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Signal Reconstruction via Compressive Sensing


Tralić, Dijana; Grgić, Sonja
Signal Reconstruction via Compressive Sensing // Proceedings of the 53rd International Symposium ELMAR-2011 / Božek, Jelena ; Grgić, Mislav (ur.).
Zagreb: Croatian Society Electronics in Marine, 2011. str. 5-9 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)


Naslov
Signal Reconstruction via Compressive Sensing

Autori
Tralić, Dijana ; Grgić, Sonja

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 53rd International Symposium ELMAR-2011 / Božek, Jelena ; Grgić, Mislav - Zagreb : Croatian Society Electronics in Marine, 2011, 5-9

ISBN
978-953-7044-12-1

Skup
International Symposium ELMAR

Mjesto i datum
Zadar, Republika Hrvatska, 14.-16.09.2011

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Compressive Sensing; Compressive Sampling; Sparsity; Compressibility; Random Projections; Nonlinear Reconstruction

Sažetak
Compressive sensing is a new approach of sampling theory, which assumes that signal can be exactly recovered from incomplete information. It relies on properties such as incoherence, signal sparsity and compressibility, and does not follow traditional acquisition process based on transform coding. Sensing procedure is very simple, nonadaptive method that employs linear projections of signal onto test functions. Set of test functions is arranged in the measurement matrix that allows acquiring random samples of original signal. Signal reconstruction is achieved from small amount of data by an optimization process which has the aim to find the sparsest vector with transform coefficients among all possible solutions. This paper gives an overview of compressive sensing theory, background, measurement and reconstruction processes. Reconstruction process was presented on a few types of signals at the end of this paper. Experimental results show that accurate reconstruction is possible for various type of signals.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Računarstvo



POVEZANOST RADA


Projekt / tema
036-0361630-1635 - Upravljanje kvalitetom slike u radiodifuziji digitalnog videosignala (Sonja Grgić, )
036-0982560-1643 - Inteligentno određivanje značajki slike u sustavima za otkrivanje znanja (Mislav Grgić, )

Ustanove
Fakultet elektrotehnike i računarstva, Zagreb