Lecture 1: Introduction to Biological Vision - Vision Research ...

Efficient coding and higher orderEfficient (“predictive”) coding givenredundancies in natural images. E.g.L(x,y) can be predicted by L(x’,y’) whenx’ and y’ are near x and y.dependenciesGives rise to neuralnetwork models that areclosely related toprinciples of imagecompression developed insignal processing theory,as in “difference coding”R(x) = L(x) - L(x-1)which exploits theobservation that L(x) isoften ~ L(x-1)Kersten, D. (1987). Predictability and redundancy ofnatural images. J Opt Soc Am A, 4(12), 2395-2400.54Wednesday, August 29, 12