Abstract
In recent works, compressed sensing (CS) and convex opti- mization techniques have been applied to radio-interferometric imaging showing the potential to outperform state-of-the-art imaging algorithms in the field. We review our latest con- tributions [1, 2, 3], which leverage the versatility of convex optimization to both handle realistic continuous visibilities and offer a highly parallelizable structure paving the way to significant acceleration of the reconstruction and high-dimen- sional data scalability. The new algorithmic structure pro- moted in a new software PURIFY (beta version) relies on the simultaneous-direction method of multipliers (SDMM). The performance of various sparsity priors is evaluated through simulations in the continuous visibility setting, confirming the superiority of our recent average sparsity approach SARA.
| Original language | English |
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| Pages | 5407-5411 |
| Number of pages | 5 |
| DOIs | |
| Publication status | Published - 2014 |
| Event | 39th IEEE International Conference on Acoustics, Speech and Signal Processing 2014 - Florence, Italy, Florence, Italy Duration: 4 May 2014 → 9 May 2014 http://www.icassp2014.org/home.html |
Conference
| Conference | 39th IEEE International Conference on Acoustics, Speech and Signal Processing 2014 |
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| Abbreviated title | ICASSP 2014 |
| Country/Territory | Italy |
| City | Florence |
| Period | 4/05/14 → 9/05/14 |
| Other | ICASSP is the world's largest and most comprehensive technical conference focused on signal processing and its applications. The series is sponsored by the IEEE Signal Processing Society and has been held annually since 1976. The conference features world-class speakers, tutorials, exhibits, a Show and Tell event, and over 120 lecture and poster sessions.
ICASSP is a cooperative effort of the IEEE Signal Processing Society Technical Committees: Audio and Acoustic Signal Processing Bio Imaging and Signal Processing Design and Implementation of Signal Processing Systems Image, Video, and Multidimenional Signal Processing Information Forensics and Security Industry DSP Technology Standing Committee Machine Learning for Signal Processing Multimedia Signal Processing Sensor Array and Multichannel Signal Processing for Communications and Networking Signal Processing Education Standing Committee Signal Processing Theory and Methods Speech and Langauge Processing |
| Internet address |