Motion/Pursuit Ratio and Depth in 2D (Visual Depth Perception 18)

Requires a Wolfram Notebook System
Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.
The relative error in using instead of the motion/pursuit law
is
. This Demonstration interactively computes these ratios at time zero, a variable time, and the peak time.
Contributed by: Keith Stroyan (March 2011)
Open content licensed under CC BY-NC-SA
Snapshots
Details
Experimental evidence suggests that people underestimate relative depth for distractors beyond the fixate (
) and overestimate closeness (or
for distractors nearer than the fixate. The motion/pursuit ratio has this relationship to the motion/pursuit depth formula, so it is possible that the ratio alone is a better estimate of the perceived depth.
The dark gray graph on the left is and the transparent colored graph is
. On the right, the light gray graph is the relative depth
; the colored graphs are
and
at the critical time where these quantities peak. For more on peak times see "Motion/Pursuit Law in 2D (Visual Depth Perception 3)" in Related Links.
Permanent Citation