The virtual human face: Superimposing the simultaneously captured 3D photorealistic skin surface of the face on the untextured skin image of the CBCT scan

Naudi, Kurt; Benramadan, R.; Brocklebank, Laetitia; Ju, Xiangyang; Khambay, Balvinder; Ayoub, Ashraf

doi:10.1016/j.ijom.2012.10.032

Cited by 51 publications

(38 citation statements)

References 19 publications

(23 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The system used in this study enables the overlay of images captured from the individual with the image obtained by means of computed tomography and, thus increasing the accuracy of images and measurements. Naudi et al 14 and Schendel et al 15 verified this hypothesis and confirmed the great applicability of 3D imaging, as well as their superposition. This new method is promising, in that it can assist with more accuracy the planning of surgical treatments.…”

Section: Go-gn (D) Go-t (D) Sum Go-gn (E) Go-t (E) Summentioning

confidence: 75%

See 1 more Smart Citation

3D stereophotogrammetry facial analysis of Angle I subjects: gender comparison

Silva

Magri

Júnior

et al. 2015

Rev. odontol. UNESP

View full text Add to dashboard Cite

Objective The aim of this study was to establish reference parameters for facial analysis in subjects with Angle’s Class I occlusion by means of stereophotogrammetry, comparing men and women. Material and method Twenty-six healthy young adults with Angle’s Class I occlusion volunteered to participate in the study, 15 males and 11 females, ages between 18 and 30 years old (22 years ± 5). These subjects were clinically examined to verify their type of occlusion. Twenty-five landmarks were performed in soft tissue, and those subjects underwent image capturing by the stereophotogrammetry technique, using the apparatus Vectra (M3-Canfield®). The following variables were measured in those images: naso-labial angle (C-Sn-Ls); (N-Prn-Pg); (N-Sn-Pg); mentolabial (Li-Ps-Pg); growth angle (T-Go-Pg), cheek area (T, Zy, Chk, Ch, Gn, Go), hemifaces' areas (T, Zy, Ft, Tr, N, Prn, C, Sn, Ls, Sto, Li Ps, Gn, Go), lip area, bilaterally (Ls, Cph, Ch, Li, Sto), and linear measurements of the lips and jaw. Result and conclusion The data were compared between genders (Student's t-test), and no statistically significant differences between groups (p>0.05) were found. Despite the limitations of this study, it is possible to conclude that, as there were no differences between men and women for the studied variables (angular, linear, and area), the data of the total sample (Class I) should be used as reference parameters in future studies. Additionally, the 3D stereophotogrammetry technique has proven to be a new possibility for facial analysis, which might be employed in several areas of dentistry.

show abstract

Section: Go-gn (D) Go-t (D) Sum Go-gn (E) Go-t (E) Summentioning

confidence: 75%

“…These images allow modifications that facilitate preoperative planning, and a "vision" of post-operative patients. Thus, it allows great applicability, especially in Dentistry as in cases of orthognathic surgery 14,15,[19][20][21][22][23] .…”

Section: Go-gn (D) Go-t (D) Sum Go-gn (E) Go-t (E) Summentioning

confidence: 99%

3D stereophotogrammetry facial analysis of Angle I subjects: gender comparison

Silva

Magri

Júnior

et al. 2015

Rev. odontol. UNESP

View full text Add to dashboard Cite

show abstract

“…A set up describing the simultaneous capture of a 3D photorealistic skin surface of the face on the untextured skin image of the CBCT Scan has recently been described (Naudi et al, 2013) Amongst the first clinical applications of CBCT were angiography, single photon emission computerised tomography (SPECT) and image guided radiotherapy (Robb, 1982;De Vos et al, 2009). Dedicated CBCT scanners for the oral and maxillofacial region weren't pioneered until the 1990's (Arai et al, 1999;Mozzo et al, 1998).…”

Section: Cone Beam Computed Tomography (Cbct)mentioning

confidence: 99%

“…It has been demonstrated that where both soft tissue and hard tissue 3D imaging is taken simultaneously albeit with different 3D imaging modalities it results in a more accurate registration, however a small error still remains between the registered images (Naudi et al, 2013). …”

Section: Registration Of 3d Imagesmentioning

confidence: 99%

“…Stereophotogrammetric images and CBCT images obtained independently one after the other, show registration errors which are reasonably large in the regions lateral to the neck, mouth and around the eyes, with approximately 90% of the total registration error located in these anatomical areas (Maal et al, 2008). A way of overcoming these problems is to have the simultaneous acquisition of CBCT and 3D photographs, which has been experimentally shown to reduce the registration error but unfortunately not eliminate it entirely (Naudi et al, 2013).…”

Section: Registering 3d Imagesmentioning

confidence: 99%

See 1 more Smart Citation

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

Ullah

Turner

Khambay

2014

British Journal of Oral and Maxillofacial Surgery

View full text Add to dashboard Cite

Objectives:To determine the validity of 3dMD Vultus in predicting soft tissue morphology following orthognathic surgery. Methods:Thirteen patients with a skeletal discrepancy that required surgical correction limited to a Le Fort I surgical advancement osteotomy were included within the study. These patients had previously undergone a CBCT scan immediately before surgery (T1) and 6 months after surgery (T2).To permit validation, hard and soft tissues were linked for each time point and the hard tissues superimposed on the cranial vault and base. Using 3dMD Vultus virtual surgery was carried out to position the mandible and maxilla at T1 to the post-surgical position at T2. The resulting 3D soft tissue prediction mesh was then compared to the actual soft tissue mesh at T2 by segmenting both meshes at distinct anatomically areas of the face. The absolute distance between meshes for each region was then calculated using a custom developed computer program.

show abstract