Pregled bibliografske jedinice broj: 244520
Space-time Variant Blind Sources Separation with Additive Noise
Space-time Variant Blind Sources Separation with Additive Noise // Lecture notes in computer science, 3195 (2004), 240-247 doi:10.1007/978-3-540-30110-3_31 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 244520 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Space-time Variant Blind Sources Separation with Additive Noise
Autori
Kopriva, Ivica ; Szu, Harold
Izvornik
Lecture notes in computer science (0302-9743) 3195
(2004);
240-247
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Independent component analysis ; Helmholtz free energy
Sažetak
We propose a method for solving linear space-time variant blind source separation (BSS) problem with additive noise, x=As+n, on the “ pixel-by-pixel” basis i.e. assuming that unknown mixing matrix is different for every space or time location. Solution corresponds with the isothermal-To equilibrium of the free energy H=U-ToS contrast function where U represents the input/output energy exchange and S represents the Shannon entropy. Solution of the inhomogeneous equation (data model with additive noise) is obtained by augmenting inhomogeneous equation into homogeneous “ noise free” equation. Consequently, data model with additive noise can be solved by algorithm for the noise free space-time variant BSS problems, [1], [2]. We demonstrate the algorithm capability to perfectly recover images from the space variant mixture of two images with additive noise.
Izvorni jezik
Engleski
Znanstvena područja
Elektrotehnika
POVEZANOST RADA
Ustanove:
Fakultet elektrotehnike i računarstva, Zagreb
Profili:
Ivica Kopriva
(autor)
Citiraj ovu publikaciju:
Časopis indeksira:
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
