Method for selecting an elastic venous restraint orthosis intended to be slipped onto a lower limb of a patient. Acquisition of a photograph representing the skin of the limb and a calibration map including one or more calibration zones. The calibration map is placed on the limb in a position termed the “acquisition position.” Calibration of the photograph by the calibration zone or zones, in such a way that the representation of the skin on the photograph exhibits a calibrated colour. Selection, as a function of the calibrated colour, by computer and from a set of colours of a tone chart, of a tone chart colour, preferably of the tone chart colour closest to the calibrated colour, termed the “optimal colour,” and then determination, by computer, of an orthosis colour as a function of the tone chart colour selected. Selection of an orthosis exhibiting the orthosis colour.

A universal color coding system, and method of analyzing objects with multiple attributes using the color coding system. The color coding system includes a color mapper arranged to map a plurality of colors with a plurality of numerical codes, wherein the each of the plurality of numerical codes is a unique integer determined based on a combination of prime numbers; wherein each of the plurality of numerical codes is arranged to represent a unique color in color space wherein each of the prime numbers represents a respective basic color of the color space; and wherein the plurality of numerical codes are integers calculated based on addition and multiplication of a plurality of prime numbers.

A mobile phone accessory for a smartphone, including a support and handling casing with an internal space, an inner face, an orifice for association with an AOI target, located within a light incident spot, and a rear wall portion, a lighting element, to illuminate the spot, a camera field of view, to make a reflection photo of the spot, a scattering plate, having a scattering opening with a center and a center, including high-opacity and low-opacity portions, which include color measurement targets, fixed on the face of the front wall portion, sidely with the measurement orifice, through the scattering opening is seen the spot, the scattering plate has from a high-opacity degree on and around the center to a low-opacity degree at the opposite and near the scattering opening, the scattering plate making homogeneous the lighting and the extension of the AOI target and color measurement targets.

A method of making a colorimeter colour standard, including determining print parameters required to achieve a desired colour for the colour standard, printing the desired colour on a colour-receiving face of a first transparent piece using the determined print parameters and permanently affixing the printed first piece to a second transparent piece such that the colour-receiving face of the first transparent piece and a joining face of the second transparent piece are positioned at the interface between the first transparent piece and the second transparent piece.

A mobile phone accessory for a smartphone, including a support, handling casing, an inner face, an orifice for association with an AOI target, located within a light incident spot, and a rear wall portion, a lighting element, to illuminate the spot, a camera field of view, to make a reflection photo of the spot and its content, a scattering plate, having a scattering opening with a center and a center, a number of color measurement targets, sufficient to accurately measure the color of the AIO target, selected to have defined colors within a narrow gamut of colors representing the whole range of AOI target colors, and forming together a color measurement unity, through the scattering opening is seen the spot, the color measurement targets being located within the internal space and fixed on the inner face of the front wall portion, sidely with the measurement orifice.

A mobile phone accessory for a smartphone, including a support and handling casing with an internal space, an inner face, an orifice for association with an AOI target, located within a light incident spot, and a rear wall portion, a lighting element, to illuminate the spot, a camera field of view, to make a reflection photo of the spot, a scattering plate, having a scattering opening with a center and a center, including high-opacity and low-opacity portions, which include color measurement targets, fixed on the face of the front wall portion, sidely with the measurement orifice, through the scattering opening is seen the spot, the scattering plate has from a high-opacity degree on and around the center to a low-opacity degree at the opposite and near the scattering opening, the scattering plate making homogeneous the lighting and the extension of the AOI target and color measurement targets.

A universal color coding system, and method of analyzing objects with multiple attributes using the color coding system. The color coding system includes a color mapper arranged to map a plurality of colors with a plurality of numerical codes, wherein the each of the plurality of numerical codes is a unique integer determined based on a combination of prime numbers; wherein each of the plurality of numerical codes is arranged to represent a unique color in color space wherein each of the prime numbers represents a respective basic color of the color space; and wherein the plurality of numerical codes are integers calculated based on addition and multiplication of a plurality of prime numbers.

Method for selecting an elastic venous restraint orthosis intended to be slipped onto a lower limb of a patient. Acquisition of a photograph representing the skin of the limb and a calibration map including one or more calibration zones. The calibration map is placed on the limb in a position termed the acquisition position. Calibration of the photograph by the calibration zone or zones, in such a way that the representation of the skin on the photograph exhibits a calibrated colour. Selection, as a function of the calibrated colour, by computer and from a set of colours of a tone chart, of a tone chart colour, preferably of the tone chart colour closest to the calibrated colour, termed the optimal colour, and then determination, by computer, of an orthosis colour as a function of the tone chart colour selected. Selection of an orthosis exhibiting the orthosis colour.

A system and method for calibrating an endoscope having the camera and the light source close to each other in an enclosed environment. The system includes a colour chart plate, being specularly reflecting, having radially extending colour patches, and a circular central achromatic bright field that can handle the automatic gain control of the camera. The colour chart can be mounted into a container unit having mechanically connected holders to support the endoscope arm.

A sheet for, when applied to a discolored part of skin, making the discolored part less conspicuous is provided. The sheet to be applied to the discolored part of the skin includes a thin film having a first surface applied to the skin, a first function layer including a coloring material and formed on a second surface of the thin film, and a second function layer including a reflective material and formed on a surface of the first function layer.