Modeling Boundary Vector Cell Firing Given Optic Flow as a Cue
Figure 8
Drawing of the spherical camera model and an analytical flow vector that arises if the entire model is moving by the linear velocity
and rotating around the y-axis by
.
For this paper we use the left-handed-coordinate system with the x-axis pointing to the right, the y-axis
pointing upward, and the z-axis
pointing forward. The location
is described by the angles
and
together with its distance
from the origin. Our spherical model describes the flow vector
by its angular, temporal differentials
and
- not depicted in the drawing for clarity.