Patent ID: 7340093
Filing Date: 2008-03-04
Classification: G06K

Abstract:
1. A luminescent intensity analysis apparatus, comprising: means for obtaining a measurement image in which a part of a sample having a plurality of luminescent portions and non-luminescent portions in a mixed form is excised; brightness recording means for recording a brightness corresponding to a two-dimensional position of the measurement image; digitization means for digitizing the brightness stored in the brightness recording means in n gradient levels; a first storing means for storing the digitized brightness in a storage device together with information of the two-dimensional position; a first computing means for reading brightness information stored in the storage device and creating a brightness histogram; a second computing means for dividing the brightness histogram into luminescent portions and non-luminescent portions based on a threshold gradient value (Grth) stored in a second storing means and computing an analysis value from the luminescent portions; and a third computing means for computing a concentration from a calibration curve stored in a third storing means and the analysis value, wherein said threshold gradient value (Grth) is a gradient level giving a correlation coefficient closest to 1 among correlation coefficients computed for each of the n gradient levels (Gr wherein the calibration curve between analysis values and known concentrations based on the threshold gradient value (Grth) is stored in the third storing means.