The effect of spatio-temporal frequency of dynamic texture on perceptual filling-in

Author

Yokota, M. ; Yokota, Y.

Author_Institution

Dept. of Inf. & Culture, Nagoya Bunri Univ., Aichi, Japan

Volume

3

fYear

2002

fDate

23-26 Oct. 2002

Firstpage

1997

Abstract

Humans do not see scotomas shaded by the optical disk and blood vessels on retina. Texture of surrounding scotomas fills in to occupy the scotoma area. Similarly, when viewing a monochromatic figure surrounding dynamic textured background in monocular peripheral vision, background texture appears to fill into the figure. To investigate spatial and temporal frequency characteristics of the filling-in process, we measured time to filling-in when a gray figure surrounding dynamic random-dot texture with limited bandwidth of spatiotemporal frequency was presented in peripheral vision of subjects. Based on subject reports, a model of filling-in mechanism is proposed. The model is represented by the spatial and temporal perceptual power of dynamic texture. Model validity is verified by applying measured data to the model.

Keywords

blood vessels; image texture; physiological models; visual perception; background texture; blood vessels; dynamic texture; gray figure; monochromatic figure; monocular peripheral vision; optical disk; perceptual filling-in; random-dot texture; retina; scotomas; spatio-temporal frequency; Bandwidth; Biomedical imaging; Blood vessels; Frequency measurement; Humans; Information science; Pixel; Psychology; Retina; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology, 2002. 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference, 2002. Proceedings of the Second Joint

ISSN

1094-687X

Print_ISBN

0-7803-7612-9

Type

conf

DOI

10.1109/IEMBS.2002.1053134

Filename

1053134