3D digital stereophotogrammetry: a practical guide to facial image acquisition

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.

The Face of Sleepiness: Improvement in Appearance after Treatment of Sleep Apnea

“…6 This technique has a high degree of precision and accuracy, though methodologic precautions must be followed to maximize image quality. 7 We recruited subjectively sleepy adult patients who were diagnosed with obstructive sleep apnea (OSA). 8 This was an ideal initial disease model because subjects could be tested before and after alleviation of severe sleepiness by home use of positive airway pressure.…”

Uso da estereofotogrametria nas deformidades craniofaciais: revisão sistemática

“…Furthermore, the 3 studies that used the system to capture three-dimensional cranial images (Cranial 3dMD ® ) are included among these 7 articles 7,8.10 . This increase in the number of published papers can be attributed to the effectiveness of the disclosure system and its advantages over the conventional technologies 4,5,11 . Furthermore, because the system has restricted portability 3 and high cost 3,11 , it is understandable that there is a delay from its launch to its application in routine medical practice, as a result of certain factors that require time, such as technology validation, capture of funds, importation, and familiarity with its use.…”

“…One of the ways to improve the process described is the development of three-dimensional digital models of facial morphology 2 . Systems with several different approaches were designed to generate a three-dimensional surface, and digital stereophotogrammetry is a method with a high clinical applicability reported 4,5 . This technique consists in acquiring a three-dimensional image from 1 or more pairs of stereophotographs, with the term "photogrammetry" being related to the possibility of conducting measurements by using threedi mensional pictures 6 , and if associated with the CT scan of the patient, using the structure of the underlying bone 4 .…”

The Validity of 3dMD Vultus in Predicting Soft Tissue Morphology Following Orthognathic Surgery

“…These systems can serve as an extremely valuable tool for surgeons, providing a 3D image of the patient's facial morphology, without the patient being exposed to radiation, while simultaneously being archived for future analysis (Aldridge et al, 2005;Heike et al, 2010). …”

“…Stereophotogrammetry is a technological advancement of the photogrammtery technique and uses two or more cameras configured as a stereo pair to obtain a 3D image of facial morphology (Heike et al, 2010).…”