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Nordic Tomography Workshop


Nordic Tomography Workshop takes place on 7 May 2012 at the University of Helsinki, Department of Mathematics and Statistics.
The workshop concentrates on new methods for sparse and limited angle tomography.

Local Organizing Committee: Samuli Siltanen, Esa Niemi and Marianna Khanamiryan.

Programme (hall CK112):

9:00-9:15     Opening and overview by Samuli Siltanen

9:15-10:00   Keynote speaker Per Christian Hansen, "Total Variation and Tomographic Imaging from Projections" Hansen.pdf

10:00-10:30 Coffee break

10:30-10:55  Dirk Lorenz, "Sparse tomographic reconstruction for visualization of astronomic nebulae"

10:55-11:15  Esa Niemi, "Total variation regularization for 3D x-ray tomography"

11:15-11:40  Ozan Öktem, "3D Electron Microscopy: What can mathematics do for biologists?"

11:40-12:00  Marianna Khanamiryan, "Medical imaging: CT artifact reconstruction"

12:00-13:30 Lunch break

13:30-13:55  Jürgen Frikel, "Sparse regularization in limited angle tomography" Frikel_optimized.pdf

13:55-14:20  Matti Lassas, "Discretization of total variation priors"

14:20-14:45  Aki Kallonen, "Some present challanges for x-ray microtomography"

14:30-15:00 Coffee break

General information:

  1. Location of the venue, Department of Mathematics and Statistics, University of Helsinki (Kumpula Campus, Exactum Building): see the map
  2. Accommodation. There are many hotels available in the city center of Helsinki, for example Radisson Blu Royal Hotel, Scandic Simonkenttä and Sokos Hotel Torni.
  3. Traveling information
    • From airport to city center
      The easiest way to get from Helsinki-Vantaa airport the city center is by taxi. This costs about 30-45 euros and takes half an hour.
      Finnair city buses operate between Helsinki city center and the airport. A one way ticket  costs about 6 euros. For the time table and map see: Finnair city bus timetables
      Local bus number 615 also operates between the airport and Helsinki city center. And bus number 620N operates at night time. For timetables see: Local bus timetables
      Both the Finnair city bus and the local buses have their final stops next to the central railway station, which is located within 1 km from hotels Radisson Blue, Scandic Hotel Simonkenttä and Sokos Hotel Torni.
    • From city center to Kumpula campus
      The Kumpula campus area is located approximately 5 km from the city center. The easiest way of getting there by public transport is either by bus or by tram.
      Several local buses pass via the Kumpula campus area, including 75,77,731,732,734 and 741. Most of the buses depart from the east side of the central railway station (see map), these include 75,77,731,732,734 and 741.  Bus 70T departs from Kamppi shopping center (map). The campus stop is called "Kumpula kampus" in finnish (map). For timetables and routes  see: Local bus timetables
      Trams number 6 and 8 pass by the Kumpula campus area. For details see: Tram timetables
      A useful tool for choosing public transportation in Helsinki area is the journey planner

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