Signal Processing Seminar
- Friday, 7 December 2018
- LB 1.220 van der Poelzaal
Image Reconstruction Using Training ImagesPer Christian Hansen
Technical University of Denmark
Priors are essential for computing stable solutions to ill-posed problems, and they take many different forms. Here we consider priors in the form of cross-section images of the object, and this information must be used in a fast, reliable, and computationally efficient manner. We describe an algorithmic framework for this: From a set of training images we use techniques from machine learning to form a dictionary that captures the desired features, and we then compute a reconstruction with a sparse representation in this dictionary. We describe how to stably compute the dictionary through a regularized non-negative matrix factorization, and we study how this dictionary affects the reconstruction quality. Simulations show that for textural images our approach is superior to other methods used for limited-data problems.
About the speakerProfessor Per Christian Hansen has worked with numerical regularization algorithms for 30 years, and he has published 4 books and 100+ papers in leading journals. He has developed a number of software packages, of which Regularization Tools (now in its 4th version) is a popular toolbox for analysis and solution of discrete inverse problems. His current research projects involve algorithms for tomographic reconstruction and iterative image deblurring algorithms. He is a SIAM fellow in recognition of his work on inverse problems and regularization.Additional information ...
- 17 -- 17 May 2019
- TU Delft Auditorium
Inauguration Earl McCune and Cicero Vaucher
Earl McCune, Cicero Vaucher
Who's talking, who's listening?
- Fri, 17 May 2019
- EEMCS, lecture hall Ampere
Who's talking? Who's listening?
Presenters TU Deflt, University Twente, Technical University Eindhoven
Wireless ommunications: present and future
In honor of the inauguration of professor Earl Mc Cune and professor Cicero Vaucher.
- 4 -- 5 Jul 2019
- Aula Conference Centre of TUDelft
PRORISC and SAFE 2019
PRORISC and SAFE 2019
PRORISC is an annual conference on Integrated Circuit (IC) design and SAFE is an annual conference on Microsystems, Materials, Technology and RF-devices.
- Mon, 8 Jul 2019
- Aula Senaatszaal