A reflection characteristic measurement system includes: a hand-held reflection characteristic measurement apparatus including a light receiver that receives reflected light; and a guide member that supports the reflection characteristic measurement apparatus, wherein the guide member includes: a plate-shaped support part having a support surface to support the reflection characteristic measurement apparatus; and a white calibration plate applicable to white calibration of the reflection characteristic measurement apparatus, the support part includes: an elongated hole extending in one direction along the support surface; and a guide structure provided to guide the reflection characteristic measurement apparatus so as to enable the apparatus to move along the one direction, the light receiver is provided on the reflection characteristic measurement apparatus so as to move along a predetermined moving path, the moving path of the light receiver extends in the one direction, and the white calibration plate is provided on the moving path.

A detection apparatus, a detection method and a detection system are provided. The detection apparatus includes: a light source module used to provide illumination for color filters; an image obtaining module used to obtain image data of the color filters; a light adjusting module disposed at a light-emitting side of the light source module and used to adjust a light direction of the light source module to make the light direction coincide with an orientation of the pixel units on a first direction or a second direction perpendicular to the first direction; a data processing module connected to the image obtaining module and used to perform a processing on the image data and judge whether there is an unqualified pixel unit in the pixel units as per a result of the processing. The light direction is adjustable to coincide with the orientation of pixel units.

A reflection characteristic measurement system includes: a hand-held reflection characteristic measurement apparatus including a light receiver that receives reflected light; and a guide member that supports the reflection characteristic measurement apparatus, wherein the guide member includes: a plate-shaped support part having a support surface to support the reflection characteristic measurement apparatus; and a white calibration plate applicable to white calibration of the reflection characteristic measurement apparatus, the support part includes: an elongated hole extending in one direction along the support surface; and a guide structure provided to guide the reflection characteristic measurement apparatus so as to enable the apparatus to move along the one direction, the light receiver is provided on the reflection characteristic measurement apparatus so as to move along a predetermined moving path, the moving path of the light receiver extends in the one direction, and the white calibration plate is provided on the moving path.

Systems and methods for producing blot images. A blot, for example a western blot, is imaged using an imaging system having a field of view and a magnification. Features of interest in the blot correspond to features in the digital image, and the sizes of the features in the digital image depend on the magnification of the imaging system. A structuring element is selected based on the sizes and shapes of the features in the digital image, and the image is morphologically eroded and dilated varying numbers of times. The eroded and dilated image is subtracted from the original blot image to remove background signal from the blot image, producing an output image. The number of erosions needed to completely erode the features of interest is determined automatically, for example by investigating the behavior of the kurtosis of the output image as a function of the number of erosions performed.

Fuel sampling systems are disclosed. In one embodiment, a fuel sampling system includes an optical capture device and an analysis computing device that stores logic for implementing an evaluation sequence. During the evaluation sequence, the analysis computing device performs at least the following: receive a captured image from the optical capture device, identify areas of highest contrast in the captured image, and determine if the areas of highest contrast define a ring. If the areas of highest contrast define a ring, evaluate a contrast ratio between the ring and areas outside of the ring, and determine if the captured image reflects a fuel sample that exceeds a predetermined limit of propensity for settling. If so, indicate that the captured image reflects a fuel sample that is not acceptable. Otherwise, indicate that the captured image reflects a fuel sample that is acceptable.

A method and apparatus for determining the concentration of a specific analyte in a sample of biological material are disclosed. The sample is placed in a sample container (10) which provides at least two radiation paths (14) with different lengths through the sample container (10), and is sequentially irradiated with electromagnetic radiation, e.g. X-rays. The amount of radiation penetrating the sample is detected, and absorbance is determined based on the detected radiation. During irradiation, the sample container (10) is moved in relation to the radiation source (1) and detector (5) so that absorbance measurements at different path-lengths are acquired. A regression line from the absorbance values and path lengths is determined, such that a slope of the regression line is obtained, and based on this slope, the concentration of the specific analyte is determined.