1. CSE 494/598 Intro to Applied Computer Graphics Anshuman Razdan DCST razdan@asu.edu AR's Web Page AR's Web Page http://dcst2.east.asu.edu/~razdan http://dcst2.east.asu.edu/~razdan

2. Anshuman Razdan and Peter Wonka 1 Disclaimer These slides can only be used as study material for the class 494 at ASU The slides cannot be distributed or used for another purpose The slides may contain errors The slides do not contain all the information necessary to succeed in class; additional material from the book must to be studied The slides are based on a lecture from Prof. Purgathofer from the Vienna University of Technology

3. Chapter 1 A survey of computer graphics

4. Anshuman Razdan and Peter Wonka 3 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, …)

5. Anshuman Razdan and Peter Wonka 4 1-1 Graphs and Charts Example: start Excel, insert data, insert chart …

6. Anshuman Razdan and Peter Wonka 5 1-2 Computer Aided Design Design of buildings AutoCAD, ArchiCAD Design of machine parts

7. Anshuman Razdan and Peter Wonka 6 1-3 Virtual Reality Virtual Reality / Augmented Reality / Mixed Reality Surgery Simulation (TU Graz) Geometry Education (TU Graz) Driving Simulation (U of Iowa)

8. Anshuman Razdan and Peter Wonka 7 1-4 Data Visualization Medical Visualization (TU Vienna) Tree of Life Visualization (UBC)

9. Anshuman Razdan and Peter Wonka 8 1-5 Education and Training Some relation to Virtual Environments Driving simulation Flight simulation Military simulation

10. Anshuman Razdan and Peter Wonka 9 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!)

11. Anshuman Razdan and Peter Wonka 10 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, …

12. Anshuman Razdan and Peter Wonka 11 1-7 Entertainment Pixar Movies Digital Effects Industry

13. Anshuman Razdan and Peter Wonka 12 1-8 Image Processing Computer Graphics  generate an image Image Processing  modify an image Large overlap, for example compression of images gif (Graphics Interchange Format, lossless, only 8 bit) png (lossless, but can handle 24bit) jpg (lossy) compression of videos

14. Anshuman Razdan and Peter Wonka 13 Image Processing: Computer Vision Related Fields Computer Vision Pattern Recognition Low-level Vision: detecting edges detecting lines detecting circles High-Level Vision Understanding Images (Videos) e.g. detecting license plates in images

15. Anshuman Razdan and Peter Wonka 14 1-9 Graphical User Interfaces Related Field: HCI Human Computer Interaction How to design a vending machine for subway tickets?