University of Göttingen - Institute for Numerical and Applied Mathematics
Christian Kruschel

News
  •        04/2015 I am an invited speaker at the session '(Co)Sparsity in Tomography and Inverse Problems" organized by Andreas Tillmann at the ISMP.
  •        03/2015 I am an invited speaker at the workshop on 'Sparse Tomographic Reconstruction: Theoretical an Numerical Aspects'. Details here.
  •        02/2015 In summer I will give a lecture on 'Greedy algorithms in approximation theory' (together with F. Bossmann). Details in Stud IP. See also UniVZ.
  •        01/2015 My joint paper 'Computing and Analyzing Recoverable Supports for Sparse Reconstruction' with Dirk Lorenz has been accepted for publication in 'Advances in Computational Mathematics', DOI: 10.1007/s10444-015-9403-6
  •        12/2014 My joint paper 'Testable uniqueness conditions for empirical assessment of undersampling levels in total variation-regularized x-ray CT' with Jakob Jørgensen and Dirk Lorenz is published online (open access)
  •        11/2014 Start as a Postdoc in the workgroup of Prof. Dr. Felix Krahmer


Research Interest
  •        Image Processing
  •        Regularization Methods
  •        Compressed Sensing
  •        Probability theory
  •        Convex polytopes


  • Short CV
    •        Since 2014 Research Assistant at University Goettingen
    •        2011-2014 Research Assistant at TU Braunschweig
    •        2010/2011 Working Student/Graduand at Siemens Healthcare, Forchheim, Germany
    •        2005-2011 studied Mathematics Bachelor/Master at TU Braunschweig
    •        1984 born in Winsen (Luhe), Germany


    Reviews
    •        Inverse Problems, Journal of Mathematical Imaging and Vision, SIAM Journal on Imaging Sciences


    Completed projects
    Efficient analysis of high-dimensional ultrasound data in non-destructive testing (ZeMat) (2013-2016)
    Joint BMBF research project , Subproject 2: Sparsity constraints in non-destructive testing
    Teaching
    Research seminar: Numerical Analysis (English) (SS 2016)
    Thursday, 12.30 - 14.00, Seminarraum NAM (2 SWS)
    Research seminar: Numerical Analysis (English) (WS 2015/2016)
    Thursday 12.30 - 14.00, Seminarraum NAM (2 SWS)
    Research seminar: Numerical Analysis (English) (SS 2015)
    Monday, 12.30 - 14.00, Seminarraum NAM (2 SWS)
    Lecture: Greedy Algorithms in Approximation Theory (SS 2015)
    Tuesday and Wednesday 12.15 - 13.55, Seminarraum NAM (2+2 SWS)
    Research seminar: Numerical Analysis (English) (WS 2014/2015)
    Thursday 12.30 - 14.00, Seminarraum NAM (2 SWS)
    Workshops
    Joint Annual Meeting of GAMM and DMV 2016 (Talk)
    March 7 - 11, 2016 in Braunschweig
    ISMP 2015 (Talk)
    July 12 - 17, 2015 in Pittsburgh, USA
    Inverse Problems in Wave Propagation - IWaP 2015
    April 7 - 10, 2015 in Bremen, Germany
    Sparse Tomographic Reconstruction: Theoretical and Numerical Aspects (Talk)
    March 19 - 20, 2015 in Heidelberg, Germany
    Matheon Workshop 2013 Compressed Sensing and its Applications (Poster)
    December 9 - 13, 2013 in Berlin
    Statistical Issues in Compressive Sensing (Poster)
    November 11 - 13, 2013 in Göttingen
    Advances in Mathematical Image Processing (AIP) (Talk)
    September 30 - October 2, 2013 in Annweiler
    Image Reconstruction: Mathematics & Applications (Talk)
    July 23 - 27, 2012 in München-Garching
    SIAM Conference on Applied Linear Algebra (Talk)
    June 18 - 22, 2012 in Valencia (Spain)
    SIAM Conference on Imaging Science (Talk)
    May 20 - 22, 2012 in Philadelphia (Pennsylvania, USA)
    Publications
    Computing and Analyzing Recoverable Supports for Sparse Reconstruction
    Christian Kruschel, D.A. Lorenz
    Advances in Computational Mathematics 41(6), pp. 1119-1144, 2015 (early version: ArXiv)
    Testable uniqueness conditions for empirical assessment of undersampling levels in total variation-regularized x-ray CT
    J.S. Jørgensen, Christian Kruschel, D.A. Lorenz
    Inverse Problems in Science and Engineering 23(8), 2015 (pp. 1283-1305, open access)
    Master's thesis: Modeling and Analysis of Calibrating Cone-Beam-CT
    Christian Kruschel
    TU Braunschweig, Institut for Analysis and Algebra, June 2011 (Supervisor: Prof. Dr. Dirk Lorenz, In cooperation with SIEMENS Healthcare, Forchheim)



Dr. Christian Kruschel