The present disclosure is related to an inspection system capable of inspecting a plurality of gaming chips. A game chip of the plurality of game chips includes a wireless tag storing first chip information and to which the optically readable second chip information is on a side of the game chip. The inspection system includes an inspection device configured to inspect one or more game chips. The inspection device includes a wireless tag reader configured to read the wireless tag of the game chip and acquire the first chip information. The inspection device includes a camera configured to reading the side surface of the game chip to obtain the second chip information. The inspection device includes a unit configured to determine whether the game chip passes one or more rules based on the first chip information and the second chip information.

The invention relates to a handheld device and method for determining a status of a plant. The device includes a multi pixel digital colour sensor, a light source arranged for providing broadband illumination, wherein the light source and the multi pixel digital colour sensor are arranged in substantially the same plane, a light guide for guiding the light from said light source into the direction of the multi pixel digital colour sensor, a sample space, provided between the multi pixel digital colour sensor and the light source, for insertion of at least a part of the plant therein, and a processing unit configured for controlling at least the multi pixel digital colour sensor and the light source.

Embodiments of the present disclosure provides a method for detecting variation value comprising selecting a numerical value in a first time interval as a comparison basis; selecting a numerical value in a second time interval as a inspection interval; statistically identifying the numerical value of the inspection interval and the numerical value of the comparison basis are to detect a variation value.

A method of digital measuring the color of fabrics based on digital camera, includes: making plain fabric samples; obtaining ground-truth color of plain fabrics using a spectrophotometer; capturing a raw format digital image of the plain fabrics using the digital camera and extracting raw camera responses of the plain fabrics; capturing a raw format digital image of a target fabric and extracting the raw camera responses of a ROI in the target fabric; calculating a Euclidean distance and a similarity coefficient between the raw camera responses of the ROI in the target fabric and the plain fabrics; normalizing the Euclidean distance and the similarity coefficient; calculating a weighting coefficient of each color data of the plain fabrics based on the normalized Euclidean distance and similarity coefficient; weighting every color data of plain fabrics with a corresponding weighting coefficient; and summing the weighted color data of the plain fabrics.

A tint measuring device configured for being connected in series in a fluid flow circuit, the tint measuring device including at least one light source configured for emitting polychromatic light towards the fluid in a measurement zone; a light sensor configured for receiving a light signal either reflected from or transmitted through the fluid, the reflected or the transmitted light signal corresponding to the optical reflection or the optical transmission, respectively, by the fluid, of the polychromatic light emitted towards the fluid by the at least one light source; and a computing unit configured for performing a spectral analysis of the light signal received by the light sensor and for determining a chromatic signature of the fluid.

A high-sensitive contactless chromaticity measuring device according to the present invention, includes: a lens unit to receive light emitted from a measurement object; a light distribution unit including an optical fiber to receive the light passing through the lens unit and distribute the received light through n paths to output the light to the other side, wherein a numerical aperture is greater than a predetermined reference value, a condensing lens to reduce an incidence angle of the light output to the other side of the optical fiber to a target angle or more, and n color filters to transmit different wavelengths of the light passing through the condensing lens; and a signal conversion unit including a photodiode to convert the light transmitted from the light distribution unit into an electrical signal.

To provide a color identification method capable of identifying a color-coded color region by a simple method. By using a method for measuring a distance to an object to be measured based on a principle of triangulation by using LED light, irradiating a position where a color of a color-coded plane changes with the LED light, receiving reflected light by a light receiving unit provided in a direction same as a direction where the color of the plane changes, and comparing an output signal from the light receiving unit at that time with an output signal obtained from the light receiving unit when a position where a color does not change is irradiated with the LED light, it is possible to identify a color change position of the color-coded plane.

To provide a color identification method capable of identifying a color-coded color region by a simple method. By using a method for measuring a distance to an object to be measured based on a principle of triangulation by using LED light, irradiating a position where a color of a color-coded plane changes with the LED light, receiving reflected light by a light receiving unit provided in a direction same as a direction where the color of the plane changes, and comparing an output signal from the light receiving unit at that time with an output signal obtained from the light receiving unit when a position where a color does not change is irradiated with the LED light, it is possible to identify a color change position of the color-coded plane.

A method of evaluating the quality of a color reference card having multiple color reference fields. The quality refers to whether the color reference card is usable for a method for determining concentration of analyte in a body fluid and/or to the degree of suitability or reliability of the color reference card for use with a method for determining analyte concentration in a body fluid. In the inventive method, an image is captured of at least a part of the color reference card using a mobile device camera. Measured color reference values are determined from the image for one or more of the color reference fields and a relationship between one or more of the measured reference color values and corresponding known reference color values is determined. The determined relationship is used to assess the quality of the color reference card. A kit and mobile device are also disclosed.

In one embodiment, a method is disclosed that includes selecting a first color sample within a target area in a first image of a first object displayed by a display device; selecting a second color sample within a target area in a second image of a second object displayed in the display device; comparing the first color sample against the second color sample to determine a measure of color difference or a measure of color equivalence between the first color sample of the first object and the second color sample of the second object; and displaying the results of the comparison to a user in the display device. One or more of these functions may be performed with a processor.