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        <identifier>oai:ipsj.ixsq.nii.ac.jp:00228904</identifier>
        <datestamp>2025-01-19T11:40:38Z</datestamp>
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          <dc:title>心音測定システムへのランダムアンダーサンプリングを活用した圧縮センシング適用に関する考察</dc:title>
          <dc:title xml:lang="en">Study on the Application of Compressed Sensing Utilizing Random Undersampling to Heart Sound Measurement System</dc:title>
          <jpcoar:creator>
            <jpcoar:creatorName>山本, 智也</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>兼本, 大輔</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>枡田, 浩禎</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName>廣瀬, 哲也</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Tomoya, Yamamoto</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Daisuke, Kanemoto</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Hirotada, Masuda</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="en">Tetsuya, Hirose</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:subject subjectScheme="Other">シミュレーション</jpcoar:subject>
          <datacite:description descriptionType="Other">病院で行われる聴診は，非侵襲的かつ診察が手軽で即座に結果が出る上，心疾患などの重大な疾患を検知できるため，長年にわたり広く実施されている．また近年では，心疾患の診断を病院に限定せず，更に手軽に診断可能なウェアラブル心音測定デバイスの開発が求められている．そこで我々は，デバイス開発における課題を解決するために，ランダムアンダーサンプリング型心音測定システムへの圧縮センシングの適用を検討している．本論文では，特に低消費電力化と取得データの高精度化に焦点を当てて議論を行い，心音測定システムにおいて，圧縮センシングを応用する際の重要な設計パラメータであるブロック長を 140 にすると，圧縮比 9 倍で NMSE が 0.035 の高精度復元が可能であることが確認できた．</datacite:description>
          <datacite:description descriptionType="Other">For many years, hospital auscultation has been widely utilized since it is non-invasive, simple to do, yields quick ﬁndings, and can detect major conditions such as heart disease. Recently, there is a need for the development of wearable heart sound measurement devices to make the diagnosis of cardiac diseases easier and not limited to hospitals. In this study, we investigated the application of heart sound measurement system utilizing compressed sensing with a random undersampling. In this paper, we focus on low power consumption and high data accuracy. As a result, it was conﬁrmed that a highly accurate reconstruction with an NMSE of 0.035 is possible with a compression ratio of 9 when the block length is set to 140, which is an important design parameter when compressive sensing is applied to a cardiac sound measurement system.</datacite:description>
          <dc:publisher xml:lang="ja">情報処理学会</dc:publisher>
          <datacite:date dateType="Issued">2023-11-10</datacite:date>
          <dc:language>jpn</dc:language>
          <dc:type rdf:resource="http://purl.org/coar/resource_type/c_18gh">technical report</dc:type>
          <jpcoar:identifier identifierType="URI">https://ipsj.ixsq.nii.ac.jp/records/228904</jpcoar:identifier>
          <jpcoar:sourceIdentifier identifierType="ISSN">2188-8639</jpcoar:sourceIdentifier>
          <jpcoar:sourceIdentifier identifierType="NCID">AA11451459</jpcoar:sourceIdentifier>
          <jpcoar:sourceTitle>研究報告システムとLSIの設計技術（SLDM）</jpcoar:sourceTitle>
          <jpcoar:volume>2023-SLDM-204</jpcoar:volume>
          <jpcoar:issue>37</jpcoar:issue>
          <jpcoar:pageStart>1</jpcoar:pageStart>
          <jpcoar:pageEnd>5</jpcoar:pageEnd>
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