Color image segmentation in HSI space for automotive applications |
| |
Authors: | Calin Rotaru Thorsten Graf Jianwei Zhang |
| |
Affiliation: | 1. Group Research Electronics, Volkswagen AG, 38436, Wolfsburg, Germany 2. Department of Computer Science, University of Hamburg, Vogt-K?lln-Stra?e 30, 22527, Hamburg, Germany
|
| |
Abstract: | This article presents a method for classifying color points for automotive applications in the Hue Saturation Intensity (HSI)
Space based on the distances between their projections onto the SI plane. Firstly the HSI Space is analyzed in detail. Secondly
the projection of image points from a typical automotive scene onto the SI plane is shown. The minimal classes relevant for
driver assistance applications are derived. The requirements for the classification of the points into those classes are obtained.
Several weighting functions are proposed and a fast form of an euclidean metric is investigated in detail. In order to improve
the sensitivity of the weighting function, dynamic coefficients are introduced. It is shown how to compute them automatically
in order to get optimal results for the classification. Finally some results of applying the metric to the sample images are
shown and the conclusions are drawn.
Calin Rotaru
is a PhD candidate at the Department of Computer Science, University of Hamburg, Germany. His PhD work focuses on the topic
color machine vision for driver assistance systems and is supported by Volkswagen AG, Group Research Electronics. He graduated
(2002) with the topic “Stereo Camera Based Object Recognition” for Driver Assistance Systems from the Faculty of Automation
and Computer Science of the Technical University of Cluj-Napoca, Romania. His research interests include color machine vision,
smart vision systems, multisensorial data fusion and vision in driver assistance systems.
Thorsten Graf
received the diploma (M.Sc.) degree in computer science and the Ph.D. degree (his thesis was on “Flexible Object Recognition
Based on Invariant Theory and Agent Technology”) from the University of Bielefeld, Bielefeld, Germany, in 1997 and 2000, respectively.
In 1997 he became a Member of the “Task Oriented Communication” graduate program, University of Bielefeld, funded by the German
research foundation DFG. In June 2001 he joined Volkswagen Group Research, Wolfsburg, Germany. Since then, he has worked on
different projects in the area of driver assistance systems as a Researcher and Project Leader. He is the author or coauthor
of more than 40 publications and owns several patents. His research interests include image processing and analysis dedicated
to advanced comfort/safety automotive applications.
Dr. Jianwei Zhang
is full professor and director of the Institute of Technical Aspects of Multimodal Systems, Department of Computer Science,
University of Hamburg, Germany. He is one of the Chair Professors “Human-Computer Interaction” of the Department of Computer
Science of Tsinghua University. He received his Bachelor (1986) and Master degree (1989) from the Department of Computer Science
of Tsinghua University, and his PhD (1994) from the Department of Computer Science, University of Karlsruhe, Germany. His
research interests include multimodal information processing, robot learning, service robots, smart vision systems and Embodied
Intelligence. In these areas he has published over 120 journal and conference papers, six book chapters and two research monographs.
He leads numerous basic research and application projects, including the EU basic research programs and the Collaborative
Research Centre supported by the German Research Council. Dr. Zhang has received multiple awards including the IEEE ROMAN
Best Paper 2002. |
| |
Keywords: | Color image processing HSI space Image segmentation Automotive applications Driver assistance |
本文献已被 SpringerLink 等数据库收录! |
|