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Quantifying Facial Distortion in Modern Digital Photography
Adeeb Derakhshan1,2, Shekhar K Gadkaree2,3, Eric R Barbarite2,4
1Department of Otolaryngology Head and Neck Surgery, Division of Facial Plastic and Reconstructive Surgery, Loma Linda University, Loma Linda, California, U.S.A.
The Laryngoscope
|August 6, 2023
Summary
Close-up photos taken with smartphones or DSLR cameras cause facial distortion. Maintaining a greater distance minimizes midfacial feature distortion in clinical photography.
Area of Science:
- Medical imaging
- Facial plastic surgery
- Photographic science
Background:
- Digital camera and smartphone advancements increase clinical photography's role in facial plastic surgery.
- Understanding photographic parameters is crucial for accurate facial feature representation.
Purpose of the Study:
- To analyze the impact of camera type, focal length, and shooting distance on facial distortion.
- To identify optimal photographic settings for minimizing distortion in clinical facial imaging.
Main Methods:
- Frontal photographs of 12 subjects were taken with smartphone and full-frame DSLR cameras.
- Images were captured at various distances and focal lengths, with full-frame 60-inch photos serving as the gold standard.
- Facial landmarks were measured to quantify distortion.
Main Results:
- Significant midfacial vertical stretching (12%-19%) occurred with short focal lengths (24-50mm) at close distances (8 inches) using the DSLR camera.
- Smartphone cameras at 8 and 12 inches also caused notable distortion (18% and 12%, respectively).
Conclusions:
- Both smartphone and DSLR cameras produce midfacial distortion at close, 'selfie' distances.
- Minimizing camera-to-subject distance is critical to avoid distorting facial features in clinical photography.
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