Mallot, Hanspeter A.; John S. Allen (trans.);
Computational Vision: Information Processing in Perception and Visual Behavior
MIT Press, 2000, 296 pages [gbook]
ISBN 0262133814, 9780262133814
topics: | vision | psychology | cognitive | perception | language
Adopts the Poggio view of vision as "inverse optics" - i.e. given the image to infer the state of the world. Since this is an ill-posed problem, need some assumptions. The task is to learn which assumptions. Illusions are a result of the failure of some of these assumptions - e.g. the Kaniszka triangle is a result of vision being tuned to assuming occluding shapes are continuous.
,-------------ORGANISM------------.
| |
| CNS |
Senses -----> Info Proc ----> Effectors
/ |\ cognition / | |
/ | \ / | |
| | \ / | /|
| | `-----> Homeostasis ----' | / |
| | | / |
| ---------------------------------' / |
| / |
o<-----Acquisitive---------------------' |
| Behaviour Behavior: Locomotion,
| Manipulation, Feeding,
| Reproductive, Social etc
| /
| /
`--------------- ENVIRONMENT -------------'
The Perception-action cycle. The organism is the box on top, with the
CNS and homeostasis as part of it. The senses and effectors are its
interface to the outside. Three feedback loops - internal regulation
(homeostasis), sensory-motor and acquisitive behaviour (e.g. eye
movement), and by altering the environment through own actions.
Senses: vision, hearing, smell taste,
touch, posture and balance as well as proprioception) provide
information about it's their own poses and orientations from the outside
world.
Functions of the Brain:
Sensory-Motor
Behaviour (largely stimulus-response)
Memory : declarative: events, faces, objects, rules
procedural: implicit knowledge - association, habits, skills
Cognition, Motivation: abilities requiring internal models or
representations. Behaviour guided by cognition requires current
goals in addn to stim-response - the goal-reaching knowledge is
stored in declarative memory.