Lighting, angle, makeup and other factors all affect how accurately real facial contours and tissue condition can be judged. The lighting-independent facial structure analysis feature relies on 3D geometric algorithms and a standardized color map to help observe how facial volume is distributed, turning “where is it hollow, where does it build up” from a subjective impression into an image that can be discussed.
Why a color map is needed
The same face shows different shadows under overhead light, side light or front light. If a consultation relies only on the lighting in the room and on photographs, shading caused by light is easily mistaken for a change in volume. 3D scanning fixes the geometry first, then applies color by a single rule, reducing the influence of external light.
Cool blue and red-orange: two opposite signals
Cool blue areas usually correspond to regions where facial tissue volume has decreased or where there is a hollow. Common causes include collagen loss and bone resorption: the face loses internal support and a structural hollow forms.
Red-orange warm areas usually correspond to soft-tissue accumulation or excess tissue, which may result from soft tissue sagging and pooling under gravity, or from localized tissue proliferation or edema; the contour line is therefore less smooth.
Where it fits in the assessment workflow
Lighting-independent facial structure analysis is a visual 3D facial assessment feature. It uses a standardized color map to help distinguish volume loss from soft-tissue descent, helps observe structural problems in deeper bone structure and soft tissue, and provides a visual, quantifiable reference for facial assessment.
It is usually used together with 3D facial measurement and contour analysis: first review proportion and angle with more than 60 facial metrics, then review volume distribution with the color map, and finally combine this with the consultation to identify the source of the problem. Note that the map is an aid to observation, not a diagnostic conclusion; the specific plan remains the physician's decision.
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