title: Production of a range image for facial motion analysis: a method for analyzing lip motion.
abstract: To analyze the lip movement of patients with cleft lip and palate in detail, we developed a novel technique to produce a range image from a video-based motion capture system, and a unique technique to analyze lip movements in detail three-dimensionally. The accuracy of the range image obtained from the present system was investigated using a positioning actuator with a high accuracy and a known object, and by comparisons with the range images produced from a laser scanner with a cast model of a face. The lip motions of six healthy adults during phonation was analyzed.
authors.affiliation: Department of Oral and Maxillofacial Reconstructive Surgery, Graduate School of Medicine and Dentistry, Okayama University, 2-5-1 Shikata-cho, Okayama 700-8525, Japan. kmishima@md.okayama-u.ac.jp
authors.forename: Katsuaki
authors.initials: K
authors.lastname: Mishima
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Yamada
authors.forename: Asuka
authors.initials: A
authors.lastname: Ohura
authors.forename: Toshio
authors.initials: T
authors.lastname: Sugahara
mesh_terms: D000328:Adult; D002971:Cleft Lip; D002972:Cleft Palate; D005149:Facial Expression; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional; D007564:Japan; D008046:Lip / Q000502:physiology*; D008297:Male; D009068:Movement