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            <front>

                <journal-meta>
                                                                <journal-id>ijegeo</journal-id>
            <journal-title-group>
                                                                                    <journal-title>International Journal of Environment and Geoinformatics</journal-title>
            </journal-title-group>
                                        <issn pub-type="epub">2148-9173</issn>
                                                                                            <publisher>
                    <publisher-name>Istanbul University</publisher-name>
                </publisher>
                    </journal-meta>
                <article-meta>
                                        <article-id pub-id-type="doi">10.30897/ijegeo.1010741</article-id>
                                                                <article-categories>
                                            <subj-group  xml:lang="en">
                                                            <subject>Photogrammetry and Remote Sensing</subject>
                                                    </subj-group>
                                            <subj-group  xml:lang="tr">
                                                            <subject>Fotogrametri ve Uzaktan Algılama</subject>
                                                    </subj-group>
                                    </article-categories>
                                                                                                                                                        <title-group>
                                                                                                                        <article-title>Comparison of YOLO Versions for Object Detection from Aerial Images</article-title>
                                                                                                                                        </title-group>
            
                                                    <contrib-group content-type="authors">
                                                                        <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0003-2273-7751</contrib-id>
                                                                <name>
                                    <surname>Atik</surname>
                                    <given-names>Muhammed Enes</given-names>
                                </name>
                                                                    <aff>İSTANBUL TEKNİK ÜNİVERSİTESİ, FEN BİLİMLERİ ENSTİTÜSÜ, FOTOGRAMETRİ (DR)</aff>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0002-1608-0119</contrib-id>
                                                                <name>
                                    <surname>Duran</surname>
                                    <given-names>Zaide</given-names>
                                </name>
                                                                    <aff>İSTANBUL TEKNİK ÜNİVERSİTESİ</aff>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0003-4772-5992</contrib-id>
                                                                <name>
                                    <surname>Özgünlük</surname>
                                    <given-names>Roni</given-names>
                                </name>
                                                                    <aff>ISTANBUL TECHNICAL UNIVERSITY</aff>
                                                            </contrib>
                                                                                </contrib-group>
                        
                                        <pub-date pub-type="pub" iso-8601-date="20220602">
                    <day>06</day>
                    <month>02</month>
                    <year>2022</year>
                </pub-date>
                                        <volume>9</volume>
                                        <issue>2</issue>
                                        <fpage>87</fpage>
                                        <lpage>93</lpage>
                        
                        <history>
                                    <date date-type="received" iso-8601-date="20211016">
                        <day>10</day>
                        <month>16</month>
                        <year>2021</year>
                    </date>
                                                    <date date-type="accepted" iso-8601-date="20211130">
                        <day>11</day>
                        <month>30</month>
                        <year>2021</year>
                    </date>
                            </history>
                                        <permissions>
                    <copyright-statement>Copyright © 2014, International Journal of Environment and Geoinformatics</copyright-statement>
                    <copyright-year>2014</copyright-year>
                    <copyright-holder>International Journal of Environment and Geoinformatics</copyright-holder>
                </permissions>
            
                                                                                                <abstract><p>Many different disciplines use deep Learning algorithms for various purposes. In recent years, object detection by deep learning from aerial or terrestrial images has become a popular research area. In this study, object detection application was performed by training the YOLOv2 and YOLOv3 algorithms in the Google Colaboratory cloud service with the help of Python software language with the DOTA dataset consisting of aerial photographs. 43 aerial photographs containing 9 class objects were used for evaluation. Accuracy analyzes of these two algorithms were made according to Recall, Precision and F-score for 9 classes, and the results were compared accordingly. YOLOv2 gave better results in 5 out of 9 classes, while YOLOv3 gave better results in recognizing small objects. While YOLOv2 can detect objects in an average photograph in 43 seconds, YOLOv3 has achieved superior performance in terms of time by detecting objects in an average of 2.5 seconds.</p></abstract>
                                                                                    
            
                                                            <kwd-group>
                                                    <kwd>Computer Vision</kwd>
                                                    <kwd>  Deep Learning</kwd>
                                                    <kwd>  Object Detection</kwd>
                                                    <kwd>  YOLO</kwd>
                                                    <kwd>  Aerial Image</kwd>
                                            </kwd-group>
                                                        
                                                                                                                                                    </article-meta>
    </front>
    <back>
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