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KMi Seminars
Resolution Mosaic Image Segmentation
This event took place on Wednesday 09 July 2008 at 11:30

 
Mohammed Abdel-Megeed Salem Humboldt-Universitaet zu Berlin

Due to the popularity of visual-based information in the forms of images and videos, more computer vision systems take part in the automation of diverse applications, such as medical diagnosing, monitoring and security. Segmentation is a necessary step in almost every pattern recognition and computer vision system. As the spectrum of the applications expands, the demand for an accurate and fast segmentation process increases.

In this talk we present an algorithm for image segmentation, that is based on the multiresolution analysis and the well known expectation maximisation algorithm. Based on the distribution of the information contained in the image, the multiresolution analysis is used to re-represent the image in a mosaic of different resolutions. Within this new re-representation the irrelevant information is suppressed in the segmentation process. The image is then modelled to be generated by a statistical field. The expectation maximisation algorithm is used to find the missing parameters of the model. A magnetic resonance image and many synthetic images were used for testing and evaluating the algorithm. The experiments show its robustness against noise.

 
KMi Seminars
 

Future Internet is...


Future Internet
With over a billion users, today's Internet is arguably the most successful human artifact ever created. The Internet's physical infrastructure, software, and content now play an integral part of the lives of everyone on the planet, whether they interact with it directly or not. Now nearing its fifth decade, the Internet has shown remarkable resilience and flexibility in the face of ever increasing numbers of users, data volume, and changing usage patterns, but faces growing challenges in meetings the needs of our knowledge society. Globally, many major initiatives are underway to address the need for more scientific research, physical infrastructure investment, better education, and better utilisation of the Internet. Within Japan, USA and Europe major new initiatives have begun in the area.

To succeed the Future Internet will need to address a number of cross-cutting challenges including:

  • Scalability in the face of peer-to-peer traffic, decentralisation, and increased openness

  • Trust when government, medical, financial, personal data are increasingly trusted to the cloud, and middleware will increasingly use dynamic service selection

  • Interoperability of semantic data and metadata, and of services which will be dynamically orchestrated

  • Pervasive usability for users of mobile devices, different languages, cultures and physical abilities

  • Mobility for users who expect a seamless experience across spaces, devices, and velocities