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)