2018
Sexual dimorphism in human facial expressions by 3D surface processing
JANDOVÁ, Marie a Petra URBANOVÁZákladní údaje
Originální název
Sexual dimorphism in human facial expressions by 3D surface processing
Název česky
Sexual dimorphism in human facial expressions by 3D surface processing
Autoři
JANDOVÁ, Marie (203 Česká republika, domácí) a Petra URBANOVÁ (203 Česká republika, domácí)
Vydání
HOMO - Journal of Comparative Human Biology, Elsevier, 2018, 0018-442X
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Německo
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 0.780
Kód RIV
RIV/00216224:14310/18:00103136
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000442714800003
Klíčová slova česky
Grimaces; Facial mimicry; Stereophotogrammetry; Facial variability; FIDENTIS
Klíčová slova anglicky
Grimaces; Facial mimicry; Stereophotogrammetry; Facial variability; FIDENTIS
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 23. 4. 2024 11:22, Mgr. Michal Petr
V originále
Human face is a dynamic system where facial expressions can rapidly modify geometry of facial features. Facial expressions are believed to be universal across world populations, but only a few studies have explored whether grimacing is sexually dimorphic and if so to what extent. The present paper explores inter- and intra-individual variation of human facial expressions with respect to individual’s sex based on a set of neutral and expression-varying 3D facial scans. The study sample composed of 20 individuals (10 males and 10 females) for whom 120 scans featuring grimaces associated with disgust, surprise, “u” sound, smile and wide smile were collected by an optical scanner Vectra XT. In order to quantify the dissimilarity among 3D images, surface comparison approach based on aligned 3D meshes and closest point-to-point distances was carried out in Fidentis Analyst application. The study revealed that sexual dimorphism was indeed one of the factors which determined the extent and characteristics of facial deformations recorded for the studied expressions. In order to produce a grimace, males showed a tendency towards extending their facial movements while females were generally more restrained. Furthermore, the facial movements linked to the wide smile and “u” sound were revealed as the most extensive relative to the other expressions, while the smile and surprise were shown indistinguishable from the neutral face.
Česky
Human face is a dynamic system where facial expressions can rapidly modify geometry of facial features. Facial expressions are believed to be universal across world populations, but only a few studies have explored whether grimacing is sexually dimorphic and if so to what extent. The present paper explores inter- and intra-individual variation of human facial expressions with respect to individual’s sex based on a set of neutral and expression-varying 3D facial scans. The study sample composed of 20 individuals (10 males and 10 females) for whom 120 scans featuring grimaces associated with disgust, surprise, “u” sound, smile and wide smile were collected by an optical scanner Vectra XT. In order to quantify the dissimilarity among 3D images, surface comparison approach based on aligned 3D meshes and closest point-to-point distances was carried out in Fidentis Analyst application. The study revealed that sexual dimorphism was indeed one of the factors which determined the extent and characteristics of facial deformations recorded for the studied expressions. In order to produce a grimace, males showed a tendency towards extending their facial movements while females were generally more restrained. Furthermore, the facial movements linked to the wide smile and “u” sound were revealed as the most extensive relative to the other expressions, while the smile and surprise were shown indistinguishable from the neutral face.
Návaznosti
MUNI/A/0892/2015, interní kód MU |
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MUNI/A/0897/2016, interní kód MU |
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