6 July 2022 Fast and effective pedestrian detection based on low-level visual features combination
Tawfik Mohammed Ahmed Qaid, Abdelhamid Loukil, Lahouari Kaddour El Boudadi, Adam A. Q. Mohammed
Author Affiliations +
Abstract

Automatic pedestrian detection is a crucial task for intelligent vehicles as it helps avoid car-to-pedestrian accidents. Recently, several approaches have been proposed to improve detection accuracy, such as the channel-based family, which is based on the aggregation of channel features (e.g., HOG + LUV) to represent the shape of pedestrians. Previous handcrafted-based detectors significantly improved the detection performance by applying different filters to channel features. However, when there are similar-looking background objects, their detection performance suffers due to the lack of texture features. Another drawback of these approaches lies in their high computational cost, limiting their use for real-world applications, especially for resource constrained systems. To mitigate these drawbacks while maintaining a distinguishable detection accuracy, we propose a method that combines a simple but effective texture descriptor based on local binary patterns with HOG + LUV. The concatenated features are used to train a boosted decision trees classifier. To evaluate our approach, we carried out extensive experiments on four well-known datasets, including INRIA, ETH, KITTI, and Caltech. Experimental results show that the proposed method achieves a competitive performance to the channel-based detectors with significantly lower computational cost; it runs at 91.64 and 6.08 times faster than the closest competitors detectors on the INRIA and Caltech datasets, respectively. Furthermore, it outperforms these methods when evaluating under the corrected annotations of the Caltech dataset.

© 2022 SPIE and IS&T 1017-9909/2022/$28.00 © 2022 SPIE and IS&T
Tawfik Mohammed Ahmed Qaid, Abdelhamid Loukil, Lahouari Kaddour El Boudadi, and Adam A. Q. Mohammed "Fast and effective pedestrian detection based on low-level visual features combination," Journal of Electronic Imaging 31(4), 043004 (6 July 2022). https://doi.org/10.1117/1.JEI.31.4.043004
Received: 12 December 2021; Accepted: 15 June 2022; Published: 6 July 2022
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KEYWORDS
Sensors

Visualization

RGB color model

Binary data

Computing systems

Feature extraction

Facial recognition systems

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