Efficient Pedestrian Detection at Nighttime Using a Thermal Camera
The School of Electrical and Electronic Engineering, Yonsei University, Seoul 120-749, Korea
Author to whom correspondence should be addressed.
Received: 19 May 2017 / Revised: 6 August 2017 / Accepted: 7 August 2017 / Published: 10 August 2017
Most of the commercial nighttime pedestrian detection (PD) methods reported previously utilized the histogram of oriented gradient (HOG) or the local binary pattern (LBP) as the feature and the support vector machine (SVM) as the classifier using thermal camera images. In this paper, we propose a new feature called the thermal-position-intensity-histogram of oriented gradient (TPIHOG or T
HOG) and developed a new combination of the T
HOG and the additive kernel SVM (AKSVM) for efficient nighttime pedestrian detection. The proposed T
HOG includes detailed information on gradient location; therefore, it has more distinctive power than the HOG. The AKSVM performs better than the linear SVM in terms of detection performance, while it is much faster than other kernel SVMs. The combined T
HOG-AKSVM showed effective nighttime PD performance with fast computational time. The proposed method was experimentally tested with the KAIST pedestrian dataset and showed better performance compared with other conventional methods.
This is an open access article distributed under the Creative Commons Attribution License
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MDPI and ACS Style
Baek, J.; Hong, S.; Kim, J.; Kim, E. Efficient Pedestrian Detection at Nighttime Using a Thermal Camera. Sensors 2017, 17, 1850.
Baek J, Hong S, Kim J, Kim E. Efficient Pedestrian Detection at Nighttime Using a Thermal Camera. Sensors. 2017; 17(8):1850.
Baek, Jeonghyun; Hong, Sungjun; Kim, Jisu; Kim, Euntai. 2017. "Efficient Pedestrian Detection at Nighttime Using a Thermal Camera." Sensors 17, no. 8: 1850.
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