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Texture fields and texture flows: Sensitivity to differences

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image of Spatial Vision
For more content, see Multisensory Research and Seeing and Perceiving.

There are two large classes of textures, those with an overall orientation structure (texture flows) and those without (texture fields). We investigate human sensitivity to detecting a patch of texture field within a texture flow psychophysically by using random not Moiré patterns. The resultant sensitivity, as a function of patch-size and path-length, is then related to a computational model of orientation selection, which reveals a connection between texture structure and the estimation of curvature. Finally, the connection back to curvature is confirmed by demonstrating a similarity between the patch sensitivity data and previous data on sensitivity to corners in flow patterns.

Affiliations: 1: Computer Vision and Robotics Laboratory, McGill Research Centre for Intelligent Machines, McGill University, Montréal, Quebec, Canada


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