augmented reality effects in jaus subsystem commander teleoperation interfaces gregory garcia center...
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Augmented Reality Effects in JAUS Subsystem Commander Teleoperation Interfaces
Gregory Garcia
Center for Intelligent Machines and RoboticsDept. of Mechanical and Aerospace EngineeringUniversity of Florida
December 2008
Problem areas with AGV teleoperation interfaces:
- Communication - High-overhead - Poorly Designed - Outdated technologies
Center for Intelligent Machines and RoboticsCollege of Engineering
Existing Interface
2
Center for Intelligent Machines and RoboticsCollege of Engineering
Functional Demonstration
3
Center for Intelligent Machines and RoboticsCollege of Engineering
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User Study ConditionsApparatus: • Quiet Room (2 days)• Laptop Computer (15.4 inch 1280x800 display)• Optical Mouse• Experimental and control InterfacesStudy Protocol:• 5 minute tutorial and Q/A (2x) • Interface Evaluation (2x)• QuestionnaireMetrics:Quantitative
• Error Rate • Decision making time
Qualitative• Situational Awareness• Interaction Style• Eye Gaze
• Ease of use• User Confidence
• Strengths/ Weaknesses
• Random testing order
Center for Intelligent Machines and RoboticsCollege of Engineering
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Results and AnalysisHo: OERstandard ≤ OERvideo Ha: OER standard > OERvideo
p-value = 0.27996, t’ = 0.58977, tα = 1.69913• Fail to reject the Null Hypothesis
• 28% probability that pattern is due to chance
One sided T-test for independent samples w/ unequal variancesα = .05
Two sided T-test for independent samples w/ unequal variancesα = .05
H0: DMTstandard – DMTvideo = 0 Ha: DMTstandard – DMTvideo ≠ 0
p-value = 0.2203, t’ = 1.26524, tα/2 = 2.08596• Fail to reject the Null Hypothesis
• 22% probability that patter is due to chance
Center for Intelligent Machines and RoboticsCollege of Engineering
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Results and Analysis (2)
0
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10
15
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Decision Time given Standard In-terface First
No Video Time
With Video Time
Tim
e (
se
co
nd
s)
012345678
Decision Time given Video In-terface First
No Video Time
With Video Time
Tim
e (
se
co
nd
s)
No Video Time With Video Time6.419411765 5.028823529
No Video With Video0
5
10
15
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User Situational Awareness
Very Aware
Somewhat Aware
Other Observations• Unanimously chose Video interface• Highest marks for ease of learning• Increased User Confidence Level• Color scheme received favorably• Rely heavily on video for initial big-
picture, used sensor fusion for details
Center for Intelligent Machines and RoboticsCollege of Engineering
Questions?