Hands-Free Camera Controller
Jeffrey Gould
Overview
• Introduction
– Background
– Design Criteria
• Components
• Sensor Mapping
• Problems
• Demonstration
• Future Work
Introduction: Background
Design Criteria
• Head Mounted Display
• Self Contained
• Expedient
Components
• Controller
• Servos
• Sensors
– Compass
– Accelerometer
Sensor Mapping
(3300) (3599,0)
127
(2700)
0 255
Sensor Mapping
• Compass Reading • Servo Command
Sensor Mapping
• Compass Reading • Servo Command
• Reading – Reference • Scaled Deviation
2250-1800=450 (450)*255/1800+127=190
Sensor Mapping
• Compass Reading • Servo Command
• Reading – Reference • Scaled Deviation
2250-1800=450 (450)*255/1800+127=190
(1800)
127 (2250)
190
0 255
Problems
• Mapping Problems
• Software Problems
• Hardware Problems
Mapping Problems
• Pass Through North
• Rotate Beyond
Horizon (800)
0,3599 127
64
0 255
Software Problem(s)
• PROBLEM • SOLUTION
Programs Limited to Reduced Complexity of
1kByte Size Mapping Algorithm
Hardware Problem(s)
• PROBLEM • SOLUTION
Sensor Limitation Prototype Operates in
Two Separate Modes
Demonstration
Future Work
• Do Research
• Change Sensor
• Change Microcontroller
• Go Wireless
• Add Functionality
Alternative Control Method
• Used with monitor,
not HUD
• A “Dead-Band” zone
is established
• Camera stays fixed if
head is oriented in
Dead-Band
• Camera pans if head
moves out of Dead-
Band
Conclusion
• Project Has Captured
My Interest
• Has Worthwhile
Robotics Application
• Should Conduct
Research Before
Proceeding