METHOD AND ARRANGEMENT FOR REDUCING NOISE IN A MICROFLUID DEVICE

The present invention concerns a method and an arrangement for reducing noise in a substance raw data image containing noise. The present invention also relates to a method and an arrangement for determining a measure of at least one substance. Each image is associated to one detection microcavity and one substance that is present in the detection microcavity of a microfluidic structure of a microfluidic device. The substance raw data information is obtained by use of a detector arrangement capable of scanning a search area associated to a detection area, which is associated to the detection microcavity. The method may comprise following steps in any order for removing different noise signals contributions step-by-step in any order in a substance raw data image : - reducing background radiation step alpha - reducing peak disturbance step beta - locating the detection area within the search area step χ - moving binary artefacts step DELTA - removing unwanted areas of the detection area step - applying default detection area in noisy images step phi.