Day 4_Part_1 - 4 Structure of Eye (cont) cornea clear...

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1 Appearance of Objects object appearance depends on three factors: lighting material properties viewer properties for the most part, graphics techniques do not account for the properties of the viewer example: for the synthetic camera, properties of film are not modeled example: for a human observer, properties of human visual system (eye and brain) are not modeled
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2 Human Vision it is useful (and interesting) to study human vision to understand the generation and appearance of computer images vision is the inverse problem of graphics graphics: how do we describe the 3D (4D if we consider time) world to produce a 2D image? vision: given a 2D image, what can we infer about the 3D/4D world? the eyes and brain comprise the human visual system we will only study the eye
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3 Structure of the Eye
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Unformatted text preview: 4 Structure of Eye (cont) cornea clear coating over front of eye two major purposes: protects internal structure focusing of light (cornea is strongest focusing element in the eye) iris colored annulus between cornea and lens changes the size of the pupil to allow more or less light into the eye 5 Structure of the Eye (cont) lens clear elastic focusing element muscles stretch and compress the lens to help focus light (elasticity diminishes with age) retina thin layer of cells covering approximately 200 degrees on the back of the eye two types of photosensitive cells in retina: cones: sensitive to color light rods: sensitive to light intensity only (not color) but 10 times more sensitive than cones...
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This note was uploaded on 02/13/2012 for the course CSE 4431 taught by Professor Burton during the Winter '12 term at York University.

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Day 4_Part_1 - 4 Structure of Eye (cont) cornea clear...

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