Scale-Invariant Localization of Electric Vehicle Charging Port via Semi-Global Matching of Binocular Images

Automatic charging for electric vehicles has broad development prospects for meeting the personalized service experience of users while overcoming the inherent safety hazards. An identification and positioning approach suitable for engineering applications is the key to promoting automatic charging....

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Main Authors: Taoyong Li, Chunlei Xia, Ming Yu, Panpan Tang, Wei Wei, Dongmei Zhang
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/10/5247
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author Taoyong Li
Chunlei Xia
Ming Yu
Panpan Tang
Wei Wei
Dongmei Zhang
author_facet Taoyong Li
Chunlei Xia
Ming Yu
Panpan Tang
Wei Wei
Dongmei Zhang
author_sort Taoyong Li
collection DOAJ
description Automatic charging for electric vehicles has broad development prospects for meeting the personalized service experience of users while overcoming the inherent safety hazards. An identification and positioning approach suitable for engineering applications is the key to promoting automatic charging. In this paper, a low-cost, high-precision method to identify and position charging ports based on SIFT and SGBM is proposed. The feature extraction approach based on SIFT is adopted to produce the difference of Gaussian (DOG) for scale space construction, and the feature matching algorithm with nearest-neighbor search, which is a kind of machine learning, is utilized to yield the map set of matching points. In addition, the disparity calculation is conducted with a semi-global matching algorithm to obtain high-precision positioning results for the charging port. In order to verify the feasibility of the method, a complete identification and positioning experiment of charging port was carried out based on OpenCV and MATLAB.
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spelling doaj.art-fa989804026a45c1bb5938e5b2c01eb22023-11-23T09:59:51ZengMDPI AGApplied Sciences2076-34172022-05-011210524710.3390/app12105247Scale-Invariant Localization of Electric Vehicle Charging Port via Semi-Global Matching of Binocular ImagesTaoyong Li0Chunlei Xia1Ming Yu2Panpan Tang3Wei Wei4Dongmei Zhang5Beijing Engineering Technology Research Center of Electric Vehicle Charging/Battery Swap, Beijing 100194, ChinaBeijing Yupont Electric Power Technology Co., Ltd., Beijing 100029, ChinaSchool of Engineering, Beijing Forestry University, Beijing 100083, ChinaBeijing Engineering Technology Research Center of Electric Vehicle Charging/Battery Swap, Beijing 100194, ChinaBeijing Yupont Electric Power Technology Co., Ltd., Beijing 100029, ChinaBeijing Engineering Technology Research Center of Electric Vehicle Charging/Battery Swap, Beijing 100194, ChinaAutomatic charging for electric vehicles has broad development prospects for meeting the personalized service experience of users while overcoming the inherent safety hazards. An identification and positioning approach suitable for engineering applications is the key to promoting automatic charging. In this paper, a low-cost, high-precision method to identify and position charging ports based on SIFT and SGBM is proposed. The feature extraction approach based on SIFT is adopted to produce the difference of Gaussian (DOG) for scale space construction, and the feature matching algorithm with nearest-neighbor search, which is a kind of machine learning, is utilized to yield the map set of matching points. In addition, the disparity calculation is conducted with a semi-global matching algorithm to obtain high-precision positioning results for the charging port. In order to verify the feasibility of the method, a complete identification and positioning experiment of charging port was carried out based on OpenCV and MATLAB.https://www.mdpi.com/2076-3417/12/10/5247identification and location of charging portSIFT feature extractionnearest neighbor search feature matchingsemi-global matching methoddisparity calculation
spellingShingle Taoyong Li
Chunlei Xia
Ming Yu
Panpan Tang
Wei Wei
Dongmei Zhang
Scale-Invariant Localization of Electric Vehicle Charging Port via Semi-Global Matching of Binocular Images
Applied Sciences
identification and location of charging port
SIFT feature extraction
nearest neighbor search feature matching
semi-global matching method
disparity calculation
title Scale-Invariant Localization of Electric Vehicle Charging Port via Semi-Global Matching of Binocular Images
title_full Scale-Invariant Localization of Electric Vehicle Charging Port via Semi-Global Matching of Binocular Images
title_fullStr Scale-Invariant Localization of Electric Vehicle Charging Port via Semi-Global Matching of Binocular Images
title_full_unstemmed Scale-Invariant Localization of Electric Vehicle Charging Port via Semi-Global Matching of Binocular Images
title_short Scale-Invariant Localization of Electric Vehicle Charging Port via Semi-Global Matching of Binocular Images
title_sort scale invariant localization of electric vehicle charging port via semi global matching of binocular images
topic identification and location of charging port
SIFT feature extraction
nearest neighbor search feature matching
semi-global matching method
disparity calculation
url https://www.mdpi.com/2076-3417/12/10/5247
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AT mingyu scaleinvariantlocalizationofelectricvehiclechargingportviasemiglobalmatchingofbinocularimages
AT panpantang scaleinvariantlocalizationofelectricvehiclechargingportviasemiglobalmatchingofbinocularimages
AT weiwei scaleinvariantlocalizationofelectricvehiclechargingportviasemiglobalmatchingofbinocularimages
AT dongmeizhang scaleinvariantlocalizationofelectricvehiclechargingportviasemiglobalmatchingofbinocularimages