Abstract

We study the possibility of a metrical readout of velocity from an ensemble of Reichardt correlators. We show that with a suitable choice of spatial and temporal prefiltering of the correlator input it is possible to devise reliable (nonaliasing) velocity-tuned Reichardt detectors. However, because of the well-known covariance of spatial and velocity tuning of velocity detectors in biological motion vision, an ensemble consisting of these detectors has problems in extracting a pattern-invariant velocity. We find that pattern invariance of the motion estimate can be closely approximated with Reichardt correlators that sample the luminance pattern at more than the minimum number of two locations.

© 1994 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Accuracy of velocity estimation by Reichardt correlators

Ron O. Dror, David C. O’Carroll, and Simon B. Laughlin
J. Opt. Soc. Am. A 18(2) 241-252 (2001)

Elaborated Reichardt detectors

Jan P. H. van Santen and George Sperling
J. Opt. Soc. Am. A 2(2) 300-321 (1985)

Spatial and temporal parameters of motion detection in the peripheral visual field

Jan J. Koenderink, Andrea J. van Doorn, and Wim A. van de Grind
J. Opt. Soc. Am. A 2(2) 252-259 (1985)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (37)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription