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Journal Article Human Detection Based on Time-Varying Signature on Range-Doppler Diagram Using Deep Neural Networks
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Authors
Youngwook Kim, Ibrahim Alnujaim, Sungjin You, Byung Jang Jeong
Issue Date
2021-03
Citation
IEEE Geoscience and Remote Sensing Letters, v.18, no.3, pp.426-430
ISSN
1545-598X
Publisher
IEEE
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1109/LGRS.2020.2980320
Abstract
We propose the detection of humans using millimeter-wave FMCW radar based on time-varying signatures of range-Doppler diagrams using deep recurrent neural networks (DRNNs). Demand for human detection is increasing for security, surveillance, and search and rescue purposes, recently, with a particular focus on urban areas filled with clutter and moving targets. We suggest the classification of targets based on their signatures in range-Doppler plots with time because the signatures can be consecutively observed. We measure five target types: humans, cars, cyclists, dogs, and road clutter using millimeter-wave FMCW radar that transmits fast chirps at 77 GHz. To maximize the classification accuracy using the time-varying range-Doppler signatures of the targets, we investigate and compare the performance of 2-D-deep convolutional neural networks (DCNN), 3-D-DCNN, and DRNN along with 2-D-DCNN. The DRNN plus 2-D-DCNN showed the best performance, and the classification accuracy yields 99%, with the human classification rate of 100%.
KSP Keywords
77 GHz, Best performance, Classification rate, Convolution neural network(CNN), Deep Recurrent Neural Networks, Deep convolutional neural networks, Deep neural network(DNN), FMCW Radar, Human Detection, Human classification, Moving Target