Per Christian Hansen

  1. 2014
  2. Published

    A Computationally Efficient Tool for Assessing the Depth Resolution in Potential-Field Inversion. / Paoletti, V.; Hansen, Per Christian; Hansen, Mads Friis; Fedi, M.

    Kgs. Lyngby : Technical University of Denmark, 2014. 25 p. (DTU Compute-Technical Report-2014; No. 03).

    Publication: ResearchReport – Annual report year: 2014

  3. Published

    Semi-convergence properties of Kaczmarz’s method. / Elfving, Tommy; Hansen, Per Christian; Nikazad, Touraj.

    In: Inverse Problems, Vol. 30, No. 5, 055007, 2014.

    Publication: Research - peer-reviewJournal article – Annual report year: 2014

  4. 2013
  5. E-pub ahead of print

    Generalized Row-Action Methods for Tomographic Imaging. / Andersen, Martin Skovgaard; Hansen, Per Christian.

    In: Numerical Algorithms, 2013.

    Publication: Research - peer-reviewJournal article – Annual report year: 2013

  6. Published

    Inverse Problems in Geosciences: Modelling the Rock Properties of an Oil Reservoir. / Lange, Katrine; Mosegaard, Klaus (Main supervisor); Hansen, Per Christian (Supervisor); Stenby, Erling Halfdan (Supervisor).

    Kgs. Lyngby : Technical University of Denmark, 2013. 248 p. (IMM-PHD-2013; No. 296).

    Publication: ResearchPh.D. thesis – Annual report year: 2013

  7. Published

    Least Squares Data Fitting with Applications. / Hansen, Per Christian; Pereyra, Víctor; Scherer, Godela.

    Baltimore : Johns Hopkins University Press, 2013. 328 p.

    Publication: Research - peer-reviewBook – Annual report year: 2012

  8. Published

    Oblique projections and standard-form transformations for discrete inverse problems. / Hansen, Per Christian.

    In: Numerical Linear Algebra with Applications, Vol. 20, No. 2, 2013, p. 250–258.

    Publication: Research - peer-reviewJournal article – Annual report year: 2011

  9. E-pub ahead of print

    Rotational image deblurring with sparse matrices. / Hansen, Per Christian; Nagy, James G.; Tigkos, Konstantinos.

    In: BIT Numerical Mathematics, 2013, p. 1-23.

    Publication: Research - peer-reviewJournal article – Annual report year: 2014

  10. Published

    Sparse Image Reconstruction in Computed Tomography. / Jørgensen, Jakob Sauer; Hansen, Per Christian (Main supervisor); Schmidt, Søren (Supervisor).

    Kgs. Lyngby : Technical University of Denmark, 2013. 292 p. (PHD-2013; No. 293).

    Publication: ResearchPh.D. thesis – Annual report year: 2013

  11. Published

    The Homogeneous Interior-Point Algorithm: Nonsymmetric Cones, Warmstarting, and Applications. / Skajaa, Anders; Hansen, Per Christian (Main supervisor); Jørgensen, John Bagterp (Supervisor).

    Kgs. Lyngby : Technical University of Denmark, 2013. 149 p. (IMM-PHD-2013; No. 311).

    Publication: ResearchPh.D. thesis – Annual report year: 2014

  12. 2012
  13. Published

    AIR Tools - A MATLAB package of algebraic iterative reconstruction methods. / Hansen, Per Christian; Saxild-Hansen, Maria.

    In: Journal of Computational and Applied Mathematics, Vol. 236, No. 8, 2012, p. 2167-2178.

    Publication: Research - peer-reviewJournal article – Annual report year: 2010

  14. Published

    Electrical Impedance Tomography: 3D Reconstructions using Scattering Transforms. / Delbary, Fabrice; Hansen, Per Christian; Knudsen, Kim.

    In: Applicable Analysis, Vol. 91, No. 4, 2012, p. 737-755.

    Publication: Research - peer-reviewJournal article – Annual report year: 2011

  15. Published

    Implementation of an optimal first-order method for strongly convex total variation regularization. / Jensen, Tobias Lindstrøm; Jørgensen, Jakob Heide; Hansen, Per Christian; Jensen, Søren Holdt.

    In: Bit (Lisse), Vol. 52, No. 2, 2012, p. 329–356.

