Method and system for monitoring the skin color of a user
First Claim
1. A system for monitoring the skin color of a user, the system comprising:
- a light source configured to emit light to illuminate skin of the user;
a first controller configured to control at least one of a direction and a beam size of the light source to focus the light from the light source on a predefined part of the user;
a capturing device configured to capture at least one image of the user over a predetermined time period, the predetermined time period being determined by at least one of the direction and the beam size of the light emitted from the light source;
an obtaining device configured to obtain motion-related information of the user over the predetermined time period; and
one or more processors programmed to;
derive visual information from the at least one image on the basis of the motion-related information; and
determine the skin color on the basis of the visual information.
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Abstract
This invention relates to a method and a system for monitoring skin color of a user. The system comprises a capturing unit, an obtaining unit, a deriving unit and a determining unit. The capturing unit captures at least one image of the user over a predetermined time period, and the obtaining unit obtains motion-related information of the user over the predetermined time period. The deriving unit derives visual information from the at least one image on the basis of the motion-related information, and the determining unit determines the skin color on the basis of the derived visual information. In this way, the skin color of the user can be effectively monitored without exposing the user to strong environmental light.
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Citations
20 Claims
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1. A system for monitoring the skin color of a user, the system comprising:
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a light source configured to emit light to illuminate skin of the user; a first controller configured to control at least one of a direction and a beam size of the light source to focus the light from the light source on a predefined part of the user; a capturing device configured to capture at least one image of the user over a predetermined time period, the predetermined time period being determined by at least one of the direction and the beam size of the light emitted from the light source; an obtaining device configured to obtain motion-related information of the user over the predetermined time period; and one or more processors programmed to; derive visual information from the at least one image on the basis of the motion-related information; and determine the skin color on the basis of the visual information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of monitoring skin color of a user illuminated by a light source, the method comprising:
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with a first controller, controlling the direction and/or beam size of the light source to focus the light from the light source on a predefined part of the user; with a capturing device, capturing at least one image of the user over a predetermined time period, the predetermined time period being determined by at least one of the direction and the beam size of the light emitted from the light source; with an obtaining device, obtaining motion-related information of the user over the predetermined time period; with one or more processors, deriving visual information from the at least one image on the basis of the motion-related information; and with the one or more processors, determining the skin color on the basis of the visual information. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. An apparatus for monitoring skin color, the apparatus comprising:
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a light source configured to emit light to illuminate skin of a user; a first lighting controller configured to control the intensity of the emitted light by adjusting at least one of a direction and a beam size of the light source to focus the emitted light on a predefined part of the user; an optical camera configured to capture at least one image of at least a portion of the predefined part of the user over a predetermined time period, the predetermined time period being inversely proportional to the light intensity of the emitted light; an infrared camera configured to obtain motion-related information of the user over the predetermined time period; and at least one processor programmed to; derive visual information from the at least one image based on the obtained motion-related information to determine one or more distorted portions and one or more non-distorted portions in the at least one image that is captured by the optical camera caused by motion of the user; and determine the skin color based on the one or more non-distorted portions in the at least one image. - View Dependent Claims (17, 18, 19, 20)
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Specification