RECOGNITION OF CLINICAL PROCESS IN DENTAL VIRTUAL REALITY ENVIRONMENT USING DYNAMIC TIME WARPING
Clinical training is one of the most challenging areas in dentistry. A facilitating learning environment has emerged in recent years through the maturation of research in artificial intelligence and haptic virtual reality techniques. Recognizing clinical process to find the expert’s performance that best matches with the novice’s performance is essential for developing intelligent haptic guidance in dental skill acquisition. The aim of the present study was to determine the potential of Dynamic Time Warping (DTW), a technique originally developed for pattern recognition in handwriting, in matching novices’ tooth cutting sequences with those of experts’ sequences. Forty fourth-year dental students and four expert dentists were enrolled in this study. Their task was to perform access opening to the root canals with a haptic virtual reality simulator developed by our group. Four experts performed access opening to the root canals in different manners yielding 4 groups that differed widely as to the tooth preparation sequence. Forty students were randomly allocated into 4 groups. Students in group 1, 2, 3 and 4 were trained to perform access opening to the root canals following expert1, expert2, expert3, and expert4 respectively. The DTW was performed between each student’s sequence and all the expert sequences in the database. Expert sequence which generated least cost with the given novice sequence was the best matching expert. Overall, the accuracy of the matching between students and experts was high (95%). The current results suggested that the DTW is a valid and objective technique to find the best matching expert for the student so that feedback based on that expert’s performance can be given to the novice in clinical skill training.
Recognition, artificial intelligence,dynamic time warping, virtual reality, haptic, dentistry
Siriwan Suebnukarn Peter Haddawy Phattanapon Rhienmora
Thammasat University, Faculty of Dentistry, Thailand United Nations University, International Institute for Software Technology, Macao United Nations University, International Institute for Software Technology, Macao;Asian Institute of
国际会议
The 7th Asia Pacific Association for Medical Informatics Conference(第七届亚太医药信息学大会(APAMI2012))
北京
英文
1-6
2012-10-24（万方平台首次上网日期，不代表论文的发表时间）