{"_buckets": {"deposit": "3d10e56c-b1e8-404e-a30f-899adf0de800"}, "_deposit": {"id": "1827", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "1827"}, "status": "published"}, "_oai": {"id": "oai:niigata-u.repo.nii.ac.jp:00001827", "sets": ["454", "425"]}, "item_5_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "1998-12", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "12", "bibliographicPageEnd": "2535", "bibliographicPageStart": "2528", "bibliographicVolumeNumber": "E81-B", "bibliographic_titles": [{"bibliographic_title": "IEICE transactions on communications"}, {"bibliographic_title": "IEICE transactions on communications", "bibliographic_titleLang": "en"}]}]}, "item_5_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "A zerotree image-coding scheme is introduced that effectively exploits the inter-scale self-similarities found in the octave decomposition by a wavelet transform. A zerotree is usuful for efficiently coding wavelet coefficients ; its efficiency was proved by Shapiro\u0027s EZW. In the EZW coder, wavelet coefficients are sympolized, then entropy-coded for further compression. In this paper, we analyze the symbols produced by the EZW coder and discuss the entropy for a symbol. We modify the procedure used for symbol-stream generation to produce lower entropy. First, we modify the fixed relation between a parent and children used in the EZW coder to raise the propability that a significant parent has significant children. The modified relation is flexibly modified again based on the observation that a significant coefficient is more likely to have significant coefficients in its neighborhood. The three relations are compared in terms of the number of symbols they produce.", "subitem_description_type": "Abstract"}]}, "item_5_full_name_3": {"attribute_name": "著者別名", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "5772", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "菊池, 久和"}]}, {"nameIdentifiers": [{"nameIdentifier": "5773", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "佐々木, 重信"}]}]}, "item_5_publisher_7": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "The Institute of Electronics, Information and Communication Engineers"}]}, "item_5_relation_31": {"attribute_name": "異版である", "attribute_value_mlt": [{"subitem_relation_type": "isVersionOf", "subitem_relation_type_id": {"subitem_relation_type_id_text": "http://www.ieice.org/jpn/trans_online/", "subitem_relation_type_select": "URI"}}]}, "item_5_rights_15": {"attribute_name": "権利", "attribute_value_mlt": [{"subitem_rights": "copyright©1998 IEICE（許諾番号07RB0183）"}]}, "item_5_select_19": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_5_source_id_11": {"attribute_name": "書誌レコードID", "attribute_value_mlt": [{"subitem_source_identifier": "AA10826261", "subitem_source_identifier_type": "NCID"}]}, "item_5_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "09168516", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Joo, Sanghyun"}], "nameIdentifiers": [{"nameIdentifier": "5768", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kikuchi, Hisakazu"}], "nameIdentifiers": [{"nameIdentifier": "5769", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Sasaki, Shigenobu"}], "nameIdentifiers": [{"nameIdentifier": "5770", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Shin, Jaeho"}], "nameIdentifiers": [{"nameIdentifier": "5771", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2019-07-29"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "1_0022.pdf", "filesize": [{"value": "752.7 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 752700.0, "url": {"label": "1_0022.pdf", "url": "https://niigata-u.repo.nii.ac.jp/record/1827/files/1_0022.pdf"}, "version_id": "8ec8701c-4b58-4710-b1a5-58f5d98735f6"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "image compression", "subitem_subject_scheme": "Other"}, {"subitem_subject": "wavelet transform", "subitem_subject_scheme": "Other"}, {"subitem_subject": "zerotree coding", "subitem_subject_scheme": "Other"}, {"subitem_subject": "entropy coding", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "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": "A new image coding technique with low entropy using a flexible zerotree", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "A new image coding technique with low entropy using a flexible zerotree"}, {"subitem_title": "A new image coding technique with low entropy using a flexible zerotree", "subitem_title_language": "en"}]}, "item_type_id": "5", "owner": "1", "path": ["454", "425"], "permalink_uri": "http://hdl.handle.net/10191/6216", "pubdate": {"attribute_name": "公開日", "attribute_value": "2008-04-08"}, "publish_date": "2008-04-08", "publish_status": "0", "recid": "1827", "relation": {}, "relation_version_is_last": true, "title": ["A new image coding technique with low entropy using a flexible zerotree"], "weko_shared_id": null}