電気学会論文誌C(電子・情報・システム部門誌)
Online ISSN : 1348-8155
Print ISSN : 0385-4221
ISSN-L : 0385-4221
<音声画像処理・認識>
RGB-Dカメラに基づく連続表現された日本語の指文字のスポッティング解析
井上 勝文白石 孝弥松岡 遼吉岡 理文
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ジャーナル 認証あり

2018 年 138 巻 10 号 p. 1230-1241

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Finger-spelled sign language recognition is one of hand sign recognition tasks and one of most challenging ones in some research area such as computer vision and human computer interaction. In this research, we especially focus on JFSL (Japanese Finger-spelled Sign Language). To realize a practical system for automatic finger-spelled sign recognition, we need to analyze the sequentially represented signs in real-time with some complex processes such as the recognition of signs one by one, word recognition, morphological and sentence analyses, etc. Although many finger-spelled sign language recognition researches have already been existed, they mainly focus on the one-by-one sign recognition and discuss the analysis of sequentially represented signs insufficiently. Therefore, compared with them, we focus on the spotting system of sequentially represented signs to move the next step of one-by-one sign recognition. In this paper, we propose a new spotting techniques for JFSL with SVM and rule-based approaches, which are based on moving direction of hand and finger directions before and after hand movement. From the experimental results, we achieved the 81% of average division rate for division of sequentially represented signs into one-by-one signs.

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