查询词典 segmentation-cavity

By the minimum risk Bayes decision theory, this paper develops a new way of image segmentation: establish the mathematics model of image segmentation; estimate the probability density of grey scales and figure out its math-expectation and square difference that accord with normal distribution and the loss function; and judge the every pixel dot in the image according to the minimum risk Bayes decision theory and determine whether it is of target or non-target images, thereby realizing the extraction of the target image.

依据最小风险贝叶斯决策理论，提出了一种基于最小风险贝叶斯决策的图像分割方法。首先建立图像分割的最小风险贝叶斯决策模型，对灰度级类条件概率密度估计出其符合正态分布的数学期望和方差以及损失函数，再依据最小风险贝叶斯决策理论对图像中的每一像素点进行目标图像和非目标图像的类别判断，从而实现目标图像的提取。

Aimed at resolving the problems of sensitivity to noise and over-segmentation existing in traditional watershed algorithm, a new image segmentation method-CWAC is presented. First, an image is separated into a large number of small partitions by watershed algorithm and the characteristic parameters are calculated.

针对传统分水岭分割算法对噪声敏感和易于产生过分割问题，提出一种新的基于分水岭和蚁群智能聚类的图像分割方法(CWAC， Combining watersheds and ant colony clustering)。

Experiment shows that the method can not only simplify the segmentation of lung parenchyma,but also achieve a good segmentation effect.

实验结果表明，该方法能简化分割处理，且分割效果较好，有不错的应用前景。

The problem of huge numbers of datas are disposed in the process of disposed three-dimensional laser scanning datas, so on the base of carefully analszing the serial algorithm of plane segmentation and multiple datasets registration in the process of disposing three-dimensional laser scan datas, according to the method of parallel programming basing on MPI, the paper used the right means of datas distributing to design and realize the parrel algorithm of plane segmentation and multiple datasets registration.

本文针对三维激光扫描数据处理过程中所处理的数据量大这一问题，在认真分析了三维激光扫描数据处理过程中平面分割和多视点配准串行算法的基础上，根据基于MPI并行程序设计方法，采用合适的数据分配方案，设计了平面分割和多视点配准的并行算法，并给出了效果图，以及并行算法加速比和效率的实际数据，最后对并行算法效果进行了分析。

The common segmentation methods of cloud data were discussed in the paper. Considering the characteristics of autobody surface, a method for region segmentation algorithm according to the quantity planarity was proposed.

探讨了点云数据的常用分割方法，结合车身曲面特点，研究并实现了一种点云分割的算法－基于平面度的直接分割方法。

The words segmenting experiments of the system indicated that this segmenting method can solve the problem of polysemous segmentation and have high words segmentation efficiency.

系统的运行实验表明该分词算法能比较好地解决汉语分词的歧义问题，并具有较高的分词效率。

And through experiