Motion Vision Research

Motion Vision Research

More Second-Order Motion Demos

The movies below give a collection of often used second-order motion stimuli, based upon random-pixel texture.

Phi (1st order)
Mu (2nd order) *)

*) First described by Lelkens & Koenderink,Vision research 24, pp.1083-1090 (1984)

Temporal Texture
Spatial Texture

Theta (1st opposite 2nd order) *)
Reversed Theta
(1st and 2nd order, different speed)

*) First described by Zanker, Naturwissenschaften 77, pp.243-246 (1990)

Luminance modulation (1st order) on static carrier
Contrast modulation (2nd order) on static carrier
Luminance modulation (1st order)
on dynamic carrier *)
Contrast modulation (2nd order)
on dynamic carrier *)

*) e.g. Smith & Ledgeway, Vision Research 37, pp. 45-62 (1997)