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Tri-Rig Facial Capture
Nick Johns, Ashley Kaufman, Chris Suever
Problem Statement
The FBI Biometric Collection currently uses a system that collects facial profile pictures of participants from different angles for facial recognition research purposes. The participant must rotate 5 times from -90 degrees to +90 degrees in respect to a camera with their eyes open and closed for a total of 12 pictures.
Our system was designed for TwinsDay (a weekend convention held yearly to collect biometric data specifically for twins) to facilitate the ease and speed of the collection process by using three separate cameras. The participant rotates twice instead of 5 times. The process takes about half the time as the original system, and utilizes a user friendly GUI.
Goals and Objectives
Connect host computer to three (3) Raspberry Pis using SSH through network switch.
Retrieve Random ID Number
Implement Live-View
Capture Facial Images
Re-take Images
Settings
Save
System Architecture
Level 0 – Overall Architecture
Overall Architecture
Module Overall Architecture
Inputs USB, Ethernet Cable, HDMI
Micro USB Power Port: 700 mA, 3.5 W, 5V DC
Outputs Mini HD Display Monitor, HD Display Monitor
Functionality Acquire images from Raspberry Pi through commands sent from host computer to the
network switch.
Level 1 Architecture
Raspberry Pi
Module Raspberry Pi
Inputs Canon 5D EOS Mark III Camera
Power: > 250 mA
Outputs Ethernet Cable
Functionality Serves as the connection between the cameras and GUI. Allows
for commands to be sent from GUI to camera
to take and save pictures.
Technology Highlights and Innovative Ideas
Biometrics is one of the fastest growing technologies in today’s world.
Canon Mark III Cameras, Raspberry Pis, HD Monitors , Network Switch – All technologically advanced hardware
Developed for FBI Facial Recognition Research purposes
System Details
•Context Diagram
System Details cont.
•Sequence Diagram
User Interface
User Interface cont.
•Connect
•Enter ID
•System GUI
Actual Accomplishments
We were able to incorporate all of our original goals into our system. This includes: SSH connection, ID retrieval, capture image, re-take images, settings, save, and live-view.
Live-view is faulty, but we still added it as a part of our project so it can be built upon in the future.
System Demo
Future Development
As previously stated, live-view can be built upon to ensure 100% accuracy with the system.
A unified tri-rig could be built that holds all three cameras on the same device to allow for a cleaner looking system. It would also allow for the cameras to be at equal height without having to measure them on separate tri-pods.
Business Potential
Because this system was built for research purposes, we haven’t looked into any business potential at this time.
Although the FBI owns the equipment used in this system’s design, we could redesign a system with new hardware using the software we developed if we ever decide to take our project further.
Questions?