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Proceedings Paper

Retinex processing from the fMRI study on V4: artistic research of colored picture using functional MRI
Author(s): Yasuyo G. Ichihara; Satoshi Nakadomari; Hiroaki Takeuchi; Satoru Miyauchi; Kenji Kitahara
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Paper Abstract

Artists can imagine 2 kinds of coloured scenes with no recognizable objects. One is the abstract picture such as colour Mondrian, which includes geometric pattern: rectangles, circles and crosses. Another is the decorative texture such as Japanese traditional cloud pattern which is colour camouflage pattern and does not include geometric pattern. We created these 2 kinds of colour dot pattern stimuli composed of 4 iso-luminance colours and the same area and an achromatic version. These functional magnetic resonance imaging stimuli reveal multiple colour-sensitive areas in human ventral occipitotemporal cortex. The results showed that area V4 is highly activated by the stimulus of the abstract picture such as rectangle pattern and spiral but little activated by the stimulus of the decorative texture such as random colour dot picture and cloud pattern. We suggest V4 is activated by figures composed of colour dots with eye-like shape such as disks, crosses, gratings, spirals, and windmill-like figures, and V4 has low response to the camouflage figure in which colour dots do not include eye-like shapes.

Paper Details

Date Published: 30 May 2002
PDF: 12 pages
Proc. SPIE 4662, Human Vision and Electronic Imaging VII, (30 May 2002); doi: 10.1117/12.469541
Show Author Affiliations
Yasuyo G. Ichihara, Hosen-Gakuen College (Japan)
Satoshi Nakadomari, Kanagawa Rehabilitation Hospital and Jikei Univ. School of Medicine (Japan)
Hiroaki Takeuchi, Kanagawa Rehabilitation Hospital (Japan)
Satoru Miyauchi, Communications Research Lab. (Japan)
Kenji Kitahara, Jikei Univ. School of Medicine (Japan)


Published in SPIE Proceedings Vol. 4662:
Human Vision and Electronic Imaging VII
Bernice E. Rogowitz; Thrasyvoulos N. Pappas, Editor(s)

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