The Eye.

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Presentation transcript:

The Eye

The Neuron Major parts of a neuron: Cell body Axon Terminal Synaptic cleft Dendrites

Projection from the Retina

Retinal Ganglion Cells Retinal Ganglion cells have receptive fields that exhibit a center-surround structure.

Major Cell Types in Retina Photoreceptors Bipolar Cells Horizontal Cells Amacrine Cells Retinal Ganglion Cells

Periodic Functions Periodic functions repeat with a given frequency: f(x) = Asin(2pwx) Amplitude x (deg) period Frequency = number of cycles per unit distance (deg or cm) Frequency = 1/period = w

Fourier decomposition Any real signal can be written as a sum of sine And cosine functions of different frequencies and amplitudes f(x) = 4/p(sin(f) + 1/3sin(3f) + 1/5sin(5f) + ...