Effectiveness of video camera dynamic range expansion for lane mark detection

Author

Yamada, Keiichi ; Nakano, Tomoaki ; Yamamoto, Shin

Author_Institution

Toyota Central Res. & Dev. Labs. Inc., Aichi, Japan

fYear

1997

fDate

9-12 Nov 1997

Firstpage

584

Lastpage

588

Abstract

Insufficiency of dynamic range of conventional video cameras is an important problem in realizing a robust vision system for autonomous vehicles, because road scenes have very wide dynamic range of brightness. To solve the problem, we have developed an experimental visual sensor having an expanded dynamic range, which is approximately 30 times as wide as that of a conventional CCD camera. By applying the developed sensor to lane mark detection, the effectiveness of the dynamic range expansion in comparison with a conventional CCD camera was evaluated. The successful detection rate with the developed sensor was 6% greater than that with the conventional camera on an average in daytime, and the effectiveness of the dynamic range expansion was confirmed

Keywords

mobile robots; road vehicles; robot vision; video cameras; brightness range; lane mark detection; robust vision system; video camera dynamic range expansion; visual sensor; Cameras; Charge coupled devices; Charge-coupled image sensors; Dynamic range; Layout; Machine vision; Mobile robots; Remotely operated vehicles; Road vehicles; Robustness;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Transportation System, 1997. ITSC '97., IEEE Conference on

Conference_Location

Boston, MA

Print_ISBN

0-7803-4269-0

Type

conf

DOI

10.1109/ITSC.1997.660539

Filename

660539