    Publication: Research - peer-reviewJournal article – Annual report year: 2011

  16. Submitted

    Quantitative study of undersampled recoverability for sparse images in computed tomography. / Jørgensen, Jakob Heide; Sidky, Emil Y.; Hansen, Per Christian; Pan, Xiaochuan.

    In: S I A M Journal on Scientific Computing, 2012.

    Publication: Research - peer-reviewJournal article – Annual report year: 2012

  17. Published

    Semiconvergence and Relaxation Parameters for Projected SIRT Algorithms. / Elfving, Tommy; Hansen, Per Christian; Nikazad, Touraj.

    In: S I A M Journal on Scientific Computing, Vol. 34, No. 4, 2012, p. A2000-A2017.

    Publication: Research - peer-reviewJournal article – Annual report year: 2012

  18. 2011
  19. Published

    Accelerated gradient methods for total-variation-based CT image reconstruction. / Jørgensen, Jakob Heide; Jensen, Tobias Lindstrøm; Hansen, Per Christian; Jensen, Søren Holdt; Sidky, Emil Y.; Pan, Xiaochuan.

    Proceedings of 11th Fully 3D Meeting. 2011.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2011

  20. Published

    A Direct Numerical Reconstruction Algorithm for the 3D Calderón Problem. / Delbary, Fabrice; Hansen, Per Christian; Knudsen, Kim.

    In: Journal of Physics: Conference Series (Print), Vol. 290, 2011, p. 012003.

    Publication: Research - peer-reviewConference article – Annual report year: 2011

  21. Published

    Image Deblurring with Krylov Subspace Methods. / Hansen, Per Christian (Invited author).

    Proceedings of WSC 2011. 2011.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2011

  22. Published

    On Implementing a Homogeneous Interior-Point Algorithm for Nonsymmetric Conic Optimization. / Skajaa, Anders; Jørgensen, John Bagterp; Hansen, Per Christian.

    Kgs. Lyngby : Technical University of Denmark, DTU Informatics, Building 321, 2011. (IMM-Technical Report-2011-02).

    Publication: ResearchReport – Annual report year: 2011

  23. Published

    Total Variation and Tomographic Imaging from Projections. / Hansen, Per Christian (Invited author); Jørgensen, Jakob Heide (Invited author).

    Proceedings of WSC 2011. 2011.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2011

  24. Published

    Toward optimal X-ray flux utilization in breast CT. / Jørgensen, Jakob Heide; Hansen, Per Christian; Sidky, Emil Y.; Reiser, Ingrid S.; Pan, Xiaochuan.

    Proceedings of 11th Fully 3D Meeting. 2011.

    Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2011

  25. 2010
  26. Published

    AIR Tools - A MATLAB Package of Algebraic Iterative Reconstruction Techniques : Version 1.0 for Matlab 7.8. / Hansen, Per Christian; Saxild-Hansen, Maria.

    Kgs. Lyngby, Denmark : Technical University of Denmark, DTU Informatics, Building 321, 2010. (IMM-Technical Report-2010-15).

    Publication: ResearchReport – Annual report year: 2010

  27. Published

    Algorithms and software for total variation image reconstruction via first-order methods. / Dahl, Joahim; Hansen, Per Christian; Jensen, Søren Holdt; Jensen, Tobias Lindstrøm.

    In: Numerical Algorithms, Vol. 53, No. 1, 2010, p. 67-92.

    Publication: Research - peer-reviewJournal article – Annual report year: 2010

  28. Published

    Discrete Inverse Problems : Insight and Algorithms. / Hansen, Per Christian.

    Philadelphia : Society for Industrial and Applied Mathematics SIAM, 2010. 213 p. (Fundamentals of Algorithms; No. FA07).

    Publication: Research - peer-reviewBook – Annual report year: 2010

  29. Published

    Semi-convergence and relaxation parameters for a class of SIRT algorithms. / Elfving, Tommy; Nikazad, Touraj; Hansen, Per Christian.

    In: Electronic Transactions on Numerical Analysis, Vol. 37, 2010, p. 321-336.

    Publication: Research - peer-reviewJournal article – Annual report year: 2010

  30. Published

    Towards multi-exponential analysis in optically stimulated luminescence. / Ankjærgaard, Christina; Jain, Mayank; Hansen, Per Christian; Nielsen, Hans Bruun.

    In: Journal of Physics D: Applied Physics, Vol. 43, No. 19, 2010, p. 195501.

    Publication: Research - peer-reviewJournal article – Annual report year: 2010

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