{"id":16001,"updated":"2025-01-23T00:03:53.202850+00:00","links":{},"created":"2025-01-18T22:49:23.691533+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00016001","sets":["581:899:900"]},"path":["900"],"owner":"1","recid":"16001","title":["格子座標の周期性を利用した画像拡大縮小の高速処理方式"],"pubdate":{"attribute_name":"公開日","attribute_value":"1983-11-15"},"_buckets":{"deposit":"6d0ac55b-8ee5-4c7f-9714-ad9dc1fd16bc"},"_deposit":{"id":"16001","pid":{"type":"depid","value":"16001","revision_id":0},"owners":[1],"status":"published","created_by":1},"item_title":"格子座標の周期性を利用した画像拡大縮小の高速処理方式","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"格子座標の周期性を利用した画像拡大縮小の高速処理方式"},{"subitem_title":"A High - Speed Scaling Method of Digital Images Utilizing Periodicity of Lattice Coordinates","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"論文","subitem_subject_scheme":"Other"}]},"item_type_id":"2","publish_date":"1983-11-15","item_2_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"（株）日立製作所システム開発研究所"},{"subitem_text_value":"（株）日立製作所システム開発研究所"},{"subitem_text_value":"（株）日立製作所システム開発研究所"}]},"item_2_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Systems Development Laboratory, Hitachi,Ltd","subitem_text_language":"en"},{"subitem_text_value":"Systems Development Laboratory, Hitachi, Ltd","subitem_text_language":"en"},{"subitem_text_value":"Systems Development Laboratory, Hitachi, Ltd","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/16001/files/IPSJ-JNL2406004.pdf"},"date":[{"dateType":"Available","dateValue":"1985-11-15"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-JNL2406004.pdf","filesize":[{"value":"779.0 kB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"8"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"a3694baa-62e0-48c7-9632-9181be7b1347","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 1983 by the Information Processing Society of Japan"}]},"item_2_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"田畑, 邦晃"},{"creatorName":"町田, 哲夫"},{"creatorName":"武田, 晴夫"}],"nameIdentifiers":[{}]}]},"item_2_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Kuniaki, Tabata","creatorNameLang":"en"},{"creatorName":"Tetsuo, Machida","creatorNameLang":"en"},{"creatorName":"Haruo, Takeda","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_2_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00116647","subitem_source_identifier_type":"NCID"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_6501","resourcetype":"journal article"}]},"item_2_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1882-7764","subitem_source_identifier_type":"ISSN"}]},"item_2_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"印影・手書きメモ等の画像を含む文書編集処理を始め 各種の画像処理分野において 画像を所望の倍率で拡大・縮小(線密度変換)する機能が必要とされる.本論文では 2次元ディジタル画像の高速拡大縮小方式を提案し その基本原理 ハードウェア構成 処理時間評価について報告する.本方式は 単純なシフト操作で画像データのアクセスを制御するとともに 変換画素の濃度計算を並列処理するものである.従来 拡大縮小における座標計算は 座標変換式による算術演算を画素ごとに繰り返す方法が用いられているが これと異なり 本方式は 格子座標の周期性を利用し その部分列を循環シフトで参照する点に特徴がある.試算例では 変換画素あたりの処理時間は 拡大処理が(225+25/β)/K ns/画素 縮小処理が(225/β+25)/K ns/画素となる(ここに βは倍率 Kは並列度を示し シフト・クロック周期を200nsと仮定).この処理速度は従来方式の1.0?2.2μs/画素に比較して 拡大処理が4K?9K倍 縮小処理が4βKー9βK倍に相当し 高速化に有効であることを確認した.","subitem_description_type":"Other"}]},"item_2_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"763","bibliographic_titles":[{"bibliographic_title":"情報処理学会論文誌"}],"bibliographicPageStart":"754","bibliographicIssueDates":{"bibliographicIssueDate":"1983-11-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"6","bibliographicVolumeNumber":"24"}]},"relation_version_is_last":true,"weko_creator_id":"1"}}