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Path Prediction for a Night Vision System
Linköping University, Department of Electrical Engineering, Automatic Control.
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In modern cars, advanced driver assistance systems are used to aid the driver and increase the automobile safety. An example of such a system is the night vision system designed to detect and warn for pedestrians in danger of being hit by the car. To determine if a warning should be given when a pedestrian is detected, the system requires a prediction of the future path of the car for up to four seconds ahead in time.

In this master's thesis, a new path prediction algorithm based on satellite positioning and a digital map database has been developed. The algorithm uses an extended Kalman filter to get an accurate estimate of the current position and heading direction of the car. The estimate is then matched to a position in the map database and the possible future paths of the vehicle are predicted using the road network.

The performance of the path prediction algorithm has been evaluated on recorded night vision sequences corresponding to 15 hours of driving. The results show that map-based path prediction algorithms are superior to dead-reckoning methods for longer time horizons.

It has also been investigated whether vision-based lane detection and tracking can be used to improve the path prediction. A prediction method using lane markings has been implemented and evaluated on recorded sequences. Based on the results, the conclusion is that lane detection can be used to support a path prediction system when lane markings are clearly visible.

Place, publisher, year, edition, pages
2011. , 73 p.
Keyword [en]
Positioning, Vehicle Navigation, GPS, Map Matching, Extended Kalman Filter, Path Prediction, Lane Detection
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-68895ISRN: LiTH-ISY-EX--11/4483--SEOAI: oai:DiVA.org:liu-68895DiVA: diva2:427329
Subject / course
Automatic Control
Presentation
2011-06-13, Glashuset, Linköpings universitet, 10:15
Uppsok
Technology
Supervisors
Examiners
Available from: 2011-07-04 Created: 2011-06-10 Last updated: 2011-07-04Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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