Agenda

Graph signal processing: Analyzing and filtering data over networks

Elvin Isufi

Nowadays, we are surrounded by massive data that reside on irregular structures. Examples include data generated by biological, financial, and sensor networks. Graphs indeed offer the ability to model the interactions between them. Current efforts in signal processing are being focused on providing analysis and processing tools for these data such that the underlying structure is taken into account. These include the development of a Fourier transform and filtering operations for graph data. The field that gathers these tools is called graph signal processing (GSP).

     This talk will be focused on the fundamentals of GSP spanning concepts like the signal variation over a graph, the graph Fourier transform, the graph filter, and its distributed implementation. The talk will be concluded with some illustrative examples and future work directions.

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Agenda

MSc SS Thesis Presentation

Zheheng Liu

An Investigation of the Medical Ultrasound Image Sparse Spaces used for Model-Based Imaging

Aiming for sparse regularization in imaging

PhD Thesis Defence

Jeroen van Gemert

Efficient computational methods in Magnetic Resonance Imaging

How to design dielectric pads that can be used to increase image quality inMagnetic Resonance Imaging, and how to accelerate image reconstruction times using a preconditioner.

MSc SS Thesis Presentation

Bastian Generowicz

Improving Ultrafast Doppler Imaging using Subspace Tracking

fast tracking to distinguish blood motion from clutter signals caused by slow moving tissue.

PhD Thesis Defence

Elvin Isufi

Graph-Time Signal Processing Filtering and Sampling Strategies

Design of graph filters where nodes exchange information only with their neighbors to perform a given filter operation: how can distributed FIR and IIR graph filters be made?

Signal Processing Seminar

Tarik Kazaz

Wireless communication and networking, Digital Design

Signal Processing Seminar

Jac Romme

Signal processing for communication, sensor networks

Signal Processing Seminar

Borbála Hunyadi

Biomedical signal processing

Signal Processing Seminar

Jiani Liu

Underwater communication