{"_buckets": {"deposit": "4439a79d-22c0-433f-813e-5549daeb484e"}, "_deposit": {"id": "2002767", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2002767"}, "status": "published"}, "_oai": {"id": "oai:u-ryukyu.repo.nii.ac.jp:02002767", "sets": ["1642837919706", "1642838407312"]}, "author_link": [], "item_1617186331708": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "南西諸島における荒廃原野の育林技術に関する基礎的研究 : 2. 空中写真の画像処理による荒廃原野の分布状況の解析について(附属演習林)", "subitem_1551255648112": "ja"}, {"subitem_1551255647225": "Studies on the silvicultural techniques of denuded forest land in south-west islands : 2. An analysis of distribution of denuded forest land by image processing of aerial photograph (Forestry Experiment Station)", "subitem_1551255648112": "en"}]}, "item_1617186419668": {"attribute_name": "Creator", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "平田, 永二", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "安里, 練雄", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "寺園, 隆一", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "Hirata, Eiji", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Asato, Isao", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Terazono, Ryuichi", "creatorNameLang": "en"}]}]}, "item_1617186476635": {"attribute_name": "Access Rights", "attribute_value_mlt": [{"subitem_1522299639480": "open access", "subitem_1600958577026": "http://purl.org/coar/access_right/c_abf2"}]}, "item_1617186609386": {"attribute_name": "Subject", "attribute_value_mlt": [{"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "空中写真"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "写真判読"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "画像処理"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "荒廃林地"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "aerial photograph"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "photo-interpretation"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "image processing"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "denuded forest land"}]}, "item_1617186626617": {"attribute_name": "Description", "attribute_value_mlt": [{"subitem_description": "本調査は,空中写真の判読と画像処理によって,どの程度の精度でススキ,ギンネンム生地及び広葉樹林等の分布が識別できるのかについて検討したものである。調査の結果を要約すると次の通りである。1) 空中写真の実体鏡のよる判読の精度は,かなり高く平均約90%に達している。特にギンネム生地,畑,建造物及び緑化木では殆ど100%に近い判読精度を示している。2) 教師付き分類法による画像処理の結果では,その分類精度は27.3%\u0026acd;88.9%で,平均51.3%である。最も分類精度の悪かったススキ生地では,その約41がギンネム,約18%がサトウキビにそれぞれ間違えて分類されており,トレーニングエリアの取り方に問題があったと考えられる。3) クラスタリングによる分類の精度は,11.1%\u0026acd;75.0%で,平均56.8%となって,教師付きに比べていくらか高い値を示しているが,実用的には,さらに誤差を小さくする工夫が必要である。4) ランドサットTMデータを用いてクラスタリングによる分類を行った結果は,空中写真の画像処理による分類よりも精度がかなり悪く,その平均はおよそ30%程度である。5) 写真判読,教師付き分類法,クラスタリング分類法及びランドサットデータによる分類法で各分類項目の面積を推定した結果,教師付き分類以外の方法ではほぼ近似した値となった。", "subitem_description_type": "Other"}, {"subitem_description": "The applicability of photo-interpretation and image processing of aerial photograph onto identification of growing areas of Miscanthus sinensis and Leucaena leucocephala and broad leaved forests was investigated in this work. The results of the investigation wre as follows : 1) An accuracy of interpretion by the stereoscope of aerial photograph was extremely high, reaching to about 90% in average. The values were almost 100% in the cases of growth-place of Leucaena leucocephala, field, buildings, and green plants. 2) Cassification accuracy obtained from the results of supesrvised classification by image processing was in a range of 27.3%-88.9% and 61.3% in average. The Miscanthus sinensis growing area gave the worst classification accuracy giving about 41% of its area to Leucaena leucocephala and about 18% to sugar cane as mistaks, indicating the presence of a problem in selecting training areas. 3) An accuacy of clustering classification was un a range of 11.1%-75.0% and 56.8% in average, showing slightly higher than the sulpesrvised classification. 4) The results of clustering classification using LANDSAT TM data gave an accuracy extremely lower than the classification by an image processing of aerial photograph, with an average of about 30%. 5) Excepting only supervised classification, photo-interpretation clustering classification, and classification using LANDSAT data gave almost same values.", "subitem_description_type": "Other"}, {"subitem_description": "紀要論文", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": "琉球大学農学部"}]}, "item_1617186702042": {"attribute_name": "Language", "attribute_value_mlt": [{"subitem_1551255818386": "jpn"}]}, "item_1617186783814": {"attribute_name": "Identifier", "attribute_value_mlt": [{"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/20.500.12000/3738"}]}, "item_1617186920753": {"attribute_name": "Source Identifier", "attribute_value_mlt": [{"subitem_1522646500366": "ISSN", "subitem_1522646572813": "0370-4246"}, {"subitem_1522646500366": "NCID", "subitem_1522646572813": "AN00250548"}]}, "item_1617186941041": {"attribute_name": "Source Title", "attribute_value_mlt": [{"subitem_1522650068558": "ja", "subitem_1522650091861": "琉球大学農学部学術報告"}, {"subitem_1522650068558": "en", "subitem_1522650091861": "The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus"}]}, "item_1617187056579": {"attribute_name": "Bibliographic Information", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "1996-12-01", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "43", "bibliographicPageEnd": "152", "bibliographicPageStart": "143"}]}, "item_1617258105262": {"attribute_name": "Resource Type", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_1617265215918": {"attribute_name": "Version Type", "attribute_value_mlt": [{"subitem_1522305645492": "VoR", "subitem_1600292170262": "http://purl.org/coar/version/c_970fb48d4fbd8a85"}]}, "item_1617605131499": {"attribute_name": "File", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "download_preview_message": "", "file_order": 0, "filename": "KJ00000161809.pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "", "size": 0, "url": {"objectType": "fulltext", "url": "https://u-ryukyu.repo.nii.ac.jp/record/2002767/files/KJ00000161809.pdf"}, "version_id": "beec3c01-2ce1-43eb-9299-922a81416d3f"}]}, "item_title": "南西諸島における荒廃原野の育林技術に関する基礎的研究 : 2. 空中写真の画像処理による荒廃原野の分布状況の解析について(附属演習林)", "item_type_id": "15", "owner": "1", "path": ["1642837919706", "1642838407312"], "permalink_uri": "http://hdl.handle.net/20.500.12000/3738", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2008-02-14"}, "publish_date": "2008-02-14", "publish_status": "0", "recid": "2002767", "relation": {}, "relation_version_is_last": true, "title": ["南西諸島における荒廃原野の育林技術に関する基礎的研究 : 2. 空中写真の画像処理による荒廃原野の分布状況の解析について(附属演習林)"], "weko_shared_id": -1}