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Object and scene analysis by saccadic eye-movements: an investigation with higher-order statistics

Krieger, Gerhard and Rentschler, Ingo and Hauske, Gert and Schill, Kerstin and Zetzsche, Christoph (2000) Object and scene analysis by saccadic eye-movements: an investigation with higher-order statistics. Spatial Vision, 13 (2-3), pp. 201-214. VSP.

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Based on an information theoretical approach, we investigate feature selection processes in saccadic object and scene analysis. Saccadic eye movements of human observers are recorded for a variety of natural and artificial test images. These experimental data are used for a statistical evaluation of the fixated image regions. Analysis of second-order statistics indicates that regions with higher spatial variance have a higher probability to be fixated, but no significant differences beyond these variance effects could be found at the level of power spectra. By contrast, an investigation with higher-order statistics, as reflected in the bispectral density, yielded clear structural differences between the image regions selected by saccadic eye movements as opposed to regions selected by a random process. These results indicate that nonredundant, intrinsically two-dimensional image features like curved lines and edges, occlusions, isolated spots, etc. play an important role in the saccadic selection process which must be integrated with top-down knowledge to fully predict object and scene analysis by human observers.

Item URL in elib:https://elib.dlr.de/20732/
Document Type:Article
Additional Information:reprint available by gerhard.krieger@dlr.de
Title:Object and scene analysis by saccadic eye-movements: an investigation with higher-order statistics
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Rentschler, IngoInstitut für Medizinische Psychologie, Ludwig-Maximilians-Universität München, GermanyUNSPECIFIEDUNSPECIFIED
Hauske, GertLehrstuhl für Nachrichtentechnik, Technische Universität München, GermanyUNSPECIFIEDUNSPECIFIED
Schill, KerstinArbeitsgruppe Kognitive Neuroinformatik, Universität Bremen, GermanyUNSPECIFIEDUNSPECIFIED
Zetzsche, ChristophArbeitsgruppe Kognitive Neuroinformatik, Universität Bremen, GermanyUNSPECIFIEDUNSPECIFIED
Journal or Publication Title:Spatial Vision
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 201-214
Keywords:higher-order statistics, nonlinear image processing, saccadic eye movements, object recognition, scene analysis, natural images
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Entwicklung eines Mini-SAR (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Deposited By: Krieger, Dr.-Ing. Gerhard
Deposited On:04 Jan 2006
Last Modified:27 Apr 2009 04:47

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