Document Type
Article
Publication Date
1-31-2008
Publication Title
Journal of Vision
Department
Department of Computer Science
Abstract
We propose a measure of clutter for real images that can be used to predict search times. This measure uses an efficient segmentation algorithm (P. Felzenszwalb & D. Huttenlocher, 2004) to count the number of regions in an image. This number is not uniquely defined, however, because it varies with the scale of segmentation. The relationship between the number of regions and the scale of segmentation follows a power law, and the exponent of the power law is similar across images. We fit power law functions to the multiple scale segmentations of 160 images. The power law exponent was set to the average value for the set of images, and the constant of proportionality was used as a measure of image clutter. The same 160 images were also used as stimuli in a visual search experiment. This scale-invariant measure of clutter accounted for about 40% of the variance in the visual search times.
DOI
10.1167/8.1.23
Dartmouth Digital Commons Citation
Bravo, Mary J. and Farid, Hany, "A Scale Invariant Measure of Clutter" (2008). Dartmouth Scholarship. 3899.
https://digitalcommons.dartmouth.edu/facoa/3899
