Abstract:
According to the present invention, a system for tracking multiple objects may be provided. The system includes a background removal unit that updates a background model when an image is input, produces a new background image from the image, and obtains a foreground image that has been background-removed through image differencing between the image and the background image; a characteristic point determination unit that determines a characteristic point represented on the image and the foreground image with reference to a characteristic tree and extracts a determined characteristic point; a situation selection unit that uses the characteristic point extracted through the characteristic point determination unit to select the situation of an object represented on the image as any one of pre-classified situations; an object determination unit that compares a pre-stored object model with a characteristic point extracted from the image having occlusion when the state of the object is selected as occlusion, separates the object and determines the motion of the object; and an object tracking unit that updates the motion of the object determined through the object determination unit, predicts the motion of the object and then transfers the motion of the predicted object of the object to the situation selection unit through tracking inform.
Abstract:
The present invention relates to a method to analyze X-ray fluorescence and a method to remove backgrounds for the same, which accurately and efficiently removes backgrounds included in a spectrum for X-ray fluorescence analysis. A method to divide spectrum sections comprises: a step of creating a cumulative graph by performing multi-resolution analysis on spectrum data, and by collecting and accumulating differences of the analysis results; a step of detecting section division points by considering a gradient of the cumulative graph and the gradient rate; a step of dividing the spectrum data into sections based on the section division points; a step of firstly removing the backgrounds included in the spectrum data by classifying sections, where symbols of the differences of the analysis results are crossed and changes into a peak area, and the remaining sections into a background area; and a step of estimating the remaining background in the peak area and secondly removing backgrounds by fitting a beginning point and an end point of the peak area through a linear function or an exponential function.
Abstract:
The present invention relates to a method to divide spectrum sections to apply an interval threshold method even to XRF spectrum data with random properties by dividing the sections of the XRF spectrum using peak size characteristics, and to a method to analyze X-ray fluorescence using the same. The method to divide spectrum sections comprises: a step of reducing spectrum data through down sampling and then differentiating the reduced signal; a step of creating a cumulative graph by accumulating the differentiation results of the reduced signal; a step of detecting section division points using a gradient of the cumulative graph and the gradient rate; and a step of dividing the spectrum data into sections based on the section division points.