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  Velocity perception in 3-D environments

Distler, H., & Bülthoff, H. (1996). Velocity perception in 3-D environments. Poster presented at 19th European Conference on Visual Perception (ECVP 1996), Strasbourg, France.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-EB30-1 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-9BC1-1
Genre: Poster

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 Creators:
Distler, HK1, 2, Author              
Bülthoff, HH1, 2, Author              
Affiliations:
1Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

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 Abstract: Velocity perception has been investigated in many experiments with stimuli moving in the picture plane (2-D). For example, experiments with sine-wave gratings have shown that high-frequency patterns are perceived as moving faster than low-frequency patterns, and that high-contrast patterns are perceived as moving faster than low-contrast patterns. We investigated the influence of contrast and spatial frequency on perceived velocity in an open-loop driving simulation to determine whether contrast and spatial frequency account for differences in perceived velocity in complex 3-D environments. The simulated scene consisted of a textured road flanked by two meadows. We used road surface textures with different contrast and spatial frequency contents. In a 2AFC paradigm participants were simultaneously presented two driving simulation sequences depicting vehicles moving at different velocities on roads with different surface textures. Participants judged which vehicle was moving faster. Using an adaptive staircase procedure we determined the point of subjective equality for roads with different surface textures. The results show that perceived velocity in a driving simulation does depend on contrast and spatial frequency of the surface texture. Perceived velocity can be increased by increasing the contrast or the relative amount of high spatial frequencies in the surface texture. The relevance of these results for the design of driving simulators is discussed.

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 Dates: 1996-09
 Publication Status: Published in print
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 Rev. Type: -
 Identifiers: BibTex Citekey: 2130
DOI: 10.1068/v96p0102
 Degree: -

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Title: 19th European Conference on Visual Perception (ECVP 1996)
Place of Event: Strasbourg, France
Start-/End Date: 1996-09-09 - 1996-09-13

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Title: Perception
Source Genre: Journal
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Publ. Info: London : Pion Ltd.
Pages: - Volume / Issue: 25 (ECVP Abstract Supplement) Sequence Number: - Start / End Page: 37 Identifier: ISSN: 0301-0066
CoNE: https://pure.mpg.de/cone/journals/resource/954925509369