@techreport{oai:ipsj.ixsq.nii.ac.jp:00079361,
 author = {池田, 大輔 and 桂田, 浩一 and 入部, 百合絵 and 新田, 恒雄 and Daisuke, Ikeda and Kouichi, Katsurada and Yurie, Iribe and Tsuneo, Nitta},
 issue = {18},
 month = {Dec},
 note = {読話とは口の動きや形状を読み取り発話内容を理解することである．従来の読話の研究の多くは口唇領域に対して行われてきた．しかし，発話する音によっては口の動作が大きく周辺の皺や顎の形状の変化が大きい音や，口の動作が小さい音がある．そこで本論文では (A) 顔全体，(B) 口周辺，(C) 口唇領域の 3 つの領域を用いて単語認識，母音・子音認識を行った．実験の結果，母音の認識は顔全体領域が最も高い性能を示し，一方で子音の/r/や/s/は口唇領域が最も高い値を示すことが分かった．, Lipreading is the technique to recognize speaker 's utterances from the motion with changing shape of the mouth. Although most of previous approaches to lipreading focus on the limited region of the mouth, utterances of some phonemes often accompanying with the motion of surrounding areas together with the mouth. We have compared three regions, (A) entire face region, (B) mouth and adjacent region, and (C) mouth region, based on these facts. Experimental results of word recognition and vowel/consonant recognition show that vowel recognition using the entire face region results in the highest performance, while the mouth region outputs the best performance for recognizing consonants ‘s’ and ‘r’.},
 title = {顔領域の違いによる読話認識性能比較},
 year = {2011}
}