{"created":"2021-03-01T06:05:37.821554+00:00","id":1945,"links":{},"metadata":{"_buckets":{"deposit":"0e9e69db-9de3-4f80-a203-673c5e8cc932"},"_deposit":{"id":"1945","owners":[],"pid":{"revision_id":0,"type":"depid","value":"1945"},"status":"published"},"_oai":{"id":"oai:niigata-u.repo.nii.ac.jp:00001945","sets":["423:424:425","453:454"]},"author_link":["6345","6346","6347"],"control_number":"1945","item_1627363077551":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_5_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2010-09","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"9","bibliographicPageEnd":"2634","bibliographicPageStart":"2626","bibliographicVolumeNumber":"E93-D","bibliographic_titles":[{"bibliographic_title":"IEICE transactions on information and systems","bibliographic_titleLang":"en"}]}]},"item_5_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We investigated suitable spatial inverse filters for cortical dipole imaging from the scalp electroencephalogram (EEG). The effects of incorporating statistical information of signal and noise into inverse procedures were examined by computer simulations and experimental studies. The parametric projection filter (PPF) and parametric Wiener filter (PWF) were applied to an inhomogeneous three-sphere volume conductor head model. The noise covariance matrix was estimated by applying independent component analysis (ICA) to scalp potentials. The present simulation results suggest that the PPF and the PWF provided excellent performance when the noise covariance was estimated from the differential noise between EEG and the separated signal using ICA and the signal covariance was estimated from the separated signal. Moreover, the spatial resolution of the cortical dipole imaging was improved while the influence of noise was suppressed by including the differential noise at the instant of the imaging and by adjusting the duration of noise sample according to the signal to noise ratio. We applied the proposed imaging technique to human experimental data of visual evoked potential and obtained reasonable results that coincide to physiological knowledge.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_5_publisher_7":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"電子情報通信学会","subitem_publisher_language":"ja"}]},"item_5_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://doi.org/10.1587/transinf.e93.d.2626","subitem_relation_type_select":"DOI"}}]},"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://search.ieice.org/","subitem_relation_type_select":"URI"}}]},"item_5_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"Copyright (C) 2010 IEICE"},{"subitem_rights":"本文データは学協会の許諾に基づき電子情報通信学会のサイトから複製したものである"}]},"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":"AA10826272","subitem_source_identifier_type":"NCID"}]},"item_5_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0916-8532","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Hori, Junichi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"6345","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Sunaga, Kentarou"}],"nameIdentifiers":[{"nameIdentifier":"6346","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Watanabe, Satoru","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"6347","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","filename":"E93-D_9_2626-2634.pdf","filesize":[{"value":"715.5 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"E93-D_9_2626-2634.pdf","url":"https://niigata-u.repo.nii.ac.jp/record/1945/files/E93-D_9_2626-2634.pdf"},"version_id":"4e3716a8-6848-44f6-ba7e-28f4822dbbb4"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"EEG","subitem_subject_scheme":"Other"},{"subitem_subject":"cortical dipole imaging","subitem_subject_scheme":"Other"},{"subitem_subject":"spatial inverse filter","subitem_subject_scheme":"Other"},{"subitem_subject":"covariance","subitem_subject_scheme":"Other"},{"subitem_subject":"independent component analysis","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":"Signal and Noise Covariance Estimation Based on ICA for High-Resolution Cortical Dipole Imaging","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Signal and Noise Covariance Estimation Based on ICA for High-Resolution Cortical Dipole Imaging","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["454","425"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2014-02-28"},"publish_date":"2014-02-28","publish_status":"0","recid":"1945","relation_version_is_last":true,"title":["Signal and Noise Covariance Estimation Based on ICA for High-Resolution Cortical Dipole Imaging"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-12-15T03:34:48.078548+00:00"}