December 2007
Volume 7, Issue 15
Free
OSA Fall Vision Meeting Abstract  |   December 2007
A model for early motion compensation
Author Affiliations
  • Albert Ahumada
    NASA Ames Research Center
Journal of Vision December 2007, Vol.7, 50. doi:10.1167/7.15.50
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to Subscribers Only
      Sign In or Create an Account ×
    • Get Citation

      Albert Ahumada; A model for early motion compensation. Journal of Vision 2007;7(15):50. doi: 10.1167/7.15.50.

      Download citation file:


      © ARVO (1962-2015); The Authors (2016-present)

      ×
  • Supplements
Abstract

Motion compensation is similar to stereo disparity evaluation in that a multitude of possible motions or possible disparities must be considered. Freeman and Ohzawa (1990) showed that pairs of Gabor receptive fields in quadrature phase can convert the disparity search problem into a phase difference measurement problem. Qian and Anderson (1997) use this representation to compute both stereo disparity and motion energy. A mechanism is proposed for early motion compensation (blur reduction) in visual cortex using quadrature pairs of receptive fields and a motion signal. Image samples are temporally combined by oscillating filters tuned for the image speed and the receptive field spatial frequency. A 1-D version of the model is simulated with a Gabor pyramid and single-tuned oscillators.

Ahumada, A. (2007). A model for early motion compensation [Abstract]. Journal of Vision, 7(15):50, 50a, http://journalofvision.org/7/15/50/, doi:10.1167/7.15.50. [CrossRef]
×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×