Patent Document ID: 9424631
Application ID: 14676906
Patent Status: 1

Claim One:
1. A device for calculating dynamic variation of an object comprising: an enhancement processing unit that adjusts brightness of a pixel determined to indicate a particle dispersed in the object in at least two (2) images generated for the object at different time points; and a calculating unit that calculates dynamic variation of the object based on correlation of the different two (2) images processed by the enhancement processing unit, wherein the enhancement processing unit sets brightness of a pixel having brightness with a threshold value or higher for each of the images to maximum brightness, wherein the enhancement processing unit produces a curve graph through curve fitting for a histogram graph obtained by accumulating the number of pixels according to brightness intensity of the pixels included in the images, wherein the enhancement processing unit sets the threshold value as an X axis value located at the intersection of the right side of a quadrangle and the X axis, wherein the bottom side of the quadrangle is the X axis, the leftmost side of the quadrangle is aligned with the histogram curve starting point, the upper side of the quadrangle extends from the histogram curve starting point horizontally towards the right, and the location of the rightmost side is chosen when a first area and a second area are determined to be equal, wherein the first area comprises an area bounded by the upper side of the quadrangle, the rightmost side of the quadrangle, and the portion of the histogram curve contained in the quadrangle, and wherein the second area comprises the area under the histogram curve to the right of the quadrangle and not contained by the quadrangle.