COMPUTER GRAPHICS CISC440 CISC640 Instructor: Prof. Chandra Kambhamettu TA: Mani Thomas Intructor Office Hours: Wed. 2-4pm Smith403 ppt slides design credits: Chaitra Murthy (MS, UD) Figures: Hearn and Baker, U of Illinois INTRODUCTION COMPUTER GRAPHICS IMAGE PROCESSING
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Instructor: Prof. Chandra Kambhamettu
TA: Mani Thomas
Intructor Office Hours:
ppt slides design credits:
Chaitra Murthy (MS, UD)
Hearn and Baker, U of Illinois
Image processing is the converse process of computer graphics. Image processing and Understanding areas concentrate on analysis and reconstruction of 2D or 3D objects from their pictures
Computer vision further more extends research into understanding images. It is the construction of explicit, meaningful descriptions of physical objects from images.
why is it so popular
-A picture is worth a 10000 words!!!!!
It provides the most natural means of communicating with a computer, since our perception abilities arebetter with pictures than with words
It is one of the rare fields that has many commercial interests as there are research interests
(Thanks to Hollywood!!)
Computer graphics is so much in demand because of its limitless variety of applications
Medium to convey information
Many applications exist in engineering and architecture (CAD,VLSI)
Graphical flight simulators, games, commercials and educational software
Visual paradigms in user interaction: windows, icons, menus etc.
Virtual Reality Applications
The wooden mirror has 830 pieces of wood each about 40 mm square arranged into an octagon of 35 x 29 .
Each piece of wood is connected to a servo motor that can tilt it about 30º up and down.
The whole piece is lit from above with a few spot lights, in a way that when the pieces are tilted upwards they become brighter, and when they tilt downwards they become darker. The servo motors can position each piece in 255 positions theoretically yielding 255 gray levels per piece.
In the center of the Mirror a tiny video camera is concealed.