Abstract
The neoclassical canon proportions for face evaluation were defined by artists and anatomists in the 17th and 18th centuries. These proportions are used as a reference for planning facial or dental reconstruction treatments. However, the vertical canon assumption that the face is divided vertically into three equal thirds, which was adopted a long time ago, has not been verified yet. We used 2D photos freely available online and annotated them with anthropometric landmarks using machine learning to verify this hypothesis. Our results indicate that the vertical dimensions of the face are not always divided into equal thirds. Thus, this vertical canon should be used with caution in cosmetic, plastic, or dental surgeries, and reconstruction procedures. In addition, when working with 2D images, we observed that landmarking 2D images can be inaccurate due to pose sensitivity. To address this problem we proposed the use of 3D face landmarking. Our results indicate that regardless of the 3D face scan pose, we were able to annotate the face scans with close to accurate landmarks.
The first two authors, Ashwinee Mehta and Richard Bi, contributed equally to this article.
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This work was supported in part by NSF REU grant #2050883.
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Mehta, A., Bi, R., Moamen, S., Abdelaal, M., Herndon, N. (2023). Automatic Detection of Facial Landmarks for Denture Models. In: Cuzzocrea, A., Gusikhin, O., Hammoudi, S., Quix, C. (eds) Data Management Technologies and Applications. DATA DATA 2022 2021. Communications in Computer and Information Science, vol 1860. Springer, Cham. https://doi.org/10.1007/978-3-031-37890-4_6
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