Transcript RCD Laser System - Purdue College of Engineering

Team 8
Real-Time Capture Display (RCD) Laser System
Presented by Danny Barjum
Team Members: Corey Lane, Ryan Scott & Danny Barjum
Project and PSSCs
 An ability to locate a laser pointer’s coordinates inside
a given boundary using a camera.
 An ability to create an image based on the laser
position and movement.
 An ability to output the display image to a monitor or
projector, likely using VGA.
 An ability to manipulate the “paint brush” to produce
different colors, and/or brush shapes.
 An ability to clear the image using a gesture or button
“clicked” via laser.
System Requirements
 Microcontroller
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High speed clock for image processing and analysis
128 MB of memory (running embedded OS)
VGA/DVI Output
USB or I2c input
Low power consumption
 Camera
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At least 20 fps
Low operating voltage < 5V
B/W is preferable
I2c or USB format is preferable
Design Constraints (µC options)
 Intel Atom Board
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High processing power (100’s of MHz)
VGA/DVI interface included
USB interface included
Free to get our hands on it.
Low power consumption
 PCM-9371Z-J0A1E, from Advantech
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High processing power (400 MHz)
I2c interface
Ultra low voltage Celeron
Up to 512 RAM
VGA interface
Price: $360
Design Constraints (Camera Options)
 Wiimote
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Fast fps
Provides object tracking
Need to remove IR filter
1024 x 768 Resolution
Monochrome
 Webcam (Generic)
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15 - 30 fps
Resolution can vary
Price: $30 - $120
USB interface
 CMOS Camera
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30 – 60 fps
Data format can vary
Price: $15- $50 Free samples could potentially be acquired
Physical Constraints
 Distance of camera from screen.
 Camera has to be perpendicular to the screen.
 Laser must be brighter than anything else on the
screen.
Questions?