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

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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

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Goals

Redefine presentations

Ease of transition between slides

Display more information

Minimize computer interactions

Present anywhere on any surface

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Lasers• Bright

• Project on different surfaces

Keystone

•

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Microsoft Kinect

• Point cloud depth information

• Spatial gesture information

• Sound recognition

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Kinect demonstration

Its time for!!! DEMO TIMEEE!!!

Be Amazed at this Demo!

Now say, oohhhh ahhh.

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Design Specifications –Block Diagram

Block Diagram Component Interface

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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

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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

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Design Specifications – Software (cont’d)

KinectStart/End PresentationChange Slides

• Backward , Forward, SplitInvoke menu

• Context menus• Application menus

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Midway Design Review - Team Responsibility

Allen 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

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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

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Midway Design Review (cont’d)

Projected costs• DAC ~ $15.60• Green Laser ~ $32.50• Galvanometer set ~220

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

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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

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MDR - Internal deadlines

• MDR – November 28-30

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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

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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.

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Requirements

Hardware• A laser projector capable of displaying images and text

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