TAILIEUCHUNG - báo cáo khoa học: " 3D digital stereophotogrammetry: a practical guide to facial image acquisition"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: 3D digital stereophotogrammetry: a practical guide to facial image acquisition | Heike et al. Head Face Medicine 2010 6 18 http content 6 1 18 HEAD FACE MEDICINE REVIEW Open Access 3D digital stereophotogrammetry a practical guide to facial image acquisition Carrie L Heike1 2 Kristen Upson3 Erik Stuhaug2 Seth M Weinberg4 Abstract The use of 3D surface imaging technology is becoming increasingly common in craniofacial clinics and research centers. Due to fast capture speeds and ease of use 3D digital stereophotogrammetry is quickly becoming the preferred facial surface imaging modality. These systems can serve as an unparalleled tool for craniofacial surgeons proving an objective digital archive of the patient s face without exposure to radiation. Acquiring consistent high-quality 3D facial captures requires planning and knowledge of the limitations of these devices. Currently there are few resources available to help new users of this technology with the challenges they will inevitably confront. To address this deficit this report will highlight a number of common issues that can interfere with the 3D capture process and offer practical solutions to optimize image quality. Introduction Methods that allow for the objective assessment of facial form are becoming increasingly important for research in dysmorphology genetics orthodontics and surgical disciplines among others 1-8 . Such methods also have the potential to enhance clinical care by facilitating surgical planning improving outcome assessment and aiding in syndrome delineation 8-13 . Non-contact 3D surface imaging systems are rapidly replacing traditional hands-on anthropometry as the preferred method for capturing quantitative information about the facial soft-tissues 14 15 . These systems offer a number of distinct advantages minimal invasiveness quick capture speeds often under one second and the ability to archive images for subsequent analyses 16 17 . In addition a number of independent studies have demonstrated a high degree of precision and accuracy across a

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