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Реферат

 

на тему:

 

Computer graphics

 

HYPERLINK

"http://upload.wikimedia.org/wikipedia/commons/5/5f/Utah_teapot_simple_2

.png"

 

Contents

 

Introduction

 

Overview

 

History

 

Subfields in computer graphics

 

Geometry

 

Animation

 

Rendering

 

Other subfields

 

Computer graphics is a sub-field of computer science which studies

methods for digitally synthesizing and manipulating visual content.

Although the term often refers to the study of three-dimensional

computer graphics, it also encompasses two-dimensional graphics and

image processing.

 

 

A modern render of the Utah teapot, an iconic model in 3D computer

graphics created by Martin Newell in 1975.

 

Overview

 

Computer graphics studies the manipulation of visual and geometric

information using computational techniques. It focuses on the

mathematical and computational foundations of image generation and

processing rather than purely aesthetic issues. Computer graphics is

often differentiated from the field of visualization, although the two

fields have many similarities.

 

Connected studies include:

 

Scientific visualization

 

Information visualization

 

Computer vision

 

Image processing

 

Computational Geometry

 

Computational Topology

 

Applied mathematics

 

Applications of computer graphics include:

 

Special effects

 

Visual effects

 

Video games

 

Digital art

 

History

 

One of the first displays of computer animation was Futureworld (1976),

which included an animation of a human face and hand — produced by Ed

Catmull and Fred Parke at the University of Utah.

 

There are several international conferences and journals where the most

significant results in computer graphics are published. Among them are

the SIGGRAPH and Eurographics conferences and the Association for

Computing Machinery (ACM) Transactions on Graphics journal. The joint

Eurographics and ACM SIGGRAPH symposium series features the major venues

for the more specialized sub-fields: Symposium on Geometry

Processing,Symposium on Rendering, and Symposium on Computer Animation.

As in the rest of computer science, conference publications in computer

graphics are generally more significant than journal publications (and

subsequently have lower acceptance rates)[1][2][3].[4]

 

Subfields in computer graphics

 

A broad classification of major subfields in computer graphics might be:

 

Geometry: studies ways to represent and process surfaces

 

Animation: studies with ways to represent and manipulate motion

 

Rendering: studies algorithms to reproduce light transport

 

Imaging: studies image acquisition or image editing

 

Geometry

 

Successive approximations of a surface computed using quadric error

metrics.

 

The subfield of geometry studies the representation of three-dimensional

objects in a discrete digital setting. Because the appearance of an

object depends largely on its exterior, boundary representations are

most commonly used. Two dimensional surfaces are a good representation

for most objects, though they may be non-manifold. Since surfaces are

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