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2015 | OriginalPaper | Buchkapitel

7. Contextual Factors, Continued

verfasst von : Robert Earl Patterson, Ph.D.

Erschienen in: Human Factors of Stereoscopic 3D Displays

Verlag: Springer London

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Abstract

This chapter covers a unique contextual factor that affects stereo viewing: perceptual constancy. Here, the general concept of perceptual constancy is used to represent a set of three perceptual constancies: size constancy, speed constancy, and depth constancy. These constancies represent stable and veridical perceptions of size, speed, and/or depth when objects in the natural world are seen. Such stable and verdical perceptions occur via a visual cue-integration process that combines information about retinal size, retinal speed, or retinal (binocular) disparity with visual estimates of egocentric viewing distance. Perceptual constancy is a ‘contextual’ factor because it involves the surrounding conditions that exist (e.g., distance cues) when someone views a stereo display.

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Metadaten
Titel
Contextual Factors, Continued
verfasst von
Robert Earl Patterson, Ph.D.
Copyright-Jahr
2015
Verlag
Springer London
DOI
https://doi.org/10.1007/978-1-4471-6651-1_7