Igbo lips: volume, shape and philtrum in 51 observed portraits
Igbo: overall lip volume Full in 71% of 51; upper-to-lower lip volume ratio Balanced (~1:1) in 51% of 51; cupid's bow morphology Soft / rounded in 100% of 51; philtrum definition Soft in 53% of 51; mouth width Balanced in 51% of 51.
Catalog portraits for Igbo are AI-generated adult subjects; the measurements on this page come from documented photographs of real people, not from these images.
Overall lip volume
n = 51 assessableCombined lip volume from a frontal view. Independent ethnic-correlated dimension; West African and African-diaspora populations average higher native lip volume than European populations, with substantial individual variation.
| Value | Share | n | |
|---|---|---|---|
| ModerateAverage volume; lips clearly visible with modest projection. | 29% | 15 | |
| FullPronounced volume; lips project substantially from the perioral plane. | 71% | 36 |
Vocabulary: Overall lip volume (lip_volume_qualitative)
Upper-to-lower lip volume ratio
n = 51 assessableRelative volume of the upper lip compared to the lower lip in frontal view.
| Value | Share | n | |
|---|---|---|---|
| Balanced (~1:1)Upper and lower lip of approximately equal volume. | 51% | 26 | |
| Lower dominant (natural ratio)Lower lip larger than upper, approximating the 1:1.6 aesthetic reference. | 49% | 25 |
Vocabulary: Upper-to-lower lip volume ratio (mallucci_branford_lip_ratio)
Cupid's bow morphology
n = 51 assessableShape of the upper-lip vermilion border at midline (Cupid's bow).
| Value | Share | n | |
|---|---|---|---|
| Soft / roundedGentle curves at the peaks; M-shape present but rounded. | 100% | 51 |
Vocabulary: Cupid's bow morphology (cupids_bow_qualitative)
Philtrum definition
n = 51 assessableShape and definition of the philtrum (the vertical groove between the nose and upper lip).
| Value | Share | n | |
|---|---|---|---|
| SoftSubtle column definition. | 53% | 27 | |
| Defined columnsClear philtral columns visible; well-demarcated central groove. | 43% | 22 | |
| Smooth / minimalPhiltrum nearly flat; columns not distinct. | 4% | 2 |
Vocabulary: Philtrum definition (philtrum_qualitative)
Mouth width
n = 51 assessableWidth of the mouth (cheilion to cheilion) relative to the inter-iris distance.
| Value | Share | n | |
|---|---|---|---|
| BalancedMouth width approximately equal to inter-iris distance (Farkas reference). | 51% | 26 | |
| WideMouth width substantially greater than inter-iris distance. | 49% | 25 |
Vocabulary: Mouth width (mouth_width_proportional)
Where these numbers come from
51 publicly documented portraits of notable Igbo people were assessed by a vision model against the full 22-vocabulary schema, one value per dimension. Values are what the photographs show, read by a model, not population measurements. Each table counts only portraits where the value could be assessed; covered, obscured and unclear portraits are reported separately.
Notable-people corpora skew older, so hair color over-represents gray and white, and image quality varies. Treat shares as a description of this sample.
These rows are not yet in the published catalog dataset, which currently carries the earlier single-row analysis; see the methodology. A family page exists only when at least 10 portraits carry an assessable value.