分割

In each step of iteration, the new segmentation model only deals with the data in a narrow band instead of the whole image.

窄带Mumford-Shad模型把分割计算限制在窄带范围内，避免了大量的计算，但取得了与原始的Mumford-Shah模型相同的分割效果。

Four types of key video frame segmentation were discussed in this thesis, according to different scene type.

本文采用四种分割方式对视频关键帧进行区域划分，每种分割方式对应不同的视频帧类型，并由此进一步判定镜头类型。

For this purpose it employed a technique based on fractal dimension,multi-fractal and lacunarity concepts,and constructed feature vectors based on the concepts combined with intensity.

引入了分形、多重分形和空隙等概念，建立了其特征向量，结合灰度特征进行了图像分割实验，通过对提取出来的特征向量进行平滑滤波处理，采用 K 均值分类算法有效地保证了分割效果。

To overcome the shortcomings of present divisible e-cash scheme, for the first time, the thesis introduces group signature into divisible e-cash system and view the e-cash withdrawn by users as the group certificate issued by group administrator. As all of ancestor nodes of the payment node arc blindly transformed, the divided parts from one e-cash are no longer linkable.

针对现有可分电子现金方案存在的诸多缺陷，本文首次将适合于大群的群签名思想引人到可分电子现金中，将用户提取电子现金视为群管理员颁发给用户的群证书，通过将支付节点前的祖先节点进行盲化使得同一电子现金分割后的不同分割单元间不再有可链接性。

I mainly do is to image segmentation algorithm, this is the image segmentation procedure, the main neural network!

详细说明：我主要做的是图像分割算法的研究，这个是图像分割的程序，主要用神经网络！

In accord with the feathers of the soil microphotograph , a three-level segmentation scheme is used to segment the soil microphotograph.

针对土壤显微图像的特点，采用三级精化分割方案对图像施以分割。

Finally, a minimization method based on the quasi-Newton algorithm is put forward.

实验结果表明，该方法适合含噪图像的分割，是一种有效的图像分割算法

In addition, to get a better and more precise segmentation result, morphological image processing methods are used.

在上述两种风格迥异的分割技术中，为了更好的优化处理效果，使分割更精确，在过程中，都用到了形态学的图像处理技术。

Most current seg-mentation and tracking algorithms are of high complexity but not effective in getting rid of background noise. One algorithm is put forward to segment and trace video objects based on edge difference among multiple frames.

针对目前大部分视频对象分割和追踪算法相当复杂但仍不能有效地去除背景噪声的问题，该文提出用于分割和跟踪视频运动对象的一种基于多帧边缘差异的算法。

Then applied the new algorithm to a number of natural images.

提出的算法对多幅自然图像进行了分割实验，平均分割时间在3s内。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。