{"updated":"2025-01-22T18:44:56.435128+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00027032","sets":["1164:2036:2049:2051"]},"path":["2051"],"owner":"1","recid":"27032","title":["オールパスフィルタを用いた画像ロシー・ロスレス符号化"],"pubdate":{"attribute_name":"公開日","attribute_value":"2006-10-27"},"_buckets":{"deposit":"95ad2872-57e5-4098-a235-8661da313c9e"},"_deposit":{"id":"27032","pid":{"type":"depid","value":"27032","revision_id":0},"owners":[1],"status":"published","created_by":1},"item_title":"オールパスフィルタを用いた画像ロシー・ロスレス符号化","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"オールパスフィルタを用いた画像ロシー・ロスレス符号化"},{"subitem_title":"Lossy to Lossless Image Coding Using Allpass Filters","subitem_title_language":"en"}]},"item_type_id":"4","publish_date":"2006-10-27","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"電気通信大学情報通信工学専攻"},{"subitem_text_value":"電気通信大学情報通信工学専攻"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"The University of Electro-Communications","subitem_text_language":"en"},{"subitem_text_value":"The University of Electro-Communications","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"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/27032/files/IPSJ-SLDM06126032.pdf"},"date":[{"dateType":"Available","dateValue":"2008-10-27"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-SLDM06126032.pdf","filesize":[{"value":"788.5 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":"10"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"367ecf28-5b42-4c6f-a618-1be3b73479f1","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2006 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"大野弘祐"},{"creatorName":"張煕"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Kosuke, OHNO","creatorNameLang":"en"},{"creatorName":"Xi, ZHANG","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11451459","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"ウェーブレット変換を用いた画像圧縮において、より良い性能を得るためには、直交条件と直線位相条件が要求される。これらの条件を同時に満たす手法として、オールパスフィルタを用いた直交対称ウェーブレットフィルタが提案されている。このIIRウェーブレットフィルタを画像ロシー圧縮に適用すると、従来のFIRウェーブレットフィルタと比較して優れたロシー圧縮性能が得られることが既に示された。本稿では、オールパスフィルタによる可逆ウェーブレット変換の実現法を提案する。提案した可逆構成では、IIRフィルタ処理の初期値をサイド情報として伝送する必要があるため、このサイド情報を効率的に伝送する方法も示す。そして、幾つかの自然画像を用いて提案法の画像ロスレス・ロシー圧縮性能の評価を行い、その結果、提案法は従来法と比較して、ロシー・ロスレス圧縮性能ともに同等以上の性能が得られることを示す。","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"To obtain a better coding performance in wavelet-based image compression, it is necessary for wavelet filter banks to satisfy the orthogonality condition and linear phase characteristic. To satisfy these conditions, a class of IIR wavelet filters have been proposed by using allpass filters, and then a better coding performance has been obtained for lossy image coding. In this paper, we propose an effective implementation of reversible wavelet transform by using allpass filters. This method needs to transfer the side information that is used to start IIR filtering. We give a technique transfering these data efficiently. The experimental results show that the proposed wavelet filters are better than the conventional wavelets in both lossless and lossy performance.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"188","bibliographic_titles":[{"bibliographic_title":"情報処理学会研究報告システムLSI設計技術（SLDM）"}],"bibliographicPageStart":"183","bibliographicIssueDates":{"bibliographicIssueDate":"2006-10-27","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"111(2006-SLDM-126)","bibliographicVolumeNumber":"2006"}]},"relation_version_is_last":true,"weko_creator_id":"1"},"created":"2025-01-18T22:57:29.827495+00:00","id":27032,"links":{}}