Accuracy of Photogrammetric Three-Dimensional Facial Models Reconstruction Compared With Direct Anthropometry

Al-Azhar University50 enrolled

Overview

Accuracy of Two Different Photogrammetric Software for Three Dimensional Facial Model Reconstructions Compared with Direct Facial Anthropometry.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Dental Malocclusion Diagnosis Facial Asymmetry

Eligibility

Sex: ALLMin age: 18 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Participants aged 18 or older Exclusion Criteria: * Presence of: 1. Extensive facial hair (beards). 2. Significant facial defects. 3. Surgical scars. 4. Neuromuscular disorders that may hinder stability of head during image acquisition. 5. Accessories that could interfere with image acquisition.

Locations (1)

Faculty of Dental Medicine, Al-Azhar University

Asyut, Egypt

Outcomes

Primary Outcomes

Accuracy of Photogrammetry in Generating 3D Facial Models - Linear Measurements

* A 3D model was generated for each volunteer using photogrammetry software. Anthropometric linear measurements was taken using a digital caliper, and photogrammetric linear measurements was extracted from the 3D model. * Two LEGO® blocks with uniform dimensions were attached to the participants' faces to scale the 3D model to actual metric dimensions. Unit of Measure: millimeters(mm)

Time frame: Baseline (procedure)

Accuracy of Photogrammetry in Generating 3D Facial Models - Angular Measurements

* This outcome measure focuses on the accuracy of photogrammetry in capturing and reproducing angular measurements of facial features. * Volunteers' 3D facial models were generated using photogrammetry software from multiple photos. * Two LEGO® blocks with uniform dimensions were attached to the forehead and cheek for scaling and reference. Angular measurements, based on these blocks, were extracted from the 3D model. The measurements were compared to validate the method's precision in reproducing angular dimensions. Unit of Measure: Degrees (°)

Time frame: Baseline (procedure)

Data from ClinicalTrials.gov

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