Cue gradient and cue density interact in the detection and recognition of objects defined by motion, contrast, or texture.

Full Abstract

The human visual system is able to extract an object from its surrounding using a number of cues. These include foreground/background gradients in disparity, motion, texture, colour, and luminance. We have investigated normal subjects' ability to detect objects defined by either motion, texture, or luminance gradients. The effects of manipulating cue density and cue foreground/background gradient on both detection and recognition accuracy were also investigated. The results demonstrate a simple additive relationship between cue density and cue gradient across forms defined by motion, luminance, and texture. The results are interpreted as evidence for the notion that form parsing is achieved via a similar algorithm across anatomically distinct processing streams.

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Author information

Author/s: Bull, Neva J (NJ); Hunter, Mick (M); Finlay, David C (DC);

Affiliation: School of Behavioural Science, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia.

Journal and publication information

Publication Type: Journal Article

Journal: Perception (Perception), published in England. (Language: eng)

Reference: 2003-; vol 32 (issue 1) : pp 29-39

Dates: Created 2003/03/04; Completed 2003/04/29; Revised 2004/11/17;

PMID: 12613784, status: MEDLINE (last retrieval date: 11/6/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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