Comparative Analysis of Vowel Articulation Movements in Real-time MRI Movies using a Detection Method

カテゴリ: 部門大会

論文No: SS3-5

グループ名: 【C】2023年電気学会電子・情報・システム部門大会

発行日: 2023/08/23

タイトル(英語): Comparative Analysis of Vowel Articulation Movements in Real-time MRI Movies using a Detection Method

著者名: 大浦 杏奈（早稲田大学）,菊池 英明（早稲田大学）

著者名(英語): Anna Oura (Waseda University),Hideaki Kikuchi (Waseda University)

キーワード: オプティカルフロー|real-time MRI|調音運動|画像処理|optical flow|real-time MRI|articulation movement|image processing

要約(日本語): In our previous study, we proposed a method for detecting and displaying articulation movements in real-time Magnetic Resonance Imaging (rtMRI) movies using optical flow. However, this method was only evaluated on rtMRI movies of single-mora /ra/ vocalizations, which was insufficient to fully demonstrate its effectiveness. Therefore, in this study, we aimed to evaluate the method by comparing its output results for different vowels. Specifically, we applied the method to rtMRI movies of monophthongs that contain the /r/ consonant, and observed distinct optical flow patterns for each vowel, suggesting differences in tongue movement for each vowel. Our findings not only provide further evidence of the effectiveness of the proposed method but also highlight some new challenges.