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WOLFRAM|DEMONSTRATIONS PROJECT

Motion/Pursuit Law in 2D (Visual Depth Perception 3)

​
time t
-5
scale
125
This Demonstration computes the motion/pursuit law in the two-dimensional horizontal fixation plane of the eyes. The observer is looking mainly at F on the vertical axis, but also sees D as he translates to the right at speed equal to the interocular distance per second.
We do not know a theoretical explanation for the rough approximation of the peak motion pursuit law by the 2D relative distance, but this Demonstration compares
dθ
dβ
(0)
,
dθ
dβ
(
t
c
)
, and the 2D signed relative distance,
±
|D-F|
f
. It also lets you vary time and compare the motion/pursuit law at other times. You can drag the distractor point and the fixate distance is variable.
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