We searched each grid for picking up the 3D point position on which the quantity was equal to the designated contour level. Then these special points were connected in some contours according …
然后，从背景曲面的边界到内部逐个地搜索定义于背景曲面上某物理量的等值点，并按一定的规则将其连成等值线；
Aiming at the disability of parametric active contour models, people proposed Level Set Methed.
针对参数活动轮廓模型的缺点，学者们提出了水平集模型。
It can be seen that the depth of seabed is within 10 meters throughout the project area, and it only passes a single contour line, meaning that the area of the seabed is reasonably level.
可以看出，海床的深度是10米范围内整个项目区，只通过一个单一的轮廓线，这意味着海床的面积是合理的水平。
The original gray level image was changed into the macroscopical drawing information by pre-processing, threshold selection, image bivalency, edge detection and contour extraction and segmentation.
对原始数字图像实施预处理、二值化、轮廓提取及细化等处理后，将图像信息转变成宏观图形信息。
A new feature level fusion method of target's contour was proposed, which minimizes norm's square of the difference of control point vectors of convergent dynamic contours in two modal images.
提出了一种新的目标轮廓特征级融合方法，求解两类模式图像的收敛动态轮廓线控制点向量差的范数平方极小化。
It has a great significance in production of part with little curvature big contour, such as wings of plane, it enhance the productivity and level of craftwork.
它在具有小曲率大曲面的零件制造上有十分重大意义，比如机翼的制造，它将提高生产率和工艺水平。
At last, the initial contour lines are evolved using improved level set method to achieve object boundaries.
最后用改进的水平集方法对初始轮廓线进行演化而得到最终结果。
The image segmentation method based on level set active contour model is widely concerned by domestic and foreign scholars for its superior performance, flexible structure, and diverse forms.
基于水平集活动轮廓模型的图像分割方法凭借其优越的性能、灵活的结构、多样的形式被国内外学者广泛关注。
The prior region constrains the zero level set evolving in certain region and the prior shape pulls the curve to the ideal contour.
先验区域限制水平集在特定区域迭代，先验形状使曲线向理想轮廓演化。
Level set method can be used to make segmentation the structure of the brain by identifying the external cerebral boundary contour.
水平集方法通过识别脑组织外部边界轮廓实现脑组织结构的分割。
So we apply active contour method for engineering applications which are based on level set numerical scheme , and design a program with C.
为适应这些要求，该文采用基于水平截集的活动围道图像分割方法，进行了面向工程化的算法实现和C应用程序设计。
In the vicinity of object boundary, Gaussian potential force drives the contour towards boundary and high - level segmentation is implemented.
当轮廓线运动到目标边界附近时，在高斯势力作用下继续变形，完成图像高层分割。
Prior knowledge of the vehicles, such as shadows underneath the vehicles, rich edge information, contour symmetry, gray level symmetry, horizontal line symmetry and etc, is combined.
联合使用车底阴影、边缘信息、轮廓对称、灰度对称、水平线对称等车辆先验知识，提出一种基于特征的车辆检测方法。
Aiming at the distribution characteristic of pixel gray level in tested data, this paper proposes a valid and reliable searching and tracking policy for the object contour.
针对实验数据像素灰度的分布特点，提出了一种对目标轮廓线进行有效和可靠的搜索和跟踪策略。
Then the result is interpolated into the next finer level of approximation image as a initial contour, and evolved with edge based and inter scales shape constrained ACM.
然后通过插值将结果向下一尺度低频图像传递，并利用尺度间形状约束和边界约束复合acm进一步细化曲线，使其符合局部图像特征，如此逐层重复直至原始图像。
Then the result is interpolated into the next finer level of approximation image as a initial contour, and evolved with edge based and inter scales shape constrained ACM.
然后通过插值将结果向下一尺度低频图像传递，并利用尺度间形状约束和边界约束复合acm进一步细化曲线，使其符合局部图像特征，如此逐层重复直至原始图像。
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