{"created":"2023-06-19T07:30:34.096769+00:00","id":506,"links":{},"metadata":{"_buckets":{"deposit":"b5cc18c6-7042-42f4-b23e-fd87b8e5aa46"},"_deposit":{"created_by":3,"id":"506","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"506"},"status":"published"},"_oai":{"id":"oai:nodai.repo.nii.ac.jp:00000506","sets":["47:48:109:110"]},"author_link":["2941","2938","2940","2939"],"item_1_biblio_info_12":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueNumber":"1","bibliographicPageEnd":"28","bibliographicPageStart":"21","bibliographicVolumeNumber":"58","bibliographic_titles":[{}]}]},"item_1_description_10":{"attribute_name":"抄録(日)","attribute_value_mlt":[{"subitem_description":"本報は,MODIS(Moderate Resolution Imaging Spectroradiometer)センサから取得された画像データより得られる正規化植生指数(NDVI)に対し,Wavelet 変換による時間周波数応答解析を適用し水稲圃場を分類するアルゴリズムを提案する。NDVI の波形から計算される Wavelet パワーは,水稲作期に対応しており,水稲圃場の特徴抽出に利用できる。そこで,Wavelet パワーの値により水稲圃場の特徴を決定した後,NDVIの統計情報とWaveletパワーを組み合わせた線形判別分析を行い,判別関数の値から自動的に土地利用分類を行う手法を提案する。本研究では,ベトナム南部のメコンデルタ地域を解析対象とする。本報では,250 m 解像度の10日間コンポジット画像から作成された,2009年 1月から 2011年 12月までの 3ヶ年の NDVI データを使用し解析を実施した。解析結果から,MODIS センサのような空間的に低解像度の衛星画像データを使用した場合であっても,NDVI の Wavelet パワーと基本統計量の組み合わせによる線形判別分析が,水稲圃場分類において効果的である事が確認できた。さらに,水稲圃場分類に必要な NDVI データの解析開始時期を播種期に一致させて計算することで,最も妥当な分類結果が得られることが判明した。しかし,現地の正確な土地利用データが不在であることから,提案手法の精度検証が今後の課題として残った。","subitem_description_type":"Other"}]},"item_1_description_11":{"attribute_name":"抄録(英)","attribute_value_mlt":[{"subitem_description":"An algorithm for the classification of paddy area was proposed by utilizing wavelet transform as time frequency analysis of Normalized Difference Vegetation Index (NDVI) data series derived from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor. The calculated wavelet powers of the NDVI wave correspond to the rice cropping calendar, and were used to obtain the characteristics of paddy area. After determining features of the paddy area, Linear Discriminant Analysis (LDA) is assessed for land-use classification using statistical values of NDVI data series and calculated wavelet powers. This research was conducted in the Mekong Delta, southern Vietnam. Three years, NDVI data series (January 2009 up to December 2011) of 10-day composite images with 250 m spatial resolution were applied. The result shows that the combination of wavelet powers and statistical values of NDVI data for LDA worked well for the classification, even when low resolution satellite images like MODIS were used. Furthermore, paddy classification can obtain the most appropriate result if the starting point of the calculation is adjusted to the rice planting period. However, verification of accuracy has not yet been done due to lack of the latest land-use data of the study area, and still remains as a future subject.","subitem_description_type":"Other"}]},"item_1_description_13":{"attribute_name":"レポート・講演番号","attribute_value_mlt":[{"subitem_description":"E","subitem_description_type":"Other"}]},"item_1_description_15":{"attribute_name":"表示順","attribute_value_mlt":[{"subitem_description":"4","subitem_description_type":"Other"}]},"item_1_description_16":{"attribute_name":"アクセション番号","attribute_value_mlt":[{"subitem_description":"KJ00008527980","subitem_description_type":"Other"}]},"item_1_description_8":{"attribute_name":"記事種別(日)","attribute_value_mlt":[{"subitem_description":"論文","subitem_description_type":"Other"}]},"item_1_description_9":{"attribute_name":"記事種別(英)","attribute_value_mlt":[{"subitem_description":"Article","subitem_description_type":"Other"}]},"item_1_source_id_1":{"attribute_name":"雑誌書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AN00164184","subitem_source_identifier_type":"NCID"}]},"item_1_text_6":{"attribute_name":"著者所属(日)","attribute_value_mlt":[{"subitem_text_value":"東京農業大学大学院農学研究科国際バイオビジネス学専攻 "},{"subitem_text_value":" 東京農業大学国際食料情報学部国際バイオビジネス学科"}]},"item_1_text_7":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Department of International Bio-business Studies, Graduate School of Agriculture, Tokyo University of Agriculture "},{"subitem_text_language":"en","subitem_text_value":" Department of International Bio-business Studies, Faculty of International Agriculture and Food Studies, Tokyo University of Agriculture"}]},"item_1_title_3":{"attribute_name":"論文名よみ","attribute_value_mlt":[{"subitem_title":"スイトウ ホジョウ ブンルイ ノ タメノ ジケイレツ MODIS NDVI ニ タイスル Wavelet ヘンカン ノ オウヨウ"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"ラマドナ, サフィル"},{"creatorName":"ラマドナ, サフィル","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"2938","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"畑中 勝守"},{"creatorName":"ハタナカ, カツモリ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"2939","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ramadhona, Saville","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"2940","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hatanaka Katsumori","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"2941","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-04-20"}],"displaytype":"detail","filename":"KJ00008527980.pdf","filesize":[{"value":"2.0 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"KJ00008527980.pdf","url":"https://nodai.repo.nii.ac.jp/record/506/files/KJ00008527980.pdf"},"version_id":"208b5b88-a50b-468a-839b-bdebea102533"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"水稲圃場分類 ","subitem_subject_scheme":"Other"},{"subitem_subject":" ウェーブレット変換 ","subitem_subject_scheme":"Other"},{"subitem_subject":" 判別分析 ","subitem_subject_scheme":"Other"},{"subitem_subject":" 正規化植生指数 ","subitem_subject_scheme":"Other"},{"subitem_subject":" MODIS","subitem_subject_scheme":"Other"},{"subitem_subject":"Paddy area classifications ","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":" Wavelet transform ","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":" Discriminant analysis ","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":" NDVI ","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":" MODIS","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"水稲圃場分類のための時系列 MODIS NDVI に対する Wavelet 変換の応用","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"水稲圃場分類のための時系列 MODIS NDVI に対する Wavelet 変換の応用"},{"subitem_title":"Application of Wavelet Transform for Paddy Area Classification Using MODIS NDVI Data Series","subitem_title_language":"en"}]},"item_type_id":"1","owner":"3","path":["110"],"pubdate":{"attribute_name":"公開日","attribute_value":"2013-06-14"},"publish_date":"2013-06-14","publish_status":"0","recid":"506","relation_version_is_last":true,"title":["水稲圃場分類のための時系列 MODIS NDVI に対する Wavelet 変換の応用"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-06-19T07:50:04.291215+00:00"}