Vision-Based Detection of Low-Emission Sources in Suburban Areas Using Unmanned Aerial Vehicles

The paper discusses the problem of detecting emission sources in a low buildings area using unmanned aerial vehicles. The problem was analyzed, and methods of solving it were presented. Various data acquisition scenarios and their impact on the feasibility of the task were analyzed. A method for det...

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Main Author: Marek Szczepański
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/4/2235
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author Marek Szczepański
author_facet Marek Szczepański
author_sort Marek Szczepański
collection DOAJ
description The paper discusses the problem of detecting emission sources in a low buildings area using unmanned aerial vehicles. The problem was analyzed, and methods of solving it were presented. Various data acquisition scenarios and their impact on the feasibility of the task were analyzed. A method for detecting smoke objects over buildings using stationary video sequences acquired with a drone in hover with the camera in the nadir position is proposed. The method uses differential frame information from stabilized video sequences and the YOLOv7 classifier. A convolutional network classifier was used to detect the roofs of buildings, using a custom training set adapted to the type of data used. Such a solution, although quite effective, is not very practical for the end user, but it enables the automatic generation of a comprehensive training set for classifiers based on deep neural networks. The effectiveness of such a solution was tested for the latest version of the YOLOv7 classifier. The tests proved the effectiveness of the described method, both for single images and video sequences. In addition, the obtained classifier correctly recognizes objects for sequences that do not meet some of the initial assumptions, such as the angle of the camera capturing the image.
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spelling doaj.art-e20e407f3eae4c50a4ad79ae4325fe142023-11-16T23:12:07ZengMDPI AGSensors1424-82202023-02-01234223510.3390/s23042235Vision-Based Detection of Low-Emission Sources in Suburban Areas Using Unmanned Aerial VehiclesMarek Szczepański0Department of Data Science and Engineering, Silesian University of Technology, Akademicka 16, 44-100 Gliwice, PolandThe paper discusses the problem of detecting emission sources in a low buildings area using unmanned aerial vehicles. The problem was analyzed, and methods of solving it were presented. Various data acquisition scenarios and their impact on the feasibility of the task were analyzed. A method for detecting smoke objects over buildings using stationary video sequences acquired with a drone in hover with the camera in the nadir position is proposed. The method uses differential frame information from stabilized video sequences and the YOLOv7 classifier. A convolutional network classifier was used to detect the roofs of buildings, using a custom training set adapted to the type of data used. Such a solution, although quite effective, is not very practical for the end user, but it enables the automatic generation of a comprehensive training set for classifiers based on deep neural networks. The effectiveness of such a solution was tested for the latest version of the YOLOv7 classifier. The tests proved the effectiveness of the described method, both for single images and video sequences. In addition, the obtained classifier correctly recognizes objects for sequences that do not meet some of the initial assumptions, such as the angle of the camera capturing the image.https://www.mdpi.com/1424-8220/23/4/2235air pollutionaerial imagingimage processingobject detectiondeep learningvideo processing
spellingShingle Marek Szczepański
Vision-Based Detection of Low-Emission Sources in Suburban Areas Using Unmanned Aerial Vehicles
Sensors
air pollution
aerial imaging
image processing
object detection
deep learning
video processing
title Vision-Based Detection of Low-Emission Sources in Suburban Areas Using Unmanned Aerial Vehicles
title_full Vision-Based Detection of Low-Emission Sources in Suburban Areas Using Unmanned Aerial Vehicles
title_fullStr Vision-Based Detection of Low-Emission Sources in Suburban Areas Using Unmanned Aerial Vehicles
title_full_unstemmed Vision-Based Detection of Low-Emission Sources in Suburban Areas Using Unmanned Aerial Vehicles
title_short Vision-Based Detection of Low-Emission Sources in Suburban Areas Using Unmanned Aerial Vehicles
title_sort vision based detection of low emission sources in suburban areas using unmanned aerial vehicles
topic air pollution
aerial imaging
image processing
object detection
deep learning
video processing
url https://www.mdpi.com/1424-8220/23/4/2235
work_keys_str_mv AT marekszczepanski visionbaseddetectionoflowemissionsourcesinsuburbanareasusingunmannedaerialvehicles