Skin reflectance and oiliness measurement
AssigneeCanfield Scientific, Incorporated
InventorSachin V. Patwardhan
Life of this patent
Estimating the term…
Abstract
Apparatuses and methods are disclosed for generating a quantitative indication of the degree of oiliness of skin. In exemplary embodiments, a difference image generated from parallel- and a cross-polarized images of an area of skin is subjected to an intensity thresholding operation. An oiliness metric is generated based on the average intensity of those pixels whose intensities do not exceed the threshold, and/or on the average intensity of those pixels whose intensities exceed the threshold. An indication based on the metric is generated and output.
Claims20
A method comprising:
- obtaining a parallel-polarized image of a skin area;
- obtaining a cross-polarized image of the skin area;
- generating a difference image from the parallel and cross-polarized images;
- determining an oiliness metric using the difference image;
- and
- outputting an indication of the oiliness metric.
An apparatus comprising:
- a storage device configured to store instructions;
- and
- a processor configured to execute instructions stored in the storage device to:
- obtain a parallel-polarized image of a skin area;
- obtain a cross-polarized image of the skin area;
- generate a difference image from the parallel and cross-polarized images;
- determine an oiliness metric using the difference image;
- and
- output an indication of the oiliness metric.
Dependencies are inferred from the claim text.