Advised byProf. Pedro V. Sander

By LEE Ning Hin Lincoln, LOU Yu Hong, WU Kam Kong

Motivation Primary Goal System Overview System Components

◦ Graphics◦ Network◦ User Interface

Problems Encountered Future Developments Q&A

High resolution world◦ High definition technologies◦ Gigapixel images◦ Result = ?

Cheaper sensors◦ Touch-based◦ Motion-based◦ Location-based◦ Result = ?

Multi-display array◦ Multiple monitors to form a single high resolution

display unit◦ Synchronized images

Gigapixel image◦ One billion pixels

Wiimote◦ Creative and user-friendly interface

Workstation 01

Display 01

Server

Bluetooth Adapter

Workstation 02

Display 02

Workstation 12

Display 12

Display Wall

Server

User Interface

Wiimote

Infrared Bar

wiiuse

Socket

Socket

Bluesoleil

Client Programrunning on

the Display WallWorkstations

ServerProgram

OperatingSystem

of the Server

OpenGL

DevIL SDL

Image name Two points coordinate

#image_name#x1#y1#x2#y2#

Version 2.0 WSADATA

Sample size for each test: 1000

OpenGL◦ Displaying the image

 SDL◦  Window Management

 DevIL◦ Image loading

1. SDL window initialize2. DevIL decode jpg image3. OpenGL display texture

Create window Create OpenGL context Handle keyboard event

Load image file Decode image file Pass data to OpenGL texture

Set up environment Create coordinate system Draw a rectangle

Paste texture on it

Split the image file into tiles Draw multiple quads Paste different texture on them

 

Traditional ◦ Key mapping◦ Infrared tracking◦ Distance measuring ◦ Haptic feedback

Reverse traditional◦ No buttons◦ Infrared tracking

(Another approach)

Throughput◦ Lots of data

Accuracy◦ Errors in infrared tracking

Sensitivity

Management of workstations◦ Remote control◦ Classroom management ◦ Wake on LAN◦ Network Boot◦ Shared drive

Dynamic loading of texture◦ Save memory but decrease in performance

Synchronization◦ Computer clock◦ Internet time server

Other User Interface◦ 3D camera◦ Touch-based devices

Other Wiimote usages◦ Two infrared LEDs tracking for zooming in Wiimote ◦ With a mirrored infrared source