title: Evolution of the 3-dimensional video system for facial motion analysis: ten years' experiences and recent developments.
abstract: Since the implementation of the computer-aided system for assessing facial palsy in 1999 by Frey et al (Plast Reconstr Surg. 1999;104:2032-2039), no similar system that can make an objective, three-dimensional, quantitative analysis of facial movements has been marketed. This system has been in routine use since its launch, and it has proven to be reliable, clinically applicable, and therapeutically accurate. With the cooperation of international partners, more than 200 patients were analyzed. Recent developments in computer vision--mostly in the area of generative face models, applying active--appearance models (and extensions), optical flow, and video-tracking-have been successfully incorporated to automate the prototype system. Further market-ready development and a business partner will be needed to enable the production of this system to enhance clinical methodology in diagnostic and prognostic accuracy as a personalized therapy concept, leading to better results and higher quality of life for patients with impaired facial function.
authors: Division of Plastic and Reconstructive Surgery, Department of Surgery, Medical University of Vienna, Vienna, Austria. chieh-han.tzou@meduniwien.ac.at
authors: Chieh-Han John
authors: CH
authors: Tzou
authors: Igor
authors: I
authors: Pona
authors: Eva
authors: E
authors: Placheta
authors: Alina
authors: A
authors: Hold
authors: Maria
authors: M
authors: Michaelidou
authors: Nicole
authors: N
authors: Artner
authors: Walter
authors: W
authors: Kropatsch
authors: Hans
authors: H
authors: Gerber
authors: Manfred
authors: M
authors: Frey
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005158:Facial Paralysis / Q000175:diagnosis*; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D012985:Software Design; D014741:Video Recording / Q000379:methods*; D055815:Young Adult