{"created":"2023-03-31T02:47:37.267296+00:00","id":5944,"links":{},"metadata":{"_buckets":{"deposit":"3cc0018d-e89a-4373-aec7-346718a329cc"},"_deposit":{"id":"5944","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"5944"},"status":"published"},"_oai":{"id":"oai:nied-repo.bosai.go.jp:00005944","sets":[]},"author_link":[],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2012","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"6","bibliographicPageEnd":"6_146","bibliographicPageStart":"6_133","bibliographicVolumeNumber":"12","bibliographic_titles":[{"bibliographic_title":"日本地震工学会論文集","bibliographic_titleLang":"ja"},{"bibliographic_title":"Journal of Japan Association for Earthquake Engineering","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"衛星光学センサ画像を用いた建物被害把握は，これまでに数多く行われてきたが，直下視による衛星画像からは建物上面しか観察できないため，中間層倒壊などの被害を判読することが困難であった．そこで本研究では，地震前後画像から建物の影の長さを計測することで建物高さを求め，それらの差分から倒壊などの大被害を把握することを試みた．2003年アルジェリア地震において多数の建物被害が発生したBourmerdes市を対象として，地震前後に観測された QuickBird衛星を使用した．その結果，目視により大きな被害を判読できたかった幾つかの建物について，高さの変化により倒壊と判断することができた．しかし，建物が密集していたり周囲に障害物があるような場合では，影長さの計測が困難であった．また，影計測が不可能な曇天時や夜間における建物高さの推定法として，SAR強度画像上の建物の倒れ込み長を計測し，建物高さを求める検討も行った．その結果，画像分解能の制約から建物倒壊の把握という点では課題があるもののその有効性が示された．","subitem_description_language":"ja","subitem_description_type":"Other"},{"subitem_description":"Visual interpretation of optical satellite images is widely used to detect building damages after recent earthquakes in the world. However, since optical satellites images are acquired from the vertical direction, they can observe only roofs of buildings. Building damages such as mid-story collapse are often overlooked because the upper surfaces of buildings do not change so much. This paper proposes the method to detect this kind of building collapses from the change in building heights, estimated from the shadow lengths in optical images measured before and after an earthquake. Boumerdes city, Algeria, is selected as a case study site where many buildings were collapsed in the 2003 Boumerdes Earthquake. Two QuickBird images, taken before and two days after the earthquake, were employed. Based on the measurement of shadow lengths, some mid-story collapses were successfully detected. The measurement of building heights was also carried out using layover effects in SAR intensity images. The tests for TerraSAR-X images in Tokyo Metropolitan area showed good level of accuracy in building height measurement. These methods may provide useful information in detecting building damages, as well as from texture information.","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"公益社団法人 日本地震工学会","subitem_publisher_language":"ja"},{"subitem_publisher":"JAPAN ASSOCIATION FOR EARTHQUAKE ENGINEERING","subitem_publisher_language":"en"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.5610/jaee.12.6_133"}}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"岩崎 洋志","creatorNameLang":"ja"},{"creatorName":"IWASAKI Yoji","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"リュウ ウェン","creatorNameLang":"ja"},{"creatorName":"WEN Liu","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"山崎 文雄","creatorNameLang":"ja"},{"creatorName":"YAMAZAKI Fumio","creatorNameLang":"en"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_title":"光学センサ画像における日影長さとSAR強度画像における倒れ込み量に基づく建物高さと地震による倒壊の検出","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"光学センサ画像における日影長さとSAR強度画像における倒れ込み量に基づく建物高さと地震による倒壊の検出","subitem_title_language":"ja"},{"subitem_title":"DETECTION OF BUILDING HEIGHT AND COLLAPSE MODE FROM THE MEASUREMENT OF SHADOW LENGTH IN OPTICAL IMAGES AND LAYOVER IN SAR INTENSITY IMAGES","subitem_title_language":"en"}]},"item_type_id":"40001","owner":"1","path":["1670839190650"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2023-03-30"},"publish_date":"2023-03-30","publish_status":"0","recid":"5944","relation_version_is_last":true,"title":["光学センサ画像における日影長さとSAR強度画像における倒れ込み量に基づく建物高さと地震による倒壊の検出"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-08T09:33:12.699205+00:00"}