Maciej J. Ogorzalek is professor of Electrical Engineering and Computer Science and head of the Department of Information Technologies, Jagiellonian University (the oldest academic institution in Poland, founded in 1364) in Krakow, Poland. He held several visiting positions in Denmark, Switzerland, Germany, Spain, Japan, and Hong Kong. Dr. Ogorzalek received a Research Award from the Ministry of Education of Spain in 2000 and worked for one year at the National Microelectronic Center, Seville, Spain. In 2001 he received a Senior Award from the Japan Society for Promotion of Science as visiting professor at Kyoto University and in 2005 a Hertie Foundation Fellowship at the Goethe University Frankfurt-am-Main. From 2006–2009 he held the chair of Biosignals and Systems, Hong Kong Polytechnic University, under the Distinguished Scholars Scheme. His research interests include nonlinear systems, chaos and complexity, bio-medical signal and image processing, new approaches to design of 3D microelectronic circuits, applications of computational intelligence techniques in system design, and signal/image analysis and classification. Dr. Ogorzalek is author or co-author of over 250 technical papers published in journals and conference proceedings, and author of the book Chaos and Complexity in Nonlinear Electronic Circuits (World Scientific, 1997). He served as executive vice-president of the Sniadecki Science Foundation (until 2006).

He served as editor-in-chief of the Circuits and Systems Magazine (2004–2007), associate editor of Proceedings of the IEEE (2004–2009), associate editor for the IEEE Transactions on Circuits and Systems Part I (1993–1995 and 1999–2001). He also serves as an associate editor of International Journal of Bifurcations and Chaos (2004–), Journal of the Franklin Institute (1997–), secretary of the editorial board for the Quarterly of Electrical Engineering (1993–2000), member of the editorial board of Automatics (in Polish), and member of the editorial board of the International Journal of Circuit Theory and Applications (in Polish) (2000–). Since 2009 he is an associate editor of the NOLTA Journal (Japan).

Dr. Ogorzalek is an IEEE fellow (1997). He served the IEEE Circuits and Systems Society in various capacities including the Society president in 2008. He was CAS Society Distinguished Lecturer (2004–2005) and received the 2002 Guillemin-Cauer Award and IEEE-CAS Golden Jubilee Award. In 2012 he has been elected member of the Academia Europaea. In 2014 elected member of the IEEE Board of Dirctors as Director-elect Division 1.