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- So the gradient threshold and the Gradient Vector Flow(GVF) were introduced into the speed stopping function. 针对传统水平集分割图像会出现演化曲线停止于梯度的局部极大值或孤立的边缘处的缺点,对速度停止项进行了改进。
- So the gradient threshold and the Gradient Vector Flow (GVF) were introduced into the speed stopping function. 该方法将梯度阈值和梯度矢量流引入速度停止项中，利用梯度阈值来使边缘得到更好的保持；
- A new ellipse extraction algorithm based on the ellipse-special deformable templates and gradient vector flow (GVF) was proposed. 摘要给出一种结合梯度矢量流(GVF)及椭圆变形模板的椭圆提取新算法。
- Therefore,according to features of the contours in fabric drape images,an active contour model(Snakes model)based on the gradient vector flow(GVF) field is proposed to recognize the edges of fabrics. 根据织物悬垂图像的边缘轮廓特点,提出采用基于梯度向量流场(GVF)的动态轮廓模型(Snake模型)来识别织物的边缘轮廓。
- Objective To promote stability and accuracy of gradient vector flow (GVF) deformable models by improving external potential force field of ultrasound images under speckle noisy environments. 结果通过二值加噪图像和心脏超声图像的实验,验证了该方法的捕捉范围和处理噪声方面优于GVF。
- According to the characteristics of these systems, gradient vector flow (GVF) field links segmentation, extraction of skeleton, and registration for speeding the system processing. 根据这些系统的特点，本文提出以梯度矢量流(GVF)场为主线，连贯医学图像的分割，骨架提取和配准等算法，这样做的目的主要是加快系统的处理速度。
- A new method of contour initializaiton was proposed by analyzing the shortcomings of the huge waste of time and the failure of extracting some true contours in Gradient Vector Flow(GVF) Snake model. 通过对梯度矢量流（GVF）力场迭代和轮廓收敛过程中时间开销大、不能逼近较复杂轮廓等不足之处的分析，提出了一种新的初始轮廓线的设置方法。
- degenerated minimal surface gradient vector flow 退化最小曲面梯度矢量流
- Gradient Vector Flow (GVF)-Snake Model 基于梯度矢量流的活动轮廓模型
- Eye Feature Extraction Based on Gradient Vector Flow Field 基于梯度向量流场的眼睛特征提取
- Iterative Gradient Vector Flow Snake for Segmentation of Image 迭代梯度矢量流变形模型的图象分割方法
- Analysis of the Critical Point of the Gradient Vector Flow Snake Model 梯度矢量流Snake模型临界点剖析
- Keywords MRI;deformable models;gradient vector flow;image segmentation; 可变模型;梯度矢量流;图像分割;
- Band Limitation-Based Gradient Vector Flow Active Contour Model for Ultrasound Image Segmentation 基于边带限制的梯度矢量流主动轮廓线模型的超声图像分割
- Extraction Algorithm of Contour Lines Based on Generalized Gradient Vector Flow Snakes Model 基于梯度矢量流主动轮廓模型的等高线提取算法
- medical image processing; image segmentation; GVF(Gradient Vector Flow); RAG(Region Adjacency Graph 医学图像处理;图像分割;梯度向量流;区域邻接图
- Keywords fabric drape performance;image segmentation;edge detection;active contour model;gradient vector flow; 织物悬垂性;图像分割;边缘检测;动态轮廓模型;梯度向量流;
- A New Approach to the Motion Estimation of Cardiac Image Sequences: Active Contours Motion Tracking Based on the Generalized Fuzzy Gradient Vector Flow 心脏序列图像运动估计新方法:基于广义模糊梯度矢量流场的形变曲线运动估计与跟踪
- gradient vector flow (GVF) 梯度矢量流
- gradient vector flow 梯度矢量流
