Title :
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
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;
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
Print_ISBN :
0-7803-7612-9
DOI :
10.1109/IEMBS.2002.1053134
