crta
Hrvatska znanstvena Sekcija img
bibliografija
3 gif
 Naslovna
 O projektu
 FAQ
 Kontakt
4 gif
Pregledavanje radova
Jednostavno pretraživanje
Napredno pretraživanje
Skupni podaci
Upis novih radova
Upute
Ispravci prijavljenih radova
Ostale bibliografije
Slični projekti
 Bibliografske baze podataka

Pregled bibliografske jedinice broj: 457668

Zbornik radova

Autori: Rebić, Veseljka; Šetić, Mia; Domijan, Dražen
Naslov: Brightness estimation in a neural network model with presynaptic inhibition
Izvornik: Fechner Day Proceedings of the 25th Annual Meeting of the International Society for Psychophysics / Elliott, M.A. ; Antonijevic, S. Berthaud ; Mulchay, P ; Martyn, C ; Bargery, B ; Schmidt, H ; (ur.). - Galway : International Society for Psychophysics , 2009. 359-362.
Skup: Fechner Day 2009
Mjesto i datum: Irska, 21-24.09.2009.
Ključne riječi: jarkost; svjetlina; percpecija; neuralna mreža
Sažetak:
Recent psychophysical and neurophysiological investigations showed that visual system encodes luminance and use it to estimate illumination and surface brightness. We proposed a novel neural model for luminance coding based on recurrent inhibition, from the retinal ganglion cells to the axons of the bipolar cells, which modulates the amount of sensory input that ganglion cells receive (Sagdullaev et al., 2006). Extended version of the model, where the amount of presynaptic inhibition is made proportional to the maximum luminance in the visual scene, implements gain control mechanism which adjusts the raw luminance into a measure of brightness of surface. Computer simulations showed that the model scales brightness estimates consistent with the highest-luminance-as-white anchoring rule (Gilchist et al., 2004). Simulations also showed that the model is able to act as a change detector when the presynaptic inhibition temporally lags behind the excitatory input to the ganglion cell.
Vrsta sudjelovanja: Poster
Vrsta prezentacije u zborniku: Ostalo
Vrsta recenzije: Međunarodna recenzija
Projekt / tema: 130-0000000-3295
Izvorni jezik: ENG
Kategorija: Znanstveni
Znanstvena područja:
Psihologija
Upisao u CROSBI: divanec@ffzg.hr (divanec@ffzg.hr), 31. Ožu. 2010. u 14:46 sati



Verzija za printanje   za tiskati


upomoc
foot_4