The Tangible Car Rapid Intuitive Traffic Scenario Generation in a - - PowerPoint PPT Presentation

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Fachgebiet Chair for Computer Aided Medical Procedures & Augmented Reality | campar.in.tum.de Augmented Reality The Tangible Car Rapid Intuitive Traffic Scenario Generation in a Hybrid Table-top and Virtual Environment Marcus

SLIDE 1

Chair for Computer Aided Medical Procedures & Augmented Reality | campar.in.tum.de

13 November 2007

Department of Informatics | Technische Universität München

Fachgebiet Augmented Reality

The Tangible Car – Rapid Intuitive Traffic Scenario Generation in a Hybrid Table-top and Virtual Environment

Marcus Tönnis

toennis@in.tum.de

SLIDE 2

CAMP-AR | Department of Informatics | Technische Universität München | 13 November 2007 2 Chair for Computer Aided Medical Procedures & Augmented Reality | campar.in.tum.de Fachgebiet Augmented Reality

Wrong Assistance System Behavior - 1

Ever driven a car with cruise control?
Did you take the foot off the gas pedal?
Did a slower car then pull on your lane?
You startled?
You hectically moved you foot from somewhere to the

brakes?

SLIDE 3

CAMP-AR | Department of Informatics | Technische Universität München | 13 November 2007 3 Chair for Computer Aided Medical Procedures & Augmented Reality | campar.in.tum.de Fachgebiet Augmented Reality

Wrong Assistance System Behavior - 2

Ever driven a car with Adaptive Cruise Control (ACC)?
Did you take the foot off the gas pedal?
Did a slower car then pull on your lane?
Did the ACC turn off instead of braking?
You startled?
You hectically moved your foot from somewhere to the brakes?
What happened?

You were taken out of the loop The assistance system showed a different behavior than the human driver

SLIDE 4

CAMP-AR | Department of Informatics | Technische Universität München | 13 November 2007 4 Chair for Computer Aided Medical Procedures & Augmented Reality | campar.in.tum.de Fachgebiet Augmented Reality

Traffic Scenario Development

The delta between a assistance system‘s behavior and human

behavior must be minimized

Early testing of behavior in VE
Problem: How to get realistic traffic scenarios?
My Approach:

Tangible car on table-top

SLIDE 5

CAMP-AR | Department of Informatics | Technische Universität München | 13 November 2007 5 Chair for Computer Aided Medical Procedures & Augmented Reality | campar.in.tum.de Fachgebiet Augmented Reality

Overview

Opportunities for Traffic Scenarios Development
Concept: A Table-Top Tangible Car
System Setup
Issues of Development Workflow
Conclusion and Future Work

SLIDE 6

CAMP-AR | Department of Informatics | Technische Universität München | 13 November 2007 6 Chair for Computer Aided Medical Procedures & Augmented Reality | campar.in.tum.de Fachgebiet Augmented Reality

Opportunities for Traffic Scenarios Development

Through real cars: With several cars

Not reproducible Dangerous for participants Subjective factors are difficult to vary

Through Sensor data in VEs

Complex analysis of sensor data

Multiple Reflections per Car Reflecting Guardrail

SLIDE 7

CAMP-AR | Department of Informatics | Technische Universität München | 13 November 2007 7 Chair for Computer Aided Medical Procedures & Augmented Reality | campar.in.tum.de Fachgebiet Augmented Reality

Opportunities for Traffic Scenarios Development

Through Simulation: Programmed control of foreign cars

Requires skills in programming Variability of numerous factors

Traffic simulation tools

Complex handling Variability of numerous factors

Discrepancy to reality

Evaluation only against a priori algorithms Exact trajectories - no human noise No atypical driving behavior

SLIDE 8

CAMP-AR | Department of Informatics | Technische Universität München | 13 November 2007 8 Chair for Computer Aided Medical Procedures & Augmented Reality | campar.in.tum.de Fachgebiet Augmented Reality

Concept: A Table-Top Tangible Car

Test subject driven traffic scenario development
Tangible car

Implicit metaphor: Moving (forward) Secondary metaphor: Startling reflexes Collaborative discussion

SLIDE 9

CAMP-AR | Department of Informatics | Technische Universität München | 13 November 2007 9 Chair for Computer Aided Medical Procedures & Augmented Reality | campar.in.tum.de Fachgebiet Augmented Reality

System Setup

SLIDE 10

CAMP-AR | Department of Informatics | Technische Universität München | 13 November 2007 10 Chair for Computer Aided Medical Procedures & Augmented Reality | campar.in.tum.de Fachgebiet Augmented Reality

System Setup

SLIDE 11

CAMP-AR | Department of Informatics | Technische Universität München | 13 November 2007 11 Chair for Computer Aided Medical Procedures & Augmented Reality | campar.in.tum.de Fachgebiet Augmented Reality

Issues of Development Workflow

Non-disrupted independent scenario development procedure:

User / test subject can bring in own 3D models User / test subject registers 3D model to tangible car

Controlling the tangible car
Limited table-top

interaction space

Iterative recording
f car trajectories

SLIDE 12

CAMP-AR | Department of Informatics | Technische Universität München | 13 November 2007 12 Chair for Computer Aided Medical Procedures & Augmented Reality | campar.in.tum.de Fachgebiet Augmented Reality

Object Calibration

Scaling with graphical slider: 1.6 times the size
Alignment

SLIDE 13

CAMP-AR | Department of Informatics | Technische Universität München | 13 November 2007 13 Chair for Computer Aided Medical Procedures & Augmented Reality | campar.in.tum.de Fachgebiet Augmented Reality

Limited table-top interaction space

Base speed applied to viewpoint and car

Please don‘t mind the jitter – rendering now is synchronized – but table was under reconstruction

SLIDE 14

CAMP-AR | Department of Informatics | Technische Universität München | 13 November 2007 14 Chair for Computer Aided Medical Procedures & Augmented Reality | campar.in.tum.de Fachgebiet Augmented Reality

Iterative recording of car trajectories

Please don‘t mind the jitter – rendering now is synchronized – but table was under reconstruction

SLIDE 15

CAMP-AR | Department of Informatics | Technische Universität München | 13 November 2007 15 Chair for Computer Aided Medical Procedures & Augmented Reality | campar.in.tum.de Fachgebiet Augmented Reality

Experiencing Traffic Scenarios

Please don‘t mind the jitter – rendering now is synchronized – but table was under reconstruction

SLIDE 16

CAMP-AR | Department of Informatics | Technische Universität München | 13 November 2007 16 Chair for Computer Aided Medical Procedures & Augmented Reality | campar.in.tum.de Fachgebiet Augmented Reality

Conclusion

Rapid scenario development

Trained people Highway scenario of one minute duration including five cars Excluding object calibration About 8 minutes

Future Work

Driving dynamics model Additional visual stimuli (blinker signal) Conduct full user study

SLIDE 17

Chair for Computer Aided Medical Procedures & Augmented Reality | campar.in.tum.de

13 November 2007

Department of Informatics | Technische Universität München

Fachgebiet Augmented Reality

The Tangible Car – Rapid Intuitive Traffic Scenario Generation in a Hybrid Table-top and Virtual Environment

Marcus Tönnis

toennis@in.tum.de