Natural scene statistics relate to perceptual salience of second-, third-, and fourth-order spatial correlations
- Ann M Hermundstad†1Email author,
- John Briguglio†1,
- Mary M Conte2,
- Jonathan D Victor2,
- Gasper Tkacik†3 and
- Vijay Balasubramanian†1
© Hermundstad et al; licensee BioMed Central Ltd. 2013
Published: 8 July 2013
Natural Image Analysis: 88 grayscale images were block averaged in N × N patches to remove camera pixel matrix artifacts and divided into R × R patches. Image patches were whitened and binarized at their pixel intensity median. Psychophysical Analysis: Subjects were asked to identify a target (4-alternative forced choice) in brief (120-160 ms) presentations of 64 × 64-check binary images subtending 15 × 15deg. The target/background distinction was defined by a specific set of local image statistics, whose strengths were varied parametrically across trials .
- Tkacik G, Prentice JS, Victor JD, Balasubramanian V: Local statistics in natural scenes predict the saliency of synthetic textures. Proc Natl Acad Sci USA. 2010, 107 (42): 18149-18154. 10.1073/pnas.0914916107.PubMed CentralView ArticlePubMedGoogle Scholar
- Victor JD, Conte MM: Local image statistics: maximum-entropy constructions and perceptual salience. J Opt Soc Am A. 2012, 29: 1313-1345. 10.1364/JOSAA.29.001313.View ArticleGoogle Scholar
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