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Visual Computing Forum


The Visual Computing Forum, or VCF, is a series of seminars organized by the visualization group with selected talks from the fields of visualization, image processing, computer graphics, and so on. The individual seminars are arranged approximately once a month, on Fridays from 11am to 12am, and they will be interleaved with the MedViz seminars. They will be held either at the H°yteknologisenteret or at the VilVite Science Center.
If you wish to be informed about upcomming VCF events, please write an e-mail to "vcf.bergen@gmail.com", "Helwig.Hauser@UIB.no" or "Sergej.Stoppel@UIB.no".

vcf.bergene@google.com   Seminars calendar   

     May 20, 2015

Title: Visual Analysis of Ensembe Simulations


Speaker: Prof. Dr.-Ing. Lars Linsen

Place: Big Auditorium, 2rd floor, H°yteknologisenteret (data blokk)

Time: Thursday May 20, 2015, from 14:00am to 15:30am

Abstract:
Mathematical models are used for the description and the understanding of phenomena in all sciences. Numerical simulations support the validation of the models and data assimilation purposes. Such simulations often depend on a number of simulation parameters and initial configurations. The selection of these parameters and configurations is often not exactly known or their impact is part of the underlying research tasks. Therefore, multiple simulation runs with varying parameter settings or ensembles of simulations with varying configurations are executed. The analysis of such simulation ensembles is complex, especially when each simulation run represents a four-dimensional spatio-temporal phenomenon. The amount of data of a simulation ensemble often adds up to hundreds of Gigabytes or even Terabytes. The analysis of such complex data is no longer possible without the use of computers. On the other hand, such an analysis typically requires the expertise of a human. As visual representations are intuitive and can be processed efficiently by humans, it is a suitable approach to combine visual representations and interaction mechanisms with automatic analysis steps. In this talk, I will present novel visualization methods that allow for an interactive comparative analysis of such large and complex data stemming from simulation ensembles. The methods are applied for the analysis of data stemming from biology, climate research, astrophysics, and medicine.


Additional material: Flyer


     April 10, 2015

Title: Visual analysis for leakage detection in subsea acoustic monitoring.


Speaker: Julius Parulek (Adjunct associate professor at UIB)

Place: Room 3137, 3rd floor, H°yteknologisenteret (data blokk)

Time: Friday April 10, 2015, from 10.15am to 11.15am

Abstract:
In situ analysis of streamed acoustic data is crucial for sub sea environmental monitoring tasks. One of the crucial applications is represented by detection of oil and gas leakages from subsea installations. On the software level, the monitoring system is based on semi-automatic and also on fully-automatic data analysis pipeline, which incorporate challenges related to big data analysis, visualization and machine learning. In this presentation, I will aim mainly at the role of visualization and machine learning in the detection of gas plumes.


Additional material: Flyer


     March 13, 2015

Title: CAVER - Analysis and Visualization of Protein Structure


Speaker: Barbora Kozlikova (Assistant Professor at Masaryk University in Brno)

Place: Room 3137, 3rd floor, H°yteknologisenteret (data blokk)

Time: Friday March 13, 2015, from 10.15am to 11.15am

Abstract:
The talk aims to present the background of the CAVER project which is dedicated to analysis and visualization of proteins. Our algorithms are focusing namely on the detection and classification of inner void space. This long-term project is baed on a tight cooperation with the group of biochemists. In the talk I'll concentrate on the main principle and future challenges of this project.


Additional material: Flyer


     February 06, 2015

Title: Quantitative analysis of dynamic contrast enhanced MR (DCE-MRI) data of the kidney


Speaker: Erlend Hodneland (MedViz PostDoc at CMR.no)

Place: Room 3137, 3rd floor, H°yteknologisenteret (data blokk)

Time: Friday February 06, 2015, from 10.15am to 11.15am

Abstract:
Quantitative analysis of DCE-MRI data from the kidney has the potential to become a clinically highly useful imaging modality for the non-invasive investigation of organ function. There are major challenges related to perfusion imaging of the human kidney that I want to address. The processing pipeline has several components: choice of MR sequence, breathing pattern, conversion to tracer concentrations, motion correction, segmentation of kidney and arterial input function (AIF), and compartment modelling for estimating the filtration and perfusion. The reproducibility between repeated MR scans is high, but a comparison to clinical standards for kidney filtration reveals that the MR estimates for filtration are still not within the range for active clinical use. In this presentation I will address the challenges related to the processing pipeline.


Additional material: Flyer



VCF seminars in 2015, 2014, 2013, 2012, 2011


 Last change: Helwig Hauser, 2009-09-22