Mr. Yaobin Li Profile

Yaobin Li

at Univ of Electronic Science and Technology of China

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Proceedings Article | 15 November 2017 Paper

Coarse-to-fine deep neural network for fast pedestrian detection

Yaobin Li, Xinmei Yang, Lijun Cao

Proceedings Volume 10605, 106052H (2017) https://doi.org/10.1117/12.2293435

KEYWORDS: Neural networks, Convolutional neural networks

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Pedestrian detection belongs to a category of object detection is a key issue in the field of video surveillance and automatic driving. Although recent object detection methods, such as Fast/Faster RCNN, have achieved excellent performance, it is difficult to meet real-time requirements and limits the application in real scenarios. A coarse-to-fine deep neural network for fast pedestrian detection is proposed in this paper. Two-stage approach is presented to realize fine trade-off between accuracy and speed. In the coarse stage, we train a fast deep convolution neural network to generate most pedestrian candidates at the cost of a number of false positives. The detector can cover the majority of scales, sizes, and occlusions of pedestrians. After that, a classification network is introduced to refine the pedestrian candidates generated from the previous stage. Refining through classification network, most of false detections will be excluded easily and the final pedestrian predictions with bounding box and confidence score are produced. Competitive results have been achieved on INRIA dataset in terms of accuracy, especially the method can achieve real-time detection that is faster than the previous leading methods. The effectiveness of coarse-to-fine approach to detect pedestrians is verified, and the accuracy and stability are also improved.

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