PSYC2071 Lecture Notes - Lecture 10: Optical Flow, Biological Motion, Retina
Document Summary
We must consider how such motion relates to the distal scene. Changes in position over time as we move about the world. A useful way of characterising the spatial pattern of motion is a vector field. If you are moving faster, you have longer arrows etc. Characteristic vector fields in optic flow (lappe et al. Here is an example of three different vector fields: The images represent a person (circle) moving straight ahead in three different e through a cloud of dots (b) or towards a textured wall (c) ent environments i. e. moving across a flat plane (a), The images represent a person (circle) moving straight ahead in three different e through a cloud of dots (b) or towards a textured wall (c) The lines behind the dot (firework like image) show the image motion propertie. Gets much more complex when eye movements are considered. Focus of expansion: where optic flow is at a minimum.
