Texture segmentation and pop-out from orientation contrast

doi:10.1016/0042-6989(91)90211-M

Vision Research

Volume 31, Issue 6, 1991, Pages 1073-1078

https://doi.org/10.1016/0042-6989(91)90211-M Get rights and content

Abstract

In arrays of oriented lines, a target at a different orientation is effortlessly detected; it “pops out” from the pattern. Similarly, textures with line arrays at different orientations seem to dissect into separate areas with the spontaneous percept of distinct borders between them. In recent models, these perceptual phenomena were linked to the pre-attentive detection of certain features and of first-order differences in their spatial distribution. In contrast, however, psychophysical experiments show that texture segmentation and visual pop-out arise from orientation differences rather than from the orientation features themselves, a view which is supported by neurophysiological data from the monkey visual cortex.

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Citation Excerpt :
The first process is called pre-attentive and is automatic, stimulus-driven, and determined by simple features of the stimulus (bottom-up); the second process is more flexible, guided by knowledge, experience, and current goals (top-down; e.g., Treisman & Gelade, 1980; Treisman, 1985; Treisman & Gormican, 1988; Wolfe, 1994; Quinlan, 2003). In most perceptual tasks both processes will interact; however, it is assumed that tasks which are sufficiently simple and automatic will involve only the so-called bottom-up component (Julesz, 1981; Treisman & Souther, 1985; Nothdurft, 1991; Turatto & Galfano, 2000; Saiki, Koike, Takahashi, & Inoue, 2005; Theeuwes, 2013). Such tasks lead to fast responses and can be performed in an automatic way without much cognitive effort.
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Texture segmentation and pop-out from orientation contrast

Abstract

Trends in Neuroscience

Vision Research

Computer Vision, Graphics, and Image Processing

Textural segmentation, second-order statistics and textural elements

Biological Cybernetics

Line segregation

Spatial Vision

Early vision and texture perception

Nature

Saccadic eye movements to targets defined by structure differences