Inlämning av Examensarbete / Submission of Thesis

Claes Nedfors; Dan Hallengren MEE06:07, pp. 71. TEK/avd. för signalbehandling, 2006.

The work

Författare / Author: Claes Nedfors, Dan Hallengren
Titel / Title: Klassificering av hastighetsskyltar
Översatt titel / Translated title: Classification of speed signs
Abstrakt Abstract:

Many people are involved in severe traffic related accident every year. Many of these
accidents are strongly linked to too high speed. One way to decrease the speed transgressions
and the number of accidents could be to implement a system that help the
driver keeping the current speed limit.
This thesis presents a method for classifying speed signs using computer vision. The
classifier is a part of a system for speed tracking and notifying. This system assists
a driver by notifying him/her of the current speed limit. This is done by computer
vision, i.e. a camera connected to a computer reads the current trac environment and
the frames are processed by the computer. A computer vision system is commonly
composed by a detector and a classifier. The detector scans the frames from the camera
and locates possible speed signs. The possible speed sign locations are passed to the
classifier. The classifiers task is to decide if the possible location contains a speed sign
and if it does contain a speed sign, to proclaim its speed. The classifier in this thesis is
based on cross correlation.
The algorithm is evaluated against a database, which includes images with coordinates
for speed signs marked by hand.
If the weather conditions are not to extreme and if the detector has good accuracy the
classifier will make the right decision in close to 100% of the cases.

Ämnesord / Subject: Signalbehandling - Signal Processing

Nyckelord / Keywords: Image Processing, Signal Processing, Computer Vision

Publication info

Dokument id / Document id:
Program:/ Programme Magisterprogram Telekommunikation och Signalbehandling/Masters progr. Telecom & Signal Proc.
Registreringsdatum / Date of registration: 08/25/2006
Uppsatstyp / Type of thesis: D-Uppsats/Magister/Master


Handledare / Supervisor: Benny Sällberg
Examinator / Examiner: Mikael Nilsson
Organisation / Organisation: Blekinge Institute of Technology
Institution / School: TEK/avd. för signalbehandling
S-372 25 Ronneby
+46 455 38 50 00

Files & Access

Bifogad uppsats fil(er) / Files attached: rapport.pdf (3291 kB, öppnas i nytt fönster)