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ELECTRICAL & COMPUTER
ENGINEERING
Colorado State University
Spatial Frequency
Modulation for Imaging
Nick Galvan
Tyler Green
Outline
Objective
How SpatIal Frequency modulation for Imaging (SPIFI) Functions
Influence
Our Design
Current Status
Deo-Nano Programming
Budget
Future Status
Applications
Questions and Comments
Objective
To develop real time 3 dimensional
imaging with SPIFI
To collaborate with Colorado School of
Mines on 3 dimensional aspect
To solve engineering problems of
developing new modulation methods for
imaging by developing software to drive
an LED matrix
Project Influence
Developed by Greg Futia, David Winters, and
Randy Bartels
Input Beam
Cylindrical Lens
Modulation Plane
Imaging Objects
Object
Collection Optics
Detector
Current Status
Focusing on noise minimization
Development of multiple harmonic detection
Optimizing drive speed based off of duty
cycle
De0-Nano Programming
FPGA Programming
Verilog
Pin Assignments
JTAG Server
Processing
JTAG Port Connection
Screen Capture
Individual Columns
Modulus PWM Function
Development
Verilog Schematic
Development
CLK
PWM Function Development
BUS Color
Assignments
Budget Component Quantity Individual Cost Total Cost
32X32 LED Matrix Panel 5 $111.95 $559.75
Microcontroller 2 $58.95 $117.90
FPGA De0-Nano 2 $59.00 $118.00
Photodiode 1 $112.00 $112.00
Female Jumper Wires 24 $14.00 $14.00
Sound Card ASUS Xonar DX
7.1
1 $79.99 $79.99
Fresnel Lenses 5x5 inch 5 $49.50 $247.50
Overall Total = $1289.14
Future Status
2 & 3-D image mapping
Development of a photodiode
Development of Fourier image analysis
program for multiple harmonics
Demonstrate project in spring to local
schools to promote sciences
Applications
Optical Coherence
Tomography
Depth Penetration
Imaging
Tomographic imaging
Material Sciences
Stress Fracture Visualization
Semiconductor Inspection
Real Time Imaging
Cardiovascular flowmetry