Cosmetic method in which: a) a color is acquired from a region of the body of an individual, by using a device equipped with a color camera and by placing a color reference chart in the field of said camera during the acquisition; and b) using the device, and the color acquired in a), and optionally knowledge of the tanning pathways of various skin colors, at least one indication is delivered concerning skin type and/or at least one indication is delivered concerning at least one skin color obtainable by the individual via the pigmentation or depigmentation process and/or at least one indication is delivered concerning photoprotection and/or application or administration of a product intended to temporarily modify the color of the skin.

The disclosure provides a device for measuring serum bilirubin levels and uses thereof. The device includes a plate including a surface comprising: a stepwise gradient of colors; a lighting indicator; and a series of windows in the surface, each window in the series bordered by one of the colors, and each window including a transparent portion in the plate.

A device for measuring roughness and shine of hair, comprising a) a first area comprising an ascending gradient of shine, and b) a second area comprising an ascending gradient of roughness, wherein the first area is aligned to the second area, and wherein the ascending gradient of shine and the ascending gradient of texture are inverse to each other, and wherein the roughness is provided by a textured pattern which is textured to mimic hair.

A wearable device may be provided for detecting cumulative alcohol consumption. Such a wearable device may include an adhesive layer that adheres to skin and that allows sweat from the skin to pass through and a customizable ink layer that reacts irreversibly to change color along a gradient as ethanol is detected in the sweat. The customizable ink continues to increase color intensity along the gradient as ethanol continues to be detected in the sweat over time.

A method is for determining a beauty ritual. The method includes performing a beauty diagnosis of a user, and determining a generic beauty ritual including a set of recommended products selected according to the beauty diagnosis. Each recommended product is associated with a generic dosage and a generic prescription for use. The method further includes measuring, over time, the external stress undergone by the user with an environment sensor carried by the user during a period of time. At each increment of the period, the generic dosage and/or the generic prescription for use of the generic beauty ritual is modified based on the measured external stress to obtain a beauty ritual with recommended products having a dosage and/or a prescription for use enabling to respond to the external stress undergone by the user.

A method of determining a color value of a target object is provided. The method includes capturing an image having a color calibration object and a color reference object. Computed calibration color values for the color calibration object and a first computed reference color value for the color reference object may be determined based on the single first image. A color calibration coefficient may be determined. A corrected reference color value may be determined based on the color calibration coefficient and the first computed reference color value. A second image may be captured. A second computed reference color value of the color reference object and a computed object color value of the target object may be determined based on the second image. A corrected object color value may be determined based on the corrected reference color value, the second computed reference color value, and the computed object color value.

The invention relates to diagnosis in general and more specifically a system and a method for determining the presence of jaundice in newborn babies, also known as neonatal jaundice.

A main objective of the present invention is to provide a simple system and method for determining the presence of jaundice. Particularly since most deaths due to jaundice occur in low-income countries, there is a large unmet need of simple, reliable and affordable technologies able to identify at-risk newborn.

The objective is accomplished through receiving a depiction of skin from an RGB sensor, and then using either an optical diffusion model of the skin or Monte Carlo simulations to calculate the bilirubin concentration. A meta model of the optical diffusion model or Monte Carlo simulations can also be used. Colour calibration is also performed by e.g. thin-plate spline interpolation.

A dental imaging and illumination device. The device has an optical interface for emitting light from the device and for receiving light into the device. The device has a light source, a camera, a beam splitter and a color reference. The color reference and the light source are optically coupled via an optical path so that the light source can illuminate the color reference. This optical path bypasses the beam splitter. The device facilitates color measuring particularly in the field of dentistry.

Kits, diagnostic systems and methods are provided, which measure the distribution of colors of skin features by comparison to calibrated colors which are co-imaged with the skin feature. The colors on the calibration template (calibrator) are selected to represent the expected range of feature colors under various illumination and capturing conditions. The calibrator may also comprise features with different forms and size for calibrating geometric parameters of the skin features in the captured images. Measurements may be enhanced by monitoring over time changes in the distribution of colors, by measuring two and three dimensional geometrical parameters of the skin feature and by associating the data with medical diagnostic parameters. Thus, simple means for skin diagnosis and monitoring arc provided which simplify and improve current dermatologic diagnostic procedures.

Reference imagery of dermatological conditions is compiled in a crowd-sourced database (contributed by clinicians and/or the lay public), together with associated diagnosis information. A user later submits a query image to the system (e.g., captured with a smartphone). Image-based derivatives for the query image are determined (e.g., color histograms, FFT-based metrics, etc.), and are compared against similar derivatives computed from the reference imagery. This comparison identifies diseases that are not consistent with the query image, and such information is reported to the user. Depending on the size of the database, and the specificity of the data, 90% or more of candidate conditions may be effectively ruled-out, possibly sparing the user from expensive and painful biopsy procedures, and granting some peace of mind (e.g., knowledge that an emerging pattern of small lesions on a forearm is probably not caused by shingles, bedbugs, malaria or AIDS). A great number of other features and arrangements are also detailed.