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In this paper a new method to detect the center of a circle is proposed. This method uses pairs of perpendicular bisectors of each two no-repeat intersecting chords to calculate the intersection which is the center of the circle. It can overcome the drawbacks of deviation caused by edge points nonuniformly distributed by centroid method, and drawbacks of highly computation time and a large amount...
In this paper, a new approach of multi-modality image registration is represented with not only image intensity, but also features describing image structure. There are two novelties in the proposed method. First, instead of standard Mutual Information (MI) based on joint intensity histogram, Regional Mutual Information (RMI) is employed, which allows neighborhood information to be taken into account...
It is important to do research on the source trustworthiness of the massive data under network environment. A detection method of source trustworthiness in text is proposed and designed based on cognitive hash. Based on the HowNet semantic features, this paper designs a text cognitive hash, and proposes a method evaluating feasible hash distance. Experimental results show the effectiveness of the...
The purpose of this study is to investigate the significance of the multi-agent interactive information fusion algorithm over the matter of identification of breast masses in digitized images. For the lack of enough correlation information between the individual classifiers, the generalization performance of the Bayesian fusion method is sometimes far from the expected level, and thereby the multi-agent...
Mass segmentation plays an important role in many computer-aided diagnosis (CAD) system. It is usually used as the previous step of mass classification. In this paper, we propose one novel scheme for segmentation of breast mass in digitized mammograms, which is based on gradient vector flow (GVF) snake and multi-scale analysis using Gaussian pyramid. In the proposed method, mammogram is decomposed...
The fixed parameters in traditional PID controller lead to poor performance. In this paper, the ideal change relationship between the error of the control object and the control parameters is analyzed and nonlinear functions are presented to form a nonlinear PID controller. The parameters are tuned with the NCD Blockset in Simulink. The nonlinear PID controller is applied to one main steam temperature...
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