What Is Orbital Vector in FaceIQ Labs' Harmony Analysis?
Orbital Vector is a side-view measurement in FaceIQ Labs' Harmony pillar. It gives the horizontal position of the lower orbital reference (orbitale) relative to the corneal apex, the front of the eye, in estimated millimeters. A negative value means orbitale sits behind the corneal apex; a positive value means it sits in front.
Key facts
- Orbital Vector is calculated as (Orbitale x − corneal-apex x) × photo scale, in an oriented side image.
- A negative value means the orbital reference lies behind the corneal apex; a positive value means it lies in front of it.
- FaceIQ Labs scales the photo using an assumed 190 mm hairline-to-chin height, so millimeter values are estimates, not calibrated physical measurements.
- FaceIQ Labs describes Orbital Vector as its own photographic construction; the cited Farkas et al. (2005) study does not validate this exact landmark formula or its scoring range.
- Orbital Vector is a side-view measurement within the Harmony pillar, which compares 70+ facial ratios and angles to ideal ranges adjusted for gender and ethnicity.
- Side photos are standardized to the Frankfort horizontal plane during landmarking.
- A photo landmark is not a scan of the orbital bone and does not determine eye health or structural support.
What does Orbital Vector measure?
Orbital Vector is a FaceIQ Labs Harmony measurement taken from a side-view photo. It describes the horizontal position of the lower orbital reference (orbitale) relative to the front of the eye, the corneal apex. It is one of the 70+ facial ratios and angles FaceIQ Labs measures under its Harmony pillar, and it is filed under side view and facial profile.
How does FaceIQ Labs calculate Orbital Vector?
FaceIQ Labs calculates Orbital Vector as (Orbitale x − corneal-apex x) × photo scale, using an oriented side image. It compares the horizontal positions of two landmarks, the lower orbital reference and the corneal apex, and the sign of the result shows which sits further forward. The guide's schematic labels these A, the corneal vertical reference, and B, the horizontal orbital offset.
What do positive and negative Orbital Vector values mean?
- Negative: in FaceIQ Labs' Orbital Vector measurement, the orbital reference lies behind the corneal apex.
- Positive: the orbital reference lies in front of the corneal apex.
- The sign convention describes FaceIQ Labs' result. The guide states its example values are not a target range.
Why does FaceIQ Labs measure Orbital Vector?
FaceIQ Labs measures Orbital Vector because it describes the eye's relationship to the contour below it. According to the FaceIQ Labs guide, a forward lower-orbital reference and a forward eyeball can produce different under-eye profiles even when eyelid shape is similar.
Where does the Orbital Vector formula come from?
FaceIQ Labs describes Orbital Vector as a FaceIQ photographic construction, an adaptation. Clinical profile analysis provides context, but the cited work, Farkas et al. (2005), an international anthropometric study of facial morphology in various ethnic groups, documents variation in facial dimensions. It does not validate this exact landmark formula or its scoring range. FaceIQ Labs says its score weights and reference ranges are model settings.
How accurate are the Orbital Vector millimeter values?
FaceIQ Labs' Orbital Vector millimeter values are approximate. FaceIQ Labs scales the photo using an assumed 190 mm hairline-to-chin height, so the values are estimates rather than calibrated physical measurements. A photo landmark is also not a scan of the orbital bone and does not determine eye health or structural support.
What is an example of an Orbital Vector calculation?
FaceIQ Labs gives a worked example: if the orbital reference is 5 units behind the eye at 0.2 estimated mm per unit, the Orbital Vector result is −1 mm. The guide states that example values only explain the calculation, are not a target range, and are not measurements of its schematic.
Frequently asked questions
Does Orbital Vector diagnose eye health?
No. FaceIQ Labs states that a photo landmark is not a scan of the orbital bone and does not determine eye health or structural support.
Which photo does FaceIQ Labs use for Orbital Vector?
It uses a side-view photo, an oriented side image. FaceIQ Labs standardizes side photos to the Frankfort horizontal plane during landmarking.
Is the Orbital Vector formula validated by research?
No. FaceIQ Labs calls it its own photographic construction. The cited Farkas et al. (2005) study provides context on facial dimension variation but does not validate this exact formula or its scoring range.
What is the ideal Orbital Vector range?
The material gives no target range. FaceIQ Labs notes its worked example values are not a target range, and its reference ranges are model settings that the cited papers do not validate.
Is the Orbital Vector in millimeters exact?
No. FaceIQ Labs scales photos using an assumed 190 mm hairline-to-chin height, so the millimeter values are estimates, not calibrated physical measurements.