Detection of first-order structure in optic flow fields

Vision Research
S F Te PasJ J Koenderink

Abstract

We measured psychophysical thresholds for the detection of four different optic flow components in the presence of a translational velocity. We also measured thresholds for detection of rotation in the presence of expansion and for expansion in the presence of rotation. Our stimuli consisted of sparse random dot patterns. Detection thresholds are similar for all four optic flow components. Thus, our experiments indicate that our subjects use a factor that is similar in all first-order flow components, namely the relative orientation of the velocity vectors. First-order components can be extracted independently of both each other and translational velocity.

References

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Citations

Sep 30, 1998·Current Opinion in Neurobiology·L M Vaina
Apr 30, 1999·Network : Computation in Neural Systems·S A Beardsley, L M Vaina
Jun 19, 2008·Annual Review of Neuroscience·Kenneth H Britten
May 26, 1998·Perception & Psychophysics·V J PerottiF Phillips
May 1, 1997·Perception & Psychophysics·S F PasJ J Koenderink
Apr 1, 1996·Perception & Psychophysics·S F te PasJ J Koenderink
Jul 19, 2003·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·José F Barraza, Norberto M Grzywacz
Aug 8, 2015·Science Translational Medicine·Shannon P QuinnS Chakra Chennubhotla
Mar 23, 2005·Vision Research·Scott A Beardsley, Lucia M Vaina
Nov 3, 1998·Vision Research·D C BurrL M Vaina
Sep 1, 1996·Vision Research·V Virsu, R Hari
Nov 1, 1996·Vision Research·A M KappersA J van Doorn
Jun 21, 2005·Vision Research·José F Barraza, Norberto M Grzywacz
Feb 24, 2016·PloS One·Alexandra S Mueller, Brian Timney
Jul 5, 2005·Perception·Christos D Giachritsis, Mike G Harris

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