28 lines
1.6 KiB
Markdown
28 lines
1.6 KiB
Markdown
---
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id: facial-asymmetry
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title: Facial Asymmetry
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---
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Using facial landmark detection described in Section 5.1.1, an additional measurement that is made is that of facial asymmetry. Frame-wise and overall asymmetry in landmarks on the left vs. right side of the face is quantified and saved in the following raw and derived variables.
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## Raw Variables
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| Variable | Description |
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| ----------- | ----------- |
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| `fac_asymmaskmouth` | **Mouth asymmetry.** Frame-wise asymmetry in the mouth area. |
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| `fac_asymmaskeye` | **Eye asymmetry.** Frame-wise asymmetry in the eye area. |
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| `fac_asymmaskeyebrow` | **Eyebrow asymmetry.** Frame-wise asymmetry in the Eyebrow area. |
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| `fac_asymmaskcom` | **Overall asymmetry.** Frame-wise asymmetry across the face. |
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## Derived Variables
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| Variable | Description |
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| ----------- | ----------- |
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| `fac_asymmaskmouth_mean` | **Mouth asymmetry mean** across the video. |
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| `fac_asymmaskmouth_std` | **Mouth asymmetry standard deviation** across the video. |
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| `fac_asymmaskeye_mean` | **Eye asymmetry mean** across the video. |
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| `fac_asymmaskeye_std` | **Eye asymmetry standard deviation** across the video. |
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| `fac_asymmaskeyebrow_mean` | **Eyebrow asymmetry mean** across the video. |
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| `fac_asymmaskeyebrow_std` | **Eyebrow asymmetry standard deviation** across the video. |
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| `fac_asymmaskcom_mean` | **Overall asymmetry mean** across the video. |
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| `fac_asymmaskcom_std` | **Overall asymmetry standard deviation** across the video. | |