距離画像センサを用いた日本語の指文字認識のための手領域自動抽出と指方向認識

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2015/11/01

タイトル(英語): Automatic Hand Region Extraction and Finger Direction Recognition with a Depth Image Sensor for Japanese Sign Language Recognition

著者名: 白石　孝弥（大阪府立大学知能情報工学科知的信号処理研究グループ），井上　勝文（大阪府立大学知能情報工学科知的信号処理研究グループ），吉岡　理文（大阪府立大学知能情報工学科知的信号処理研究グループ），柳本　豪一（大阪府立大学知能情報工学科知的信号処理研究グループ）

著者名(英語): Takami Shiraishi (Osaka Prefecture University), Katsufumi Inoue (Osaka Prefecture University), Michifumi Yoshioka (Osaka Prefecture University), Hidekazu Yanagimoto (Osaka Prefecture University)

キーワード: 日本語の指文字，手領域自動抽出，Time-Series Curve，指方向認識，距離画像センサ　　Japanese sign language，Automatic hand region detection，Time-Series Curve，Finger direction recognition，Depth image sensor

要約(英語): Hand sign recognition is one of most challenging tasks in some research area. In this research, we focus on JSL (Japanese sign language). Although many hand sign recognition methods with depth sensor have already been proposed and they have achieved high accuracy, they have a problem such as the requirement that signer wears a color belt on the gesturing hand to extract a hand region precisely. Therefore we consider that there is still a room of improving the HRE (hand region extraction). In this paper, we propose a new automatic HRE method using a depth sensor and Time-Series Curve, which is one of contour features. Additionally, in the conventional SVM-based methods, brute-force matching of hand signs is applied for achieving high recognition performance. However, this process is required long processing time. To solve this problem, we focus on the FD (finger direction) of JSL. In this paper, we propose a new FD recognition method for effectively restricting the number of target signs in the recognition process. From the experimental results with 8 subjects, we have achieved the similar HRE accuracy compared with the conventional method without wearing a color belt and 96.5% of recognition rate of FD.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.135 No.11 （2015） 特集：電気関係学会関西連合大会

本誌掲載ページ: 1328-1336 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/135/11/135_1328/_article/-char/ja/