This paper proposes an algorithm based on curve evolution for unsupervised texture segmentation.
提出了一种基于曲线演化的非监督式纹理分割算法。
In this thesis, we study mainly geometric curve evolution models and their application in medical images.
本文主要就几何曲线演化模型及其在医学图像中的应用进行探讨。
Level Set methods are robust and efficient numerical tools for resolving curve evolution in image segmentation.
水平集方法应用于图象分割的曲线或曲面进化问题，是一种稳定有效的数值计算方法。
In this paper, an efficient approach to ROI extraction based on monotonically marching curve evolution is proposed.
提出了一种基于单调推进曲线进化的感兴趣区域提取新方法。
Using gradient-descent methods the energy function is minimized and a curve evolution equation is obtained to segment the image.
运用梯度最陡下降法，推导出能量函数曲线演化方程，并应用于图像分割。
And then, the theory of curve evolution, how to solve the PDEs model based on level set method and its calculation methods are expatiated.
其次详细介绍了曲线演化理论、偏微分方程模型的水平集方法求解以及数值计算方法。
With Eulerian formulation the partial differential equations (PDEs) of curve evolution are given and the two curves will stop on the desired boundary.
利用欧拉公式，得到曲线演化的偏微分方程。那两条曲线将在想得到的边界停止。
The Mumford-Shah model is more robust than curve evolution model to detect discontinuities under noisy environment, so it is more suitable for segmentation of noisy jacquard images.
提花织物图像分割是提花图案设计的关键，曲线演化模型是一种流行的图像分割方法，但是该方法无法检测含噪环境下的图像特征。
Meanwhile, the redundant skeleton branches are eliminated by Discrete Curve Evolution model, the visual branches are remained completely, the skeleton from this algorithm satisfy human vision.
同时，离散曲线演化模型有效的抑制了冗余骨架支的产生，得到了符合人类视觉规律的多尺度骨架。
The blue curve shows the evolution of the unperturbed sea-ice extent for the A1B scenario, with the gray shading showing the ensemble spread of three model runs.
蓝色曲线表示A 1 B方案中未受干扰的海冰范围，灰色阴影表示三个模型紧张的整体差幅。
The evolution curve show known that fractal dimension and damage variable present nonlinear increase with the increment of stress, and the change of fractal dimension is relatively smooth.
通过演化曲线可以看出，分形维数与损伤变量随应力的递增均呈非线性增加，但分维的变化较平缓；
The annual variation appears a tri-peak form in the curve of dekad- or pentad-hail days evolution.
从旬或候雹日演变看，冰雹年变化具有三峰型；
The increasing of the detuning results in the decrease of the oscillating frequency of the time evolution curve.
失谐量变大使时间演化曲线的振荡频率变慢；
This new thermodynamic interpretation has made it possible to quantify the various steps of evolution and to show that evolution has followed an exponential growth curve.
这种新的热力学解释不仅使得对演化进行阶段划分成为可能，还揭示演化遵循指数增长曲线这一规律。
The symmetry algebras of 1 + 1 dimensional nonlinear evolution equation arising from the motion of plane curve in affine geometry are systematically studied.
系统地研究了来自于射影几何中平面曲线运动的1 + 1维非线性方程的对称代数。
The symmetry algebras of 1 + 1 dimensional nonlinear evolution equation arising from the motion of plane curve in affine geometry are systematically studied.
系统地研究了来自于射影几何中平面曲线运动的1 + 1维非线性方程的对称代数。
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