{"created":"2023-05-15T12:10:13.481878+00:00","id":15881,"links":{},"metadata":{"_buckets":{"deposit":"1ef16f25-02b6-425a-a0ca-a6405b58c51d"},"_deposit":{"created_by":19,"id":"15881","owners":[19],"pid":{"revision_id":0,"type":"depid","value":"15881"},"status":"published"},"_oai":{"id":"oai:iwate-u.repo.nii.ac.jp:00015881","sets":["1504:1510"]},"author_link":["95560","96043","96042","96046","96045","96044","95565","96047","95562","95563","95561","95564","95559","96041"],"item_16_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2022-01-31","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"16","bibliographicPageStart":"5","bibliographicVolumeNumber":"37","bibliographic_titles":[{"bibliographic_title":"森林利用学会誌"},{"bibliographic_title":"Journal of The Japan Forest Engineering Society","bibliographic_titleLang":"en"}]}]},"item_16_date_6":{"attribute_name":"登録日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2023-01-12"}]},"item_16_description_11":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"一般的にSfM（Structure from Motion）では，主に多視点から撮影された複数枚の静止画像が用いられる。このため静止画を撮影する際には，撮影のたびに立ち止まり，OL（オーバーラップ）率やSL（サイドラップ）率に常に注意しながらの撮影が必要となり，撮影手法が煩雑である。本研究では，作業道の三次元点群データ化のための簡易的な撮影手法を明らかにすることを目的とし，作業道においてデジタルビデオカメラによる歩きながら撮影した動画データを基に，三次元点群データの構築を試みた。この結果，撮影した動画からフレームごとに抽出した180枚の静止画像から，SfM処理ソフトにより詳細な三次元点群を構築することができた。この際，品質等による画像の選別やマニュアルでキーポイントを設定することなく，すべての画像を自動で合成することができた。この結果から，作業道の三次元点群データの構築のための簡易的な手法として，動画撮影が活用できる可能性が明らかとなった。またこの結果を基にPC上で簡易的な出来形測量を行い，縦断図および横断図を作成し，動画を基にした点群データの再現性や動画撮影時の留意点を明らかにした。","subitem_description_type":"Abstract"}]},"item_16_description_12":{"attribute_name":"Abstract","attribute_value_mlt":[{"subitem_description":"Structure from motion (SfM) requires multiple images taken from multiple viewpoints. For this reason, when shooting an image, it is necessary to stop after each shot and always pay attention to the overlap and sidelap rates. This study elucidates a simpler method for three-dimensional (3D) point cloud data conversion of work road images. A follow shot was performed while walking with a digital video camera, after which a 3D structure of the work road was made based on the video data. Therefore, a detailed 3D point cloud using an SfM processing software (Pix4Dmapper) was constructed using images (180) extracted from each captured frame of the video. At this time, all images could be automatically matched without selecting images according to their quality or manually setting key points. These results showed that follow shooting could be a simpler method for constructing 3D point cloud data of work roads. From these results, a simple survey was performed using a personal computer. Also, vertical and cross-sectional views were created, and the reproducibility of the point cloud data and the shooting method was clarified on the basis of the video.","subitem_description_type":"Other"}]},"item_16_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"96041","nameIdentifierScheme":"WEKO"}],"names":[{"name":"SUZUKI, Yasushi"}]},{"nameIdentifiers":[{"nameIdentifier":"96042","nameIdentifierScheme":"WEKO"}],"names":[{"name":"YOSHIMURA, Tetsuhiko"}]},{"nameIdentifiers":[{"nameIdentifier":"96043","nameIdentifierScheme":"WEKO"}],"names":[{"name":"HASEGAWA, Hisashi"}]},{"nameIdentifiers":[{"nameIdentifier":"96044","nameIdentifierScheme":"WEKO"}],"names":[{"name":"ARUGA, Kazuhiro"}]},{"nameIdentifiers":[{"nameIdentifier":"96045","nameIdentifierScheme":"WEKO"}],"names":[{"name":"SAITO, Masashi"}]},{"nameIdentifiers":[{"nameIdentifier":"96046","nameIdentifierScheme":"WEKO"}],"names":[{"name":"SHIRASAWA, Hiroaki"}]},{"nameIdentifiers":[{"nameIdentifier":"96047","nameIdentifierScheme":"WEKO"}],"names":[{"name":"YAMASAKI, Shin"}]}]},"item_16_link_13":{"attribute_name":"抄録（URL）","attribute_value_mlt":[{"subitem_link_text":"動画データによる作業道の三次元点群データの構築","subitem_link_url":"https://www.jstage.jst.go.jp/article/jjfes/35/4/35_35.203/_article/-char/ja/"}]},"item_16_publisher_14":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"森林利用学会"}]},"item_16_relation_26":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"info:doi/10.18945/jjfes.37.5","subitem_relation_type_select":"DOI"}}]},"item_16_rights_18":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"© 2022 森林利用学会"}]},"item_16_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"21896658","subitem_source_identifier_type":"ISSN"},{"subitem_source_identifier":"13423134","subitem_source_identifier_type":"ISSN"}]},"item_16_text_4":{"attribute_name":"著者(機関)","attribute_value_mlt":[{"subitem_text_value":"高知大学教育研究部自然科学系農学部門"},{"subitem_text_value":"島根大学生物資源科学部"},{"subitem_text_value":"京都大学フィールド科学教育研究センター"},{"subitem_text_value":"宇都宮大学農学部"},{"subitem_text_value":"岩手大学農学部"},{"subitem_text_value":"森林総合研究所"},{"subitem_text_value":"高知県立森林技術センター"}]},"item_16_version_type_27":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"鈴木, 保志"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"吉村, 哲彦"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"長谷川, 尚史"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"有賀, 一広"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"斎藤, 仁志"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"白澤, 紘明"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"山﨑, 真"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2023-01-12"}],"displaytype":"detail","filename":"jjfes-v37n1p5-16.pdf","filesize":[{"value":"1.1 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"jjfes-v37n1p5-16","url":"https://iwate-u.repo.nii.ac.jp/record/15881/files/jjfes-v37n1p5-16.pdf"},"version_id":"3e4ea621-d66a-491b-aad1-84fcf1d7e213"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"日本の森林地域における公道も含めた路網整備の方向性","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"日本の森林地域における公道も含めた路網整備の方向性"},{"subitem_title":"Perspective of road network improvement including public roads over forested area in Japan","subitem_title_language":"en"}]},"item_type_id":"16","owner":"19","path":["1510"],"pubdate":{"attribute_name":"公開日","attribute_value":"2023-01-12"},"publish_date":"2023-01-12","publish_status":"0","recid":"15881","relation_version_is_last":true,"title":["日本の森林地域における公道も含めた路網整備の方向性"],"weko_creator_id":"19","weko_shared_id":-1},"updated":"2023-05-15T12:39:41.070308+00:00"}