Tongue Part Movement Trajectories for /r/ Using Ultrasound.
Tongue Part Movement Trajectories for /r/ Using Ultrasound.
复制标题
使用超声波的 /r/ 舌头部分运动轨迹。
DOI：
10.1044/2019_pers-19-00064
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
Boyce,SuzanneE
中科院分区：
文献类型：
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作者：
Dugan,Sarah;Li,SarahR;Masterson,Jack;Woeste,Hannah;Mahalingam,Neeraja;Spencer,Caroline;Mast,TDouglas;Riley,MichaelA;Boyce,SuzanneE
目的由于超声生物反馈疗法可以实时显示舌头不同部位的运动，因此它是一种有前途的言语研究和矫正技术。一个限制是解释舌头运动的实时超声图像的困难。我们的图像处理系统TonguePART可跟踪舌面并获取定量的舌部轨迹。MethodTonguePART根据超声图像亮度自动识别舌头轮廓，并实时跟踪舌根、背部和舌片的运动。我们提供了 2 个在 /r/ 上有残余声音错误的儿童和 2 个有典型语音的儿童的舌部轨迹数据，重点关注语音上下文 /ɑr/ 中的 /r/（国际音标 ɹ）。我们将舌头轨迹与持续元音/ɑ/和/r/的磁共振图像进行了比较。结果测量的轨迹显示，与有残余语音障碍的儿童相比，在产生/ɑr/时有典型言语的儿童的舌头部分运动有更大的整体位移和更大的分化。结论TonguePART是一种快速、可靠的跟踪音节（如/ɑr/）舌头部分发音运动的方法。它可以扩展到其他声音和语音上下文。通过跟踪舌头部位，临床研究人员可以研究语言协调性。 TonguePART适合实时数据采集和生物反馈。超声生物反馈疗法的用户可以使用简化的舌头运动生物反馈取得更多进展。
PurposeBecause it shows the movement of different parts of the tongue in real time, ultrasound biofeedback therapy is a promising technology for speech research and remediation. One limitation is the difficulty of interpreting real-time ultrasound images of tongue motion. Our image processing system, TonguePART, tracks the tongue surface and allows for the acquisition of quantitative tongue part trajectories.MethodTonguePART automatically identifies the tongue contour based on ultrasound image brightness and tracks motion of the tongue root, dorsum, and blade in real time. We present tongue part trajectory data from 2 children with residual sound errors on /r/ and 2 children with typical speech, focusing on /r/ (International Phonetic Alphabet ɹ) in the phonetic context /ɑr/. We compared the tongue trajectories to magnetic resonance images of sustained vowel /ɑ/ and /r/.ResultsMeasured trajectories show larger overall displacement and greater differentiation of tongue part movements for children with typical speech during the production of /ɑr/, compared to children with residual speech sound disorders.ConclusionTonguePART is a fast, reliable method of tracking articulatory movement of tongue parts for syllables such as /ɑr/. It is extensible to other sounds and phonetic contexts. By tracking tongue parts, clinical researchers can investigate lingual coordination. TonguePART is suitable for real-time data collection and biofeedback. Ultrasound biofeedback therapy users may make more progress using simplified biofeedback of tongue movement.