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Journal Article

Perception of spatiotemporal random fractals: an extension of colorimetric methods to the study of dynamic texture.

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Cunningham,  DW
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Citation

Billock, V., Cunningham, D., Havig, P., & Tsou, B. (2001). Perception of spatiotemporal random fractals: an extension of colorimetric methods to the study of dynamic texture. Journal of the Optical Society of America A, 18(10), 2404-2413.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-E340-A
Abstract
Recent work establishes that static and dynamic natural images have fractal-like 1/f spatiotemporal spectra. Artifical textures, with randomized phase spectra, and 1/f amplitude spectra are also used in studies of texture and noise perception. Influenced by colorimetric principles and motivated by the ubiquity of 1/f spatial and temporal image spectra, we treat the spatial and temporal frequency exponents as the dimensions characterizing a dynamic texture space, and we characterize two key attributes of this space, the spatiotemporal appearance map and the spatiotemporal discrimination function (a map of MacAdam-like just-noticeable-difference contours).