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Feature-Based Speed Limit Sign Detection Using a Graphics Processing Unit

@inproceedings{Glavtchev:2011:FSL,
title="Feature-Based Speed Limit Sign Detection Using a Graphics Processing Unit",
booktitle="IEEE Intelligent Vehicles",
author="Vladimir Glavtchev AND Pinar Muyan-Ozcelik AND Jeffrey M. Ota AND John D. Owens ",
year="2011",
month=jun,
keywords="intelligent vehicles, feature-based, speed limit recognition, GPGPU, GPU, parallel",
organization="IEEE",
location="Baden-Baden, Germany",
eventtime="June 5-9, 2011",
abstract="In this study we test the idea of using a graphics processing unit (GPU) as an embedded co-processor for realtime detection of European Union (EU) speed-limit signs. The input to the system is a set of grayscale videos recorded from a forward-facing camera mounted in a vehicle. We introduce a new technique for implementing the radial symmetry detector (RSD) efficiently using the native rendering capabilities of a GPU. The technique maps the algorithms to the hardware such that the detection of speed-limit sign candidates is significantly accelerated. The system reaches up to 88% detection rate and runs at 33 frames per second on video sequences with VGA (640x480) resolution on an embedded system with an Intel Atom 230 @ 1.67 GHz CPU and a NVIDIA GeForce 9400M GS GPU.",
}
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