Motion, Pursuit, Fixate, and Distractor (Visual Depth Perception 2)

Requires a Wolfram Notebook System
Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.
This Demonstration shows the retinal motion and pursuit rates for your choice of and
in the case of a fixate and distractor on the
axis and an observer moving at 6.5 cm/sec (interocular distance per second) to the right on the
axis. The observer's eyes are "fixed" on the point
(the "fixate" point). "Fixation" means the ray from TextData["
"] through the eye node strikes the fovea at the center of the retina (see: Fixation and Distraction (Visual Depth Perception 5)).
Contributed by: Keith Stroyan (March 2011)
Open content licensed under CC BY-NC-SA
Snapshots
Details
This Demonstration is for the case of a fixate and distractor on the axis and an observer moving at speed 6.5 cm/sec (interocular distance per second) to the right on the
axis. Additional details of this framework are given in the Demonstration "Motion/Pursuit Law in 1D (Visual Depth Perception 1)". This Demonstration shows a different graphical representation of the dynamic quantities.
If you know , pursuit at speed
is given by the formula
at . Once you know
and
, time zero motion is given by the formula
.
All the points on the red line have the same M/P ratio and same relative depth. The brown curves have the same and the vertical blue lines have the same
.
The eye parameters ,
,
, etc. are described in the Demonstration "Eye Parameters (Visual Depth Perception 6)" in the Related Links.
Permanent Citation