Systems and methods for specifying and formulating customized topical agents
Systems and methods for determining a customized cosmetic formulation. In one method, a user is guided to capture an image of a skin region with known lighting and color characteristics, and the image is processed to provide calibrated skin color information. A customized cosmetic formulation is automatically determined for the user based on the calibrated skin color information. In another method, a user is interactively guided through capture of one or more skin region images using a device having an image sensor. The skin region images are processed to provide calibrated skin color information, which is compared to a ground truth data set to identify a set of closest known values in the ground truth data set. A customized cosmetic formulation is automatically determined for the user based on the comparison.
1. A method comprising:
receiving an image of a marker having a known size, the image of the marker having been captured using a device having an image sensor;
calibrating a plurality of settings of the device based on the image of the marker;
receiving one or more images of a skin region having a plurality of surfaces, the one or more images of the skin region having been captured using the device; and
capturing an accurate color of the skin region by:
measuring a color of each of the surfaces of the skin region;
determining a surface reflectance of the skin region based on the measured surface colors; and
determining a surface color variation of the skin region based on the calibrated settings, the measured surface colors, and the surface reflectance of the skin region.
2. The method of claim 1 , wherein the plurality of surfaces comprise sub-regions of the skin region.
3. The method of claim 1 , wherein the device is selected from the group consisting of a mobile phone, a tablet, a digital camera, a webcam, smart glasses, a television, and a gaming console.
4. The method of claim 1 , wherein the marker comprises a known reflectance.
5. The method of claim 1 , wherein calibrating the settings of the device comprises directing a user to place the marker on a substantially white field.
6. The method of claim 5 , wherein calibrating the settings of the device further comprises setting, based on a captured image of the substantially white field, at least one of aperture, sensitivity, exposure time, and white balance of the device.
7. The method of claim 1 , wherein calibrating the settings of the device comprises setting a light associated with the device image sensor to a known brightness.
8. The method of claim 1 , wherein calibrating the settings of the device comprises interactively guiding a user to position the device image sensor at a specific distance from a surface of the marker.
9. The method of claim 8 , wherein calibrating the settings of the device further comprises, upon the positioning of the device image sensor at the specific distance from the surface of the marker, locking at least one of the settings of the device.
10. The method of claim 9 , wherein the settings of the device are selected from the group consisting of automatic exposure, automatic focus, and automatic white balance.
11. The method of claim 9 , wherein the locked settings of the device are applied while measuring the color of each of the surfaces of the skin region.
12. The method of claim 1 , wherein measuring a color of a particular surface of the skin region comprises directing a user to place the marker in proximity to the particular surface of the skin region.
13. The method of claim 1 , wherein measuring a color of a particular surface of the skin region comprises interactively guiding a user to position the device image sensor and the skin region relative to one another to match a calibration target.
14. The method of claim 13 , wherein the interactive guidance comprises voice direction.
15. The method of claim 1 , wherein measuring a color of a particular surface of the skin region comprises, upon a positioning of the device image sensor at a specific distance from the marker, capturing a color of the particular surface of the skin region.
16. The method of claim 15 , wherein determining the surface reflectance of the skin region comprises transforming the captured color to a surface reflectance of the skin region.
17. A system comprising:
at least one computer comprising a memory for storing computer-executable instructions and a processing unit for executing the instructions stored in the memory, wherein the execution of the instructions configures the computer to perform operations comprising:
receiving an image of a marker having a known size, the image of the marker having been captured using a device having an image sensor;
calibrating a plurality of settings of a device based on the image of the marker;
receiving one or more images of a skin region having a plurality of surfaces, the one or more images of the skin region having been captured using the device; and
capturing an accurate color of the skin region by:
measuring a color of each of the surfaces of the skin region;
determining a surface reflectance of the skin region based on the measured surface colors; and
determining a surface color variation of the skin region based on the calibrated settings, the measured surface colors, and the surface reflectance of the skin region.
18. The system of claim 17 , wherein the plurality of surfaces comprise sub-regions of the skin region.
19. The system of claim 17 , wherein the marker comprises a known reflectance.
20. The system of claim 17 , wherein calibrating the settings of the device comprises directing a user to place the marker on a substantially white field.
21. The system of claim 20 , wherein calibrating the settings of the device further comprises setting, based on a captured image of the substantially white field, at least one of aperture, sensitivity, exposure time, and white balance of the device.
22. The system of claim 17 , wherein calibrating the settings of the device comprises setting a light associated with the device image sensor to a known brightness.
23. The system of claim 17 , wherein calibrating the settings of the device comprises interactively guiding a user to position the device image sensor at a specific distance from a surface of the marker.
24. The system of claim 23 , wherein calibrating the settings of the device further comprises, upon the positioning of the device image sensor at the specific distance from the surface of the marker, locking at least one of the settings of the device.
25. The system of claim 24 , wherein the settings of the device are selected from the group consisting of automatic exposure, automatic focus, and automatic white balance.
26. The system of claim 24 , wherein the locked settings of the device are applied while measuring the color of each of the surfaces of the skin region.
27. The system of claim 17 , wherein measuring a color of a particular surface of the skin region comprises directing a user to place the marker in proximity to the particular surface of the skin region.
28. The system of claim 17 , wherein measuring a color of a particular surface of the skin region comprises interactively guiding a user to position the device image sensor and the skin region relative to one another to match a calibration target.
29. The system of claim 17 , wherein measuring a color of a particular surface of the skin region comprises, upon a positioning of the device image sensor at a specific distance from the marker, capturing a color of the particular surface of the skin region.
30. The system of claim 29 , wherein determining the surface reflectance of the skin region comprises transforming the captured color to a surface reflectance of the skin region.