A hypothesis of perceptual filling-in process for spatio-temporal frequency of dynamic textures

Yokota, M.; Yokota, Yasunari

doi:10.1109/iembs.2003.1280495

Cited by 2 publications

(3 citation statements)

References 12 publications

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“…For that reason, we had proposed a model that represents the filling-in process using a spatio-temporal power spectrum of the dynamic texture [5]. We introduced perceptual power, which represents visibility of the filling-in target distinguished from the surrounding dynamic texture.…”

Section: Model Of Filling-in Processmentioning

confidence: 99%

“…(1). In the calculation we used visual spatio-temporal frequency sensitivity which we had reported [5] (Fig. 5(b)).…”

Section: Estimation Of Perceptual Power Time Coursesmentioning

confidence: 99%

“…We have already introduced a criterion which represents the degree of visibility of the filling-in target; it is called the perceptual power, and then proposed a model that explains filling-in achieving process form the perceptual power point of view [5]. In this study, we measure time to filling-in for each of surrounding moving textures which have different spatiotemporal power spectrum.…”

Section: Introductionmentioning

confidence: 99%

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Spatio-temporal frequency characteristics of perceptual filling-in

Yokota

Yokota²

The 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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When a small object surrounded by a dynamic texture is presented in human peripheral vision, the object is perceived to fade and disappear within a few seconds, under certain conditions. This phenomenon is called perceptual filling-in. Characteristics of filling-in for various kinds of surrounding textures is important to understand the manner of information processing in human vision, because filling-in has been considered that it greatly contributes to capturing external visual information efficiently. From this point of view, we have proposed a model of the filling-in process to address the phenomenon when a small homogeneous area (filling-in target), which is surrounded by spatio-temporal frequency limited random-dot dynamic textures, is presented to an observer's peripheral vision (Proc. IC-EMBS2003). This study reports measurement of time to filling-in for various surrounding dynamic textures that have different spatio-temporal frequency. Applying these results to the proposed model, we estimate the time course of distinguishability of the target from surround (perceptual power). The estimate indicates that if spatial frequency of dynamic textures is low, lower spatio-temporal sensitivity decreases perceptual power more rapidly. However, the opposite property appears if spatial frequency is high.

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Section: Model Of Filling-in Processmentioning

confidence: 99%

“…(1). In the calculation we used visual spatio-temporal frequency sensitivity which we had reported [5] (Fig. 5(b)).…”

Section: Estimation Of Perceptual Power Time Coursesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Spatio-temporal frequency characteristics of perceptual filling-in

Yokota

Yokota²

The 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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Facilitation of perceptual filling-in for spatio-temporal frequency of dynamic textures

Yokota

Yokota²

2005

2005 IEEE Engineering in Medicine and Biology 27th Annual Conference

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Objects are perceived to fade and disappear within a few seconds under certain conditions when a small object surrounded by a moving texture is presented in human peripheral vision. This phenomenon is called perceptual filling-in or fading. Investigation of filling-in properties is important to understand visual information capture and processing. Previous studies have adopted filling-in time to evaluate the facilitation of filling-in. From this viewpoint, we propose a model of the filling-in process to address the phenomenon by which a small homogeneous area (filling-in target), which is surrounded by spatio-temporal frequency limited random-dot dynamic textures, is presented to an observer's peripheral vision (Proc.IC-EMBS2003). The model expresses target distinguishability from the surrounding texture. This study measured time to filling-in for various spatio-temporal frequencies of target-surrounding dynamic textures. Spatio-temporal frequency sensitivity of human vision was also estimated. Applying these results to the proposed model, it was suggested that M-channel pathway of LGN facilitates perceptual filling-in. In contrast, the P-channel pathway is assumed not to facilitate, but rather inhibit, filling-in.

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A hypothesis of perceptual filling-in process for spatio-temporal frequency of dynamic textures

Cited by 2 publications

References 12 publications

Spatio-temporal frequency characteristics of perceptual filling-in

Spatio-temporal frequency characteristics of perceptual filling-in

Facilitation of perceptual filling-in for spatio-temporal frequency of dynamic textures

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