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Three-dimensional methodology for photogrammetric acquisition of the soft tissues of the face: a new clinical-instrumental protocol.

Deli R, Galantucci LM, Laino A, D'Alessio R, Di Gioia E, Savastano C, Lavecchia F, Percoco G - Prog Orthod (2013)

Bottom Line: The analysis was carried out according to a new clinical-instrumental protocol that comprises four distinct phases: (1) setup of portable equipment in the space in which field analysis will be performed, (2) preparation of the subject and spatial positioning, (3) scanning of the subject with different facial expressions, and (4) treatment and processing of data.The protocol was tested on a sample comprising 66 female subjects (64 Caucasian, 1 Ethiopian, and 1 Brazilian) who were the finalists of an Italian national beauty contest in 2010.This standardization allows the mapping of the subjects to be carried out following the same conditions in a reliable and fast process for all of the subjects scanned.

View Article: PubMed Central - PubMed

Affiliation: Studio Associato di Odontoiatria dei Dottori Di Gioia, Bari 70122, Italy. eliana.digioia@teletu.it.

ABSTRACT

Background: The objective of this study is to define an acquisition protocol that is clear, precise, repeatable, simple, fast and that is useful for analysis of the anthropometric characteristics of the soft tissue of the face.

Methods: The analysis was carried out according to a new clinical-instrumental protocol that comprises four distinct phases: (1) setup of portable equipment in the space in which field analysis will be performed, (2) preparation of the subject and spatial positioning, (3) scanning of the subject with different facial expressions, and (4) treatment and processing of data. The protocol was tested on a sample comprising 66 female subjects (64 Caucasian, 1 Ethiopian, and 1 Brazilian) who were the finalists of an Italian national beauty contest in 2010. To illustrate the potential of the method, we report here the measurements and full analysis that were carried out on the facial model of one of the subjects who was scanned.

Results: This new protocol for the acquisition of faces is shown to be fast (phase 1, about 1 h; phase 2, about 1.5 min; phase 3, about 1.5 min; phase 4, about 15 min), simple (phases 1 to 3 requiring a short operator training period; only phase 4 requires expert operators), repeatable (with direct palpation of anatomical landmarks and marking of their positions on the face, the problem of identification of these same landmarks on the digital model is solved), reliable and precise (average precision of measurements, 0.5 to 0.6 mm over the entire surface of the face).

Conclusions: This standardization allows the mapping of the subjects to be carried out following the same conditions in a reliable and fast process for all of the subjects scanned.

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Related in: MedlinePlus

Measurements of the neoclassical canons of Miss TF.
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Fig9: Measurements of the neoclassical canons of Miss TF.

Mentions: From the analysis of the data obtained from the measurements taken on Miss TF (Figure 9), it is clear that the naso-aural, horizontal, and nose-mouth proportions of her face are very close to the neoclassical canons (Table 4). According to Farkas et al. [38], the orbito-nasal proportions of the lower third of her face, the naso-aural slope, and the proportions of the lower third of her face deviate slightly from the neoclassical canons. Then, according to Piero della Francesca and Durer reported in Farkas [38], the vertical and nose-facial proportions and those of the lower third of her face deviate substantially from the neoclassical canons.Figure 9


Three-dimensional methodology for photogrammetric acquisition of the soft tissues of the face: a new clinical-instrumental protocol.

Deli R, Galantucci LM, Laino A, D'Alessio R, Di Gioia E, Savastano C, Lavecchia F, Percoco G - Prog Orthod (2013)

Measurements of the neoclassical canons of Miss TF.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4384937&req=5

Fig9: Measurements of the neoclassical canons of Miss TF.
Mentions: From the analysis of the data obtained from the measurements taken on Miss TF (Figure 9), it is clear that the naso-aural, horizontal, and nose-mouth proportions of her face are very close to the neoclassical canons (Table 4). According to Farkas et al. [38], the orbito-nasal proportions of the lower third of her face, the naso-aural slope, and the proportions of the lower third of her face deviate slightly from the neoclassical canons. Then, according to Piero della Francesca and Durer reported in Farkas [38], the vertical and nose-facial proportions and those of the lower third of her face deviate substantially from the neoclassical canons.Figure 9

Bottom Line: The analysis was carried out according to a new clinical-instrumental protocol that comprises four distinct phases: (1) setup of portable equipment in the space in which field analysis will be performed, (2) preparation of the subject and spatial positioning, (3) scanning of the subject with different facial expressions, and (4) treatment and processing of data.The protocol was tested on a sample comprising 66 female subjects (64 Caucasian, 1 Ethiopian, and 1 Brazilian) who were the finalists of an Italian national beauty contest in 2010.This standardization allows the mapping of the subjects to be carried out following the same conditions in a reliable and fast process for all of the subjects scanned.

View Article: PubMed Central - PubMed

Affiliation: Studio Associato di Odontoiatria dei Dottori Di Gioia, Bari 70122, Italy. eliana.digioia@teletu.it.

ABSTRACT

Background: The objective of this study is to define an acquisition protocol that is clear, precise, repeatable, simple, fast and that is useful for analysis of the anthropometric characteristics of the soft tissue of the face.

Methods: The analysis was carried out according to a new clinical-instrumental protocol that comprises four distinct phases: (1) setup of portable equipment in the space in which field analysis will be performed, (2) preparation of the subject and spatial positioning, (3) scanning of the subject with different facial expressions, and (4) treatment and processing of data. The protocol was tested on a sample comprising 66 female subjects (64 Caucasian, 1 Ethiopian, and 1 Brazilian) who were the finalists of an Italian national beauty contest in 2010. To illustrate the potential of the method, we report here the measurements and full analysis that were carried out on the facial model of one of the subjects who was scanned.

Results: This new protocol for the acquisition of faces is shown to be fast (phase 1, about 1 h; phase 2, about 1.5 min; phase 3, about 1.5 min; phase 4, about 15 min), simple (phases 1 to 3 requiring a short operator training period; only phase 4 requires expert operators), repeatable (with direct palpation of anatomical landmarks and marking of their positions on the face, the problem of identification of these same landmarks on the digital model is solved), reliable and precise (average precision of measurements, 0.5 to 0.6 mm over the entire surface of the face).

Conclusions: This standardization allows the mapping of the subjects to be carried out following the same conditions in a reliable and fast process for all of the subjects scanned.

Show MeSH
Related in: MedlinePlus