Loading Events

« All Events

Convolutional Dictionary Learning for Tomographic Reconstruction (Cristina Garcia-Cardona, LANL)

November 28 @ 4:15 pm - 5:15 pm

Convolutional sparse representation is an efficient tool for computing sparse representations for entire signals in terms of sums of a set of convolutions with dictionary filters. Unlike representations that are based on overlapping image patches, the convolutional representation optimizes over the entire image, yielding representations that are very sparse both spatially and across the filters. This technique has been successfully applied to natural images, video and speech in tasks as diverse as denoising, classification or superresolution. In this work, we develop a convolutional dictionary learning framework for tomographic reconstruction. We apply the technique to simulated parallel beam tomography data and show that its performance is comparable to the state-of-the-art reconstruction techniques.

Details

Date:
November 28
Time:
4:15 pm - 5:15 pm
Event Category:

Other

Speaker Name
Cristina Garcia-Cardona

Venue

Argue Auditorium, Pomona College
610 N. College Ave.
Claremont, CA 91711 United States
+ Google Map

Details

Date:
November 28
Time:
4:15 pm - 5:15 pm
Event Category:

Other

Speaker Name
Cristina Garcia-Cardona

Venue

Argue Auditorium, Pomona College
610 N. College Ave.
Claremont, CA 91711 United States
+ Google Map