Heterogeneous Fusion of Camera and mmWave Radar Sensor of Optimizing Convolutional Neural Networks for Parking Meter System

In this article, a novel heterogeneous fusion of convolutional neural networks that combined an RGB camera and an active mmWave radar sensor for the smart parking meter is proposed. In general, the parking fee collector on the street outdoor surroundings by traffic flows, shadows, and reflections ma...

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Main Authors: Chi-Chia Sun, Yong-Ye Lin, Wei-Jia Hong, Gene-Eu Jan
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/8/4159
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author Chi-Chia Sun
Yong-Ye Lin
Wei-Jia Hong
Gene-Eu Jan
author_facet Chi-Chia Sun
Yong-Ye Lin
Wei-Jia Hong
Gene-Eu Jan
author_sort Chi-Chia Sun
collection DOAJ
description In this article, a novel heterogeneous fusion of convolutional neural networks that combined an RGB camera and an active mmWave radar sensor for the smart parking meter is proposed. In general, the parking fee collector on the street outdoor surroundings by traffic flows, shadows, and reflections makes it an exceedingly tough task to identify street parking regions. The proposed heterogeneous fusion convolutional neural networks combine an active radar sensor and image input with specific geometric area, allowing them to detect the parking region against different tough conditions such as rain, fog, dust, snow, glare, and traffic flow. They use convolutional neural networks to acquire output results along with the individual training and fusion of RGB camera and mmWave radar data. To achieve real-time performance, the proposed algorithm has been implemented on a GPU-accelerated embedded platform Jetson Nano with a heterogeneous hardware acceleration methodology. The experimental results exhibit that the accuracy of the heterogeneous fusion method can reach up to 99.33% on average.
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spelling doaj.art-84e5ceb46de94d50b1fedec5fc597dca2023-11-17T21:19:55ZengMDPI AGSensors1424-82202023-04-01238415910.3390/s23084159Heterogeneous Fusion of Camera and mmWave Radar Sensor of Optimizing Convolutional Neural Networks for Parking Meter SystemChi-Chia Sun0Yong-Ye Lin1Wei-Jia Hong2Gene-Eu Jan3Department of Electrical Engineering, National Formosa University, Huwei 632, TaiwanDepartment of Electro-Optical Engineering, National Formosa University, Huwei 632, TaiwanDepartment of Electrical Engineering, National Formosa University, Huwei 632, TaiwanDepartment of Electrical Engineering, National Taipei University, New Taipei City 237, TaiwanIn this article, a novel heterogeneous fusion of convolutional neural networks that combined an RGB camera and an active mmWave radar sensor for the smart parking meter is proposed. In general, the parking fee collector on the street outdoor surroundings by traffic flows, shadows, and reflections makes it an exceedingly tough task to identify street parking regions. The proposed heterogeneous fusion convolutional neural networks combine an active radar sensor and image input with specific geometric area, allowing them to detect the parking region against different tough conditions such as rain, fog, dust, snow, glare, and traffic flow. They use convolutional neural networks to acquire output results along with the individual training and fusion of RGB camera and mmWave radar data. To achieve real-time performance, the proposed algorithm has been implemented on a GPU-accelerated embedded platform Jetson Nano with a heterogeneous hardware acceleration methodology. The experimental results exhibit that the accuracy of the heterogeneous fusion method can reach up to 99.33% on average.https://www.mdpi.com/1424-8220/23/8/4159parking meterembedded computerconvolutional neural networksmmWave radar
spellingShingle Chi-Chia Sun
Yong-Ye Lin
Wei-Jia Hong
Gene-Eu Jan
Heterogeneous Fusion of Camera and mmWave Radar Sensor of Optimizing Convolutional Neural Networks for Parking Meter System
Sensors
parking meter
embedded computer
convolutional neural networks
mmWave radar
title Heterogeneous Fusion of Camera and mmWave Radar Sensor of Optimizing Convolutional Neural Networks for Parking Meter System
title_full Heterogeneous Fusion of Camera and mmWave Radar Sensor of Optimizing Convolutional Neural Networks for Parking Meter System
title_fullStr Heterogeneous Fusion of Camera and mmWave Radar Sensor of Optimizing Convolutional Neural Networks for Parking Meter System
title_full_unstemmed Heterogeneous Fusion of Camera and mmWave Radar Sensor of Optimizing Convolutional Neural Networks for Parking Meter System
title_short Heterogeneous Fusion of Camera and mmWave Radar Sensor of Optimizing Convolutional Neural Networks for Parking Meter System
title_sort heterogeneous fusion of camera and mmwave radar sensor of optimizing convolutional neural networks for parking meter system
topic parking meter
embedded computer
convolutional neural networks
mmWave radar
url https://www.mdpi.com/1424-8220/23/8/4159
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