caa a22 4500 445294892 CHVBK 20180317142538.0 cr unu---uuuuu 170323e20100901xx s 000 0 eng 10.1007/s11571-010-9122-0 doi (NATIONALLICENCE)springer-10.1007/s11571-010-9122-0 Visual saliency: a biologically plausible contourlet-like frequency domain approach [Elektronische Daten] [Peng Bian, Liming Zhang] In this paper we propose a fast frequency domain saliency detection method that is also biologically plausible, referred to as frequency domain divisive normalization (FDN). We show that the initial feature extraction stage, common to all spatial domain approaches, can be simplified to a Fourier transform with a contourlet-like grouping of coefficients, and saliency detection can be achieved in frequency domain. Specifically, we show that divisive normalization, a model of cortical surround inhibition, can be conducted in frequency domain. Since Fourier coefficients are global in space, we extend to this model by conducting piecewise FDN (PFDN) using overlapping local patches to provide better biological plausibility. Not only do FDN and PFDN outperform current state-of-the-art methods in eye fixation prediction, they are also faster. Speed and simplicity are advantages of our frequency domain approach, and its biological plausibility is the main contribution of our paper. Springer Science+Business Media B.V., 2010 Visual saliency nationallicence Attention selection nationallicence Saliency map nationallicence Divisive normalization nationallicence Bian Peng Department of Electronic Engineering, Fudan University, 200433, Shanghai, China aut Zhang Liming Department of Electronic Engineering, Fudan University, 200433, Shanghai, China aut Cognitive Neurodynamics Springer Netherlands 4/3(2010-09-01), 189-198 1871-4080 4:3<189 2010 4 11571 https://doi.org/10.1007/s11571-010-9122-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11571-010-9122-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bian Peng Department of Electronic Engineering, Fudan University, 200433, Shanghai, China aut NATIONALLICENCE 700 1- Zhang Liming Department of Electronic Engineering, Fudan University, 200433, Shanghai, China aut NATIONALLICENCE 773 0- Cognitive Neurodynamics Springer Netherlands 4/3(2010-09-01), 189-198 1871-4080 4:3<189 2010 4 11571 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer