pencil of circles

A new level set method based on circle dependent had been deduced,and then an algorithm for segmentation of pulmonary nodule candidates in CT images had been presented,it solved the problem of detecting multi-circle areas with different sizes in an image.

针对肺部CT图像中圆形病灶区域的分割问题,对Chan-Vese水平集图像分割方法进行了分析和改进,提出了基于圆形约束的C-V水平集模型,进而提出了基于圆形约束水平集的肺部图像病灶分割算法,解决了图像中大小不同的多圆检测问题。

An algorithm of searching and computing two adjacent polygons closest distance based on restricted circle has been proposed in this paper, which can be fitted for the situations of undistinguished shapes and location relationships of the two.

本文还提出了基于约束圆寻找并计算任意两个实体多边形之间的最近距离方法,并给出了约束圆的特征。

Characteristics research of rectangular finned elliptical tubes and analysis of field synergy

矩形翅片椭圆管束性能研究及场协同分析

Numerical investigation of heat transfer in tube bundle cross-flow for elliptic and egg-shaped tubes

横掠蛋形和椭圆管束对流换热的数值模拟研究

elliptical iris waveguide

椭圆形光圈式波导管

The measured and calculated patterns are given in the end of the paper.

这种天线可以形成高效率的椭圆波束。

Performance Analysis of the Elliptic Beam Ring-focus Antenna with a Variable Focal Distance

椭圆波束变焦距环焦天线的性能分析

New auto-calibration and compensation method for vehicle magnetic field based on ellipse restriction

基于椭圆约束的新型载体磁场标定及补偿技术

Hierarchical ellipse detection algorithm based on local PCA Hough transform with parameter restraint

局部PCA参数约束的Hough多椭圆分层检测算法

Resembling an ellipse in shape;elliptical.

椭圆形的形状类似椭圆的，椭圆的

Research on the Structure Design and Simulation of New Oval LED;

新型椭圆管LED的结构设计与仿真研究

Study of Simple Design Method of Ellipse Shoulder Forming Device

椭圆管翻领成型器简易设计方法研究

Numerical Simulation of Laminar Flow and Heat Transfer Characteristics in Elliptical Tubes

椭圆管内层流流动与换热的数值研究

NUMERICAL STUDY ON FLOW AND HEAT TRANSFER IN A ELLIPTICAL AND CIRCULAR FINNED TUBE

椭圆形和圆形翅片管流动与传热的数值研究

Circle flange forming by prefabricated elliptical hole in stainless steel elbow

不锈钢弯管上用预制椭圆孔翻边成形圆孔

Why not simply specify starting and ending points on the circumference of the ellipse?

为什么不简单地指定椭圆的圆周上的开始和结束的点呢？

ellipsoidal head

椭球体的封头, 椭圆封头

Deviation from perfect circular or spherical form toward elliptic or ellipsoidal form.

椭圆形，椭圆球从正圆或球形向椭圆或椭圆球的偏离

An Algebraic Multigrid Algorithm for Elliptic Variational Inequality with Obstacle and It s Parallel Processing;

椭圆型带约束变分不等式的一种代数多重网格解法及其并行处理

Research on the Influence of Thermal Deformation of the Elliptical Reflector in Gimbals on the Beam Propagation

二维转台椭圆反射镜热变形对传输光束影响研究