Motion/Pursuit Ratio and Depth in 2D (Visual Depth Perception 18)
Motion/Pursuit Ratio and Depth in 2D (Visual Depth Perception 18)
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.
r=dθ/dα
dθ/dβ=r/(1-r)
(r-r/(1-r))/(r/(1-r))=-r