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Automated detection of blood vessel structures is becoming of crucial interest for better management of vascular disease. In this paper, we propose a new infinite active contour model that uses hybrid region information of the image to approach this problem. More specifically, an infinite perimeter regularizer, provided by using Lebesgue measure of the -neighborhood of boundaries,...
The so-called image registration is to find an optimal spatial transformation such that the transformed template image becomes similar to the reference image as much as possible. Several partial differential equations (PDEs) based variational methods can be used for deformable image registration, mainly differing in how regularization for deformation fields[1]. Regularization techniques based on total...
This paper investigated the factors influencing the quality of slope vegetation on highway and then constructed a comprehensive quality evaluation model. In the model, the ecology, landscape and stability functions of highway as main factors were analyzed respectively and the weights of main factors and sub-factors were determined by Analytic Hierarchy Process (AHP). Five levels were set up for evaluation...
In the construction of large bridge engineering, ultra-long piles are often used in a kind of deep foundations. Due to the complex characteristics of pile foundation, site conditions, construction methods and processes have the particularity, the super long pile, inevitably has broken pile, necking, segregation and other defects, so the integrity of the pile need to be evaluated. This paper combined...
The southwestern region of China is in karst areas, in which the geological structure is very complex, and it is extremely difficult to build the tunnel when the engineering experience in such long-distance karst is lack. The author introduced some kinds of membership functions in brief and listed the impact factors of the negative effects of groundwater environment in tunnel project to make subordinative...
The highway is the inevitable product of economic development, and is a sign of civilization and progress of human society. The construction and operation of the highway inevitably have much effect on the ecological environment of the highway and its surrounding areas, and how to protect and restore the ecological system of the Freeway reconstruction has become a research focus. In this paper, we...
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