SDP 12

Project “PRASER”Senior Design Project 2012

Team Mosaic

Advisor: Professor Lixin GaoMembers: Allen Chew, Charles Essien, Brian Giang, Simon Ma

Evaluators: Professor Frasier, Professor Gong

2SDP 12

Agenda Introduction Praser – The laser presentation experience

• Goals• Background comparison

Design Specifications• System Block Diagram• Laser System• Software Systems

MDR • Distribution of tasks / Team responsibility• Proposed Prototype concept• Internal deadlines

3SDP 12

Goals Redefine presentations

Ease of transition between slides

Display more information Minimize computer

interactions Present anywhere on any

surface

4SDP 12

Lasers• Bright

• Project on different surfaces

Keystone

•

5SDP 12

Microsoft Kinect

• Point cloud depth information

• Spatial gesture information

• Sound recognition

6SDP 12

Kinect demonstration Its time for!!! DEMO TIMEEE!!!

Be Amazed at this Demo!

Now say, oohhhh ahhh.

7SDP 12

Design Specifications –Block DiagramBlock Diagram Component Interface

8SDP 12

Design Specifications –Laser System Four major components: Galvo,

DAC, Laser Pointer, Power Supply Laser - create each pixel of the

projection Galvanometer - reflect the laser

on x & y axis Digital to Analog Converter -

communication between the computer and galvo

Power Supply – The power supply will power the laser and galvanometer

9SDP 12

Design Specifications – Software Interface between computer

and Kinect

Implement Kinect SDK Motion capture and gesture recognition

Primary coding language: C++

Head avoidance and Canvas Calibration

10SDP 12

Design Specifications – Software (cont’d)KinectStart/End PresentationChange Slides

• Backward , Forward, SplitInvoke menu

• Context menus• Application menus

11SDP 12

Midway Design Review - Team ResponsibilityAllen Chew (CSE) – Laser simulation coordinator, PowerPoint control, rendering

Charles Essien (CSE) – Gesture recognition, PowerPoint control

Brian Giang (EE) – Laser projection coordinator, team manager

Simon Ma (CSE) – Laser projection hardware, rendering

12SDP 12

Midway Design Review Initial design and prototype

A working laser system that will project onto any surface

Computer interfacing with the Kinects

Controlling the laser with a computer input to draw basic shapes

13SDP 12

Midway Design Review (cont’d)Projected costs• DAC ~ $15.60• Green Laser ~ $32.50• Galvanometer set ~220

• Total Costs: $275 (with tax & shipping)

14SDP 12

MDR - Internal deadlines

• October 21, 2011• Laser simulation • Kinect SDK

• October 28, 2011 • Gestural interface

• November 4, 2011• Complete laser system• Power point control

• November 17, 2011• Display basic shapes

• MDR – November 28-30

15SDP 12

MDR - Internal deadlines

• MDR – November 28-30

16SDP 12

Design Specifications -Hardware Kinect Specification

• 30Hz 8-bit VGA resolution (640 × 480 pixels)• Usable distance 3.9 ft – 11 ft• Angular FOV 57° horizontally and 43° vertically• motorized tilting up to 27°• minimum viewing horizontal distance of 34 in• minimum viewing vertical 63 cm• microphone array features four microphone capsules

17SDP 12

Applications Useful Widgets and Tools

• Graph • Ruler• Clock• Timer

Android Application• Draw or Type on top of presentation in real time

Music• Collaborative creative environments• Laser Keyboard/Harp

Avatar Presentation• Display pretty avatars for presentations.

18SDP 12

Requirements

Hardware• A laser projector capable of displaying images and text

Software• Gestural recognition from the Kinect sensor• Avoidance system• Interactive menu system