A method to determine a reduction rate of a recovery boiler using optical information from a chemical smelt sample. A processor is used to read a digital frame at least part of which represents the chemical smelt sample of the recovery boiler. An area of interest is determined from the digital frame read comprising at least part of the area in the digital frame representing the chemical smelt sample. Of the pixel values of the area of interest, one or more spectral characteristic values correlating with the change of reduction rate are determined. The reduction rate of the recovery boiler is determined using a reduction rate function of one or more of the determined spectral characteristic values weighted at predetermined weights.

This invention relates to a testing system arrangement for assessing the level of a biochemical marker, comprising a disposable device (2) with a sample inlet (4) and a at least one visible detection compartment (5A, 5B), for detection of said bio-chemical marker, a mobile unit (8) including a digital camera arranged to capture a digital picture (60) of said at least one visible detection compartment (5A, 5B), software run on a processor for analysing said picture (60) to assess said level and means arranged to present the result (70) of said assessment in a display (8A) of or connected to, said mobile unit (8), wherein said disposable device (2) is arranged with at least one reference surface (12) having a predetermined colour setting that is known to said software to enable exact assessment of the colour within said detection compartment (5A, 5B) by the use of said reference surface (12) within said digital picture as a basis reference.

A testing apparatus for performing an assay, the testing apparatus comprising: a receptacle (2) containing a reagent, the reagent being reactive to an applied test sample by developing a color or pattern variation; a portable device (1), e.g. a mobile phone or a laptop, comprising a processor and an image capture device (3), wherein the processor is configured to process data captured by the image capture device and output a test result for the applied test sample.

The estimator learning device contains an image acquisition unit that acquires stained images provided by photographing respectively in a plurality of wavebands a biomaterial sample that has been stained with a prescribed staining solution; a cell nucleus extraction unit that extracts a cell nucleus region present in the biomaterial sample in each of the stained images; a color information acquisition unit that calculates, for each of the stained images, an absorbance in each of the wavebands in the cell nucleus region; and an estimator learning unit that, based on a relationship between the absorbance in each of the wavebands and information associated with the biomaterial sample and relating to whether the cell nucleus present in the biomaterial sample is in a prescribed state, trains an estimator that estimates whether the cell nucleus is in the prescribed state from the absorbance in each of the wavebands.

An optical analysis device for imaging a test sample with a camera including a housing base defining an interior volume, and a light chamber assembly disposed within the interior volume of the housing base. Optionally, the light chamber assembly includes a light tunnel defined by a continuous tube-shaped wall that extends from a first aperture to a second aperture: a light source is disposed both within the interior volume of the housing base and radially-outwardly of the tube-shaped wall of the light chamber. The camera is selectively positionable adjacent the first aperture of the light tunnel and the sample is selectively positionable within the interior volume of the housing base adjacent the second aperture of the light tunnel.

A processing apparatus includes: a first obtaining unit configured to obtain first image information relating to brightness adjustment of a first image obtained from light including light of a first light source and light of a second light source different from the first light source; a second obtaining unit configured to obtain second image information relating to brightness adjustment of a second image obtained from light of the second light source; and a control unit configured to control each of intensity of a first irradiation light emitted by the first light source and sensitivity of the first image and intensity of a second irradiation light emitted by the second light source and sensitivity of the second image.

This invention relates to a testing system arrangement for assessing the level of a biochemical marker, comprising a disposable device (2) with a sample inlet (4) and a at least one visible detection compartment (5A, 5B), for detection of said bio-chemical marker, a mobile unit (8) including a digital camera arranged to capture a digital picture (60) of said at least one visible detection compartment (5A, 5B), software run on a processor for analysing said picture (60) to assess said level and means arranged to present the result (70) of said assessment in a display (8A) of or connected to, said mobile unit (8), wherein said disposable device (2) is arranged with at least one reference surface (12) having a predetermined colour setting that is known to said software to enable exact assessment of the colour within said detection compartment (5A, 5B) by the use of said reference surface (12) within said digital picture as a basis reference.

A system for sorting products using an imaging device and an image processor.

An optical analysis system and process are disclosed. The optical analysis system includes one or more optical filter mechanisms disposed to receive light from a light source and a detector mechanism configured for operative communication with the one or more optical filter mechanisms, the operative communication permitting measurement of properties of filtered light, filtered by the one or more optical filter mechanisms followed by optical filtering by the mosaic optical filter mechanism from the light received. The one or more optical filter mechanisms are configured so that the magnitude of the properties measured by the detector mechanism is proportional to information carried by the filtered light. The process uses the optical analysis system.

An optical chemical test system and method detects information from areas of a chemical test component in the field of view of a color camera. The chemical test component can be a card or a strip and has a color change test area that changes in appearance when subjected to a target chemical in solution, which changes are detected by the color camera and used by an electronic control device to calculate a concentration value for the target chemical. Other areas of the chemical test component, when provided, calibrate the concentration value by providing further data that is recognized by the color camera and used by the electronic control device for calibration. The chemical test component can include features such as one or more indicia or locations for optical coding, card or strip identifiers and authenticators, one or more reference color areas and one or more reference white areas. Also, a color changing indicator can be provided for liquid temperature monitoring and determining whether or not a sample falls within an acceptable temperature range and/or for adjusting the displayed concentration to compensate for color shifts caused by variation in the fluid temperature. A housing system, when provided, facilitates use of controlled illumination in place of ambient illumination. The system and method are suitable for incorporation into a dishwashing machine for sanitation monitoring.