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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Gomez, A.E. Alencar, F.A.R. Prado, P.V. Osorio, F.S. Wolf, D.F. |
| Copyright Year | 2014 |
| Description | Author affiliation: Mobile Robot. Lab., Univ. of Sao Paulo (USP), Sao Carlos, Brazil (Gomez, A.E.; Alencar, F.A.R.; Prado, P.V.; Osorio, F.S.; Wolf, D.F.) |
| Abstract | The detection of a traffic light on the road is important for the safety of persons who occupy a vehicle, in a normal vehicles or an autonomous land vehicle. In normal vehicle, a system that helps a driver to perceive the details of traffic signals, necessary to drive, could be critical in a delicate driving manoeuvre (i.e crossing an intersection of roads). Furthermore, traffic lights detection by an autonomous vehicle is a special case of perception, because it is important for the control that the autonomous vehicle must take. Multiples authors have used image processing as a base for achieving traffic light detection. However, the image processing presents a problem regarding conditions for capturing scenes, and therefore, the traffic light detection is affected. For this reason, this paper proposes a method that links the image processing with an estimation state routine formed by Hidden Markov Models (HMM). This method helps to determine the current state of the traffic light detected, based on the obtained states by image processing, aiming to obtain the best performance in the determination of the traffic light states. With the proposed method in this paper, we obtained 90.55% of accuracy in the detection of the traffic light state, versus a 78.54% obtained using solely image processing. The recognition of traffic lights using image processing still has a large dependence on the capture conditions of each frame from the video camera. In this context, the addition of a pre-processing stage before image processing could contribute to improve this aspect, and could provide a better results in determining the traffic light state. |
| Sponsorship | IEEE Intell. Transp. Syst. Soc. |
| Starting Page | 750 |
| Ending Page | 755 |
| File Size | 2610523 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781479936380 |
| DOI | 10.1109/IVS.2014.6856486 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-06-08 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Image color analysis Vehicles Hidden Markov models Roads Cameras Viterbi algorithm |
| Content Type | Text |
| Resource Type | Article |
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