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Updated: Oct 19, 2025
Video Movement Analysis Using Smartphones ViMAS: A Pilot Study
Published on: March 14, 2017
Evaluation of 3D Face-Scan images obtained by stereophotogrammetry and smartphone camera
Burçin Akan1, Ender Akan2, Ahmet Oğuz Şahan3
1Izmir Katip Celebi University, Faculty of Dentistry, Department of Orthodontics, Izmir, Turkey.
Objective:
The purpose of this study is to compare and analyze the similarities between three-dimensional images captured by a smartphone camera with depth sensors and a conventional 3dMD Face system.
Materials And Methods:
Twenty six individuals (16 female, 10 male) were involved in this study, agreed to take part and as such had no paralysis, tics, etc., which may prevent taking the image. Anthropometric points were marked, and plasters were placed on the forehead, upper nasal dorsum and zygoma to determine matching areas. 3D images were captured with a DOF (Depth of Field) camera of a smartphone (iPhone X, Apple Inc. CA, USA) and a 3D imaging system (3dMD, Atlanta, GA, USA). Linear and angular measurements were carried. Overlapping area amounts of matched images and X, Y and Z coordinates of landmarks were compared. For comparison of the data, student t-test and Mann-Whitney U test were used at P<0.05.
Results:
Statistically significant changes were found in distance between inner commissures of right and left eye fissure and nasolabial angle. RMS (Root Mean Square) values were found between 0.58 and 1.
Conclusion:
Images captured with a DOF camera of a smartphone, can be used to record and evaluate 3D soft tissue changes. However, due to the anatomical features of some regions, the deficiency of clear visualization needs improvements.
