DNA CHIP IMAGE SPOT VALIDITY ASSESSING DEVICE, DNA CHIP IMAGE SPOT VALIDITY ASSESSING METHOD, AND DNA CHIP IMAGE SPOT VALIDITY ASSESSING PROGRAM

摘要

The invention makes it possible to prevent erroneous detection based on contamination or based on a pseudo-spot in a DNA chip image, and to improve the accuracy of examinations employing DNA chips. A device for assessing the validity of spots in a DNA chip image obtained by capturing an image of the DNA chip, to which probes have been fixed, in a state in which a labeled specimen has been bound to the probes, the device being provided with: a multi-stage binarization processing unit which creates a plurality of binarized images from the DNA chip image using, as thresholds to be used in an image binarization process, a plurality of thresholds distributed over the entire range of brightness in the DNA chip image; a spot shape and position detecting unit which detects the shapes and positions of spots in the binarized images; and a spot shape and position assessing unit which assesses the acceptability of the spot shapes and positions detected by the spot shape and position detecting unit.