Systems and methods for determining a surface profile using a plurality of light sources
AssigneeBrighTex Bio-Photonics LLC
InventorsRajeshwar Chhibber, Ashutosh Chhibbar, Shefali Sharma
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Abstract
A method for determining a surface profile of subject's skin includes illuminating the subject with light from a plurality of light sources. The plurality of light sources having distinct colors is configured to illuminate the subject from distinct locations. A multi-color image of the subject is obtained. The multi-color image includes respective values corresponding to respective intensities of light of respective colors for each region of the subject. A surface profile of the subject is determined in accordance with the respective values corresponding to the respective intensities of light of the respective colors.
Claims16
A method, comprising:
- illuminating a subject with light from a plurality of light sources, the plurality of light sources having distinct colors and configured to illuminate the subject from distinct locations, wherein the plurality of light sources includes light sources of at least two distinct colors;
- obtaining a multi-color image of the subject, the multi-color image comprising respective values corresponding to respective intensities of light of respective colors for each region of the subject;
- and
- determining a surface profile of the subject in accordance with the respective values corresponding to the respective intensities of light of the respective colors, wherein determining the surface profile of the subject includes:
- segmenting a surface of the subject into a plurality of regions;
- and
- determining an orientation of each region of at least a subset of the plurality of regions, wherein determining the orientation of each region includes comparing a first intensity of light of a first color reflected from the region and a second intensity of light of a second color reflected from the region.
An optical system, comprising:
- a plurality of light sources for illuminating a subject, the plurality of light sources having distinct colors and configured to illuminate the subject from distinct locations, wherein the plurality of light sources includes light sources of at least two distinct colors;
- an optical image sensor used for obtaining a multi-color image of the subject, the multi-color image comprising respective values corresponding to respective intensities of light of respective colors for each region of the subject;
- one or more processors coupled with the optical image sensor;
- and
- memory storing one or more programs for execution by the one or more processors, the one or more programs including instructions for determining a surface profile of the subject in accordance with the respective values corresponding to the respective intensities of light of the respective colors, wherein determining the surface profile of the subject includes:
- segmenting a surface of the subject into a plurality of regions;
- and
- determining an orientation of each region of at least a subset of the plurality of regions, wherein determining the orientation of each region includes comparing a first intensity of light of a first color reflected from the region and a second intensity of light of a second color reflected from the region.
A non-transitory computer readable storage medium storing one or more programs for execution by one or more processors of a computer system, the one or more programs including instructions for:
- obtaining a multi-color image of a subject illuminated with a plurality of light sources that has distinct colors and is configured to illuminate the subject from distinct locations, wherein the plurality of light sources includes light sources of at least two distinct colors, the multi-color image comprising respective values corresponding to respective intensities of light of respective colors for each region of the subject;
- and
- determining a surface profile of the subject in accordance with the respective values corresponding to the respective intensities of light of the respective colors, wherein determining the surface profile of the subject includes:
- segmenting a surface of the subject into a plurality of regions;
- and
- determining an orientation of each region of at least a subset of the plurality of regions, wherein determining the orientation of each region includes comparing a first intensity of light of a first color reflected from the region and a second intensity of light of a second color reflected from the region.
Dependencies are inferred from the claim text.