What Is Nasal Projection in FaceIQ Labs' Harmony Analysis?
Nasal Projection in FaceIQ Labs' Harmony analysis is a side-view ratio: the horizontal distance from the subalare (nasal wing base) to the nose tip, divided by the length from the tip to an extended dorsal line. A lower value means less forward tip reach relative to that length; a higher value means more.
Key facts
- Nasal Projection = horizontal subalare-to-tip projection รท tip-to-extended-dorsum length.
- It is a side-view Harmony measurement in the nose region, listed among FaceIQ Labs' Harmony measurement guides.
- FaceIQ Labs extends the tip-to-rhinion direction to nasal-root height to build the denominator.
- The denominator follows an extended dorsal line; it should not be replaced with vertical nose height or an unverified published formula.
- Worked example: a 30-unit horizontal projection divided by a 50-unit constructed length gives 0.60. Example values are not a target range.
- Lower means less forward tip reach relative to the constructed length; higher means more.
- Projection and rotation describe different aspects of the nose tip.
- FaceIQ Labs side photos are standardized to the Frankfort horizontal plane during landmarking.
- FaceIQ Labs' score weights and reference ranges are model settings; the cited research does not collectively validate the scoring system.
- The guide cites Tavakoli et al. (2023), in which 203 volunteers rated edited nose features on one male and one female model.
How does FaceIQ Labs calculate Nasal Projection?
FaceIQ Labs calculates Nasal Projection by dividing horizontal subalare-to-tip projection by tip-to-extended-dorsum length. The numerator is how far the nose tip extends in front of the nasal wing. The denominator is a constructed length along the tip-to-rhinion direction extended to nasal-root height. Worked example: 30 units divided by 50 units equals 0.60.
Why does Nasal Projection matter in FaceIQ Labs' Harmony analysis?
Nasal Projection matters in FaceIQ Labs' Harmony analysis because scaling tip projection by nose length separates a long nose with proportional reach from a short nose with the same forward reach. Projection and rotation describe different aspects of the tip. Lower values mean less forward reach relative to constructed length; higher values mean more.
How should I read a Nasal Projection result?
A FaceIQ Labs Nasal Projection result is a ratio of forward tip reach to constructed nose length. The guide's 0.60 example only explains the arithmetic; it is not a target range and not a measurement of the guide's schematic. The denominator follows an extended dorsal line, so do not substitute vertical nose height or an unverified published formula.
Where does the Nasal Projection measurement come from?
FaceIQ Labs adapts Nasal Projection from projection-to-length ratios used in rhinoplasty assessment. Its denominator extends the tip-to-rhinion direction to nasal-root height, and the guide says this construction is not interchangeable with every clinical projection method. The company states its score weights and reference ranges are model settings, not validated by the cited papers.
What research does FaceIQ Labs cite for Nasal Projection?
FaceIQ Labs cites one source for Nasal Projection: Tavakoli et al. (2023), "Ideal Nasal Preferences: A Quantitative Investigation with 3D Imaging in the Iranian Population." It asked 203 volunteers to rate edited nose features on one male and one female model. It supports studying angles and projection together, with limits from the sampled faces and raters.
What terms do I need to read FaceIQ Labs' Nasal Projection guide?
In FaceIQ Labs' Harmony guides, nasion means the nasal root, subnasale the nose base, and pogonion the most forward chin point. Frankfort refers to the direction from the ear-opening landmark to the lower orbital landmark. FaceIQ Labs standardizes side photos to the Frankfort horizontal plane during landmarking.
Which other nose measurements are in FaceIQ Labs' Harmony guides?
- Nasal Tip Angle
- Nose Tip Rotation Angle
- Nasolabial Angle
- Nasofacial Angle
- Nasomental Angle
- Nasal Width-to-Height Ratio
- Frankfort-tip Angle
Frequently asked questions
Is a higher Nasal Projection ratio better?
FaceIQ Labs' guide does not say higher or lower is better. It says a lower ratio means less forward tip reach relative to the constructed length and a higher ratio means more.
Is Nasal Projection the same as nose tip rotation?
No. FaceIQ Labs says projection and rotation describe different aspects of the nose tip. Projection is forward reach relative to constructed nose length; rotation has its own guide, Nose Tip Rotation Angle.
Which photo is Nasal Projection measured from?
It is a side-view measurement. FaceIQ Labs standardizes side photos to the Frankfort horizontal plane during landmarking.
Does the Tavakoli et al. 2023 study validate FaceIQ Labs' scoring?
No. FaceIQ Labs states that its score weights and reference ranges are model settings, and the listed papers explain history or related evidence without collectively validating the scoring system.
Can I use vertical nose height as the denominator?
No. FaceIQ Labs says the denominator follows an extended dorsal line and should not be replaced with vertical nose height or an unverified published formula.