Thesis etd-06282016-194213 |
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Thesis type
Tesi di laurea magistrale
Author
BERTOLUCCI, MATTEO
URN
etd-06282016-194213
Thesis title
Probabilistic Data Association Between Sparse Polygonal Grid Maps And Dynamic Object Representation
Department
INGEGNERIA DELL'INFORMAZIONE
Course of study
INGEGNERIA ROBOTICA E DELL'AUTOMAZIONE
Supervisors
relatore Prof. Caiti, Andrea
controrelatore Prof. Pratelli, Maurizio
correlatore Prof. Pollini, Lorenzo
tutor Loehlein, Otto
tutor Duraisamy, Bharanidhar
controrelatore Prof. Pratelli, Maurizio
correlatore Prof. Pollini, Lorenzo
tutor Loehlein, Otto
tutor Duraisamy, Bharanidhar
Keywords
- autonomous driving
- data association
- dynamic targets
- Kalman filter
- multi hypothesis tracking
- multi target tracking
- polar grid map
- sensor fusion
- slow moving vehicles
- static targets
Graduation session start date
21/07/2016
Availability
Withheld
Release date
21/07/2086
Summary
An important requirement for autonomous driving, is to detect correctly static targets and dynamic targets under various state of motion.
The opportunity of detecting that depends upon the availability and reliability of different sensor data processed by the sensor fusion module. This thesis uses data from laser, radar and stereo-camera with built-in tracking modules and the objective is to make the resultant of two different sensor fusion modules, sharing the same sensor data, to be consistent accordingly to their operational requirements. One sensor fusion module deals with dynamic targets providing an L-shape representation, while the other module is built to represent only static targets by means of contour polylines. Due to uncertainty in detecting static targets, a clear differentiation between standing objects and vehicles moving at slow speed is not possible for the second module. Slow moving objects can then be considered as standing objects and wrongly represented by the perception system. The aim of this thesis is then to provide a better representation of vehicles moving at slow speed. This is done, at first, adapting the contour representation for moving objects. Then, data association techniques between the two modules are investigated and a novel approach based on multi-hypothesis tracking is presented. The results are evaluated using simulations and validated with real world data and ground truth.
The opportunity of detecting that depends upon the availability and reliability of different sensor data processed by the sensor fusion module. This thesis uses data from laser, radar and stereo-camera with built-in tracking modules and the objective is to make the resultant of two different sensor fusion modules, sharing the same sensor data, to be consistent accordingly to their operational requirements. One sensor fusion module deals with dynamic targets providing an L-shape representation, while the other module is built to represent only static targets by means of contour polylines. Due to uncertainty in detecting static targets, a clear differentiation between standing objects and vehicles moving at slow speed is not possible for the second module. Slow moving objects can then be considered as standing objects and wrongly represented by the perception system. The aim of this thesis is then to provide a better representation of vehicles moving at slow speed. This is done, at first, adapting the contour representation for moving objects. Then, data association techniques between the two modules are investigated and a novel approach based on multi-hypothesis tracking is presented. The results are evaluated using simulations and validated with real world data and ground truth.
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