CSE 494/598

Intro to Applied Computer Graphics

Anshuman RazdanDCST

razdan@asu.eduAR's Web Page

http://dcst2.east.asu.edu/~razdan

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Disclaimer

These slides can only be used as study material for the class 494 at ASUThe slides cannot be distributed or used for another purposeThe slides may contain errorsThe slides do not contain all the information necessary to succeed in class; additional material from the book must to be studiedThe slides are based on a lecture from Prof. Purgathofer from the Vienna University of Technology

Chapter 1

A survey of computer graphics

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Objectives

Understand many different application areas for computer graphics

Understand the term “computer graphics” as used by CST 494

What is computer graphics?

What is a related field? (image processing, computer vision, pattern recognition, image processing, …)

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1-1 Graphs and Charts

Example:start Excel, insert data, insert chart …

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1-2 Computer Aided Design

Design of buildingsAutoCAD, ArchiCAD

Design of machine parts

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1-3 Virtual Reality

Virtual Reality / Augmented Reality / Mixed Reality

Surgery Simulation (TU Graz)

Geometry Education (TU Graz)

Driving Simulation (U of Iowa)

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1-4 Data Visualization

Medical Visualization (TU Vienna)

Tree of Life Visualization (UBC)

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1-5 Education and Training

Some relation to Virtual Environments

Driving simulation

Flight simulation

Military simulation

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1-6 Computer Art

NPR = non-photorealistic rendering (Princeton)

Carlo Sequin (Professor at Berkeley)compute interesting surfaces

create them in the real world (3D printer, bronze, snow!)

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Computer Art

Computer Graphics is often used in different contexts:

Art

Computer science

Art: Given great software (Maya, softimage), how can you design and animate humans?

use software, make nice looking models, …

Computer Science: Given a model of a human being, can we compute physical animation to achieve plausible movements?

solve differential equations, linear algebra, …

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1-7 Entertainment

Pixar Movies

Digital Effects Industry

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1-8 Image Processing

Computer Graphics generate an image

Image Processing modify an image

Large overlap, for examplecompression of images

gif (Graphics Interchange Format, lossless, only 8 bit)

png (lossless, but can handle 24bit)

jpg (lossy)

compression of videos

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Image Processing: Computer Vision

Related FieldsComputer Vision

Pattern Recognition

Low-level Vision:detecting edges

detecting lines

detecting circles

High-Level VisionUnderstanding Images (Videos)

e.g. detecting license plates in images

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1-9 Graphical User Interfaces

Related Field: HCIHuman Computer Interaction

How to design a vending machine for subway tickets?