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Senses for Safety.
Driver assistance systems help save lives.
MATLAB Expo 2014
Verkehrszeichenerkennung in Fahrerassistenzsystemen
– MATLAB @ Continental –
http://www.continental-automotive.com/
Chassis & Safety Division
Advanced Driver Assistance Systems
Public
Dr. Alexander Behrens
Continental Corporation Five Strong Divisions
09 July 2014
3
Chassis &
Safety
Vehicle Dynamics
Hydraulic
Brake Systems
Passive Safety &
Sensorics
Advanced Driver
Assistance Systems
(ADAS)
Powertrain
Engine Systems
Transmission
Hybrid Electric
Vehicle
Sensors &
Actuators
Fuel Supply
Interior
Instrumentation &
Driver HMI
Infotainment &
Connectivity
Body & Security
Commercial Vehicles
& Aftermarket
Tires
PLT, Original Equipment
PLT, Repl. Business, EMEA
PLT, Repl. Business, The Americas
PLT, Repl. Business, APAC
Commercial Vehicle Tires
Two Wheel Tires
ContiTech
Air Spring Systems
Benecke-Kaliko
Group
Compounding
Technology
Conveyor Belt
Group
Elastomer Coatings
Fluid Technology
Power Transmission
Group
Vibration Control PLT – Passenger and Light Truck Tires
Public
Dr. Alexander Behrens
ADAS Business Unit Global Footprint
09 July 2014
4
Seguin, USA
SOP 2014
Ingolstadt, GER
Yokohama, JAP
Timisoara, ROM
Lindau, GER
Headquarters
Lead Plant
Lewes, GBR
Engineering
Production
Sales Ottobrunn, GER
Auburn Hills, USA
Nuernberg, GER Regensburg,GER
Sibiu, ROM
Calamba, PH
SOP 2015
SOP 2016
Karben, GER
SOP 2016
Ulm, GER
Bangalore, IND
Public
Dr. Alexander Behrens
ADAS Functions Overview & Motivation
09 July 2014
5
“70% of all serious
accidents could potentially
be avoided by driver
assistance systems”
(BAST Germany)
Increase safety & comfort is our
mission!
Lane Departure Warning Emergency Brake Assist Adaptive Cruise Control Traffic Sign Assist
Blind Spot Detection Intelligent Headlamp
Control Rear Cross Traffic Alert Surround View
Public
Dr. Alexander Behrens 09 July 2014
6
Multi Functional Camera
Lane Recognition Light Sensing Traffic Sign
Recognition Vehicle
Detection
One Camera for
Multiple Functions
Pedestrian
Detection
Public
Dr. Alexander Behrens
Challenges – Sign Set
09 July 2014
8
› Recognized sign types with and without navigation input (with examples)
› Speed limits
› No-passing
› Cancellations
› Electronic
› Directional/ no entry
› Stop signs
Public
Dr. Alexander Behrens
Circular Sign Recognition Algorithm
09 July 2014
9
Video Camera
Grayscale Image
Public
Dr. Alexander Behrens
Circular Sign Recognition Algorithm
09 July 2014
10
Video Camera
Grayscale Image
Edge Detector
Public
Dr. Alexander Behrens
Circular Sign Recognition Algorithm
09 July 2014
11
Video Camera
Grayscale Image
Edge Detector
Hough Transformation
Public
Dr. Alexander Behrens
Circular Sign Recognition Algorithm
09 July 2014
12
Video Camera
Grayscale Image
Edge Detector
Tracker
Hough Transformation
Public
Dr. Alexander Behrens
Circular Sign Recognition Algorithm
09 July 2014
13
Video Camera
Grayscale Image
Edge Detector
Tracker
Classification
Hough Transformation
Public
Dr. Alexander Behrens
Circular Sign Recognition Algorithm
09 July 2014
14
Video Camera
Grayscale Image
Edge Detector
Tracker
Classification
Result:
Hough Transformation
Public
Dr. Alexander Behrens
› MATLAB Tools are developed and used for
› Development / training, analysis, review, evaluation
› Interaction with different databases
› Advantages
› Easy and fast pre-development
› Evaluation and generation of key performance indicators
› GUI and user friendly interfaces
› Example: Classifier Training
› Training of classifiers for Traffic Sign Recognition is data driven
› Automated training
› Handling of large databases
› Evaluation and analysis
MATLAB Tooling Example: Traffic Sign Recognition - Classifier Training
09 July 2014
15
Public
Dr. Alexander Behrens 09 July 2014
16
Labeled Data
“Ground Truth”
Recording /
Algorithm
Output
MATLAB
Toolchain
Traffic Sign
Assist
Algorithm
Camera
Label Inspector
Labeling
Scene Inspector
Public
Dr. Alexander Behrens 09 July 2014
20
Labeled Data
“Ground Truth”
Recording /
Algorithm
Output
MATLAB
Toolchain
Traffic Sign
Recognition /
Classification
Traffic Sign
Assist
Algorithm
Scene Inspector
Camera
Label Inspector Sample Inspector
Labeling Synthetic
Sign Data
Public
Dr. Alexander Behrens
Evaluation
09 July 2014
22
MATLAB
Toolchain
- Image Processing Toolbox
- Signal Processing Toolbox
- Statistics Toolbox
- Curve Fitting Toolbox
- Parallel Computing Toolbox
Public
Dr. Alexander Behrens
› MATLAB is used in daily work for development and evaluation of driver assistance
functions
› Prototypes are designed with MATLAB for predevelopment and proof of concept
› Data management, evaluation, and interactive analysis are supported by MATLAB tools
and GUIs
› Traffic Sign Recognition and other functions make high use of MATLAB tools
› MATLAB and its established features
› reduces our tool development efforts,
› accelerates our simulation cost,
› and allows reliable, repeatable and accurate parameter optimizations
› Engineers having good MATLAB programming skills are highly requested
Summary
09 July 2014
23
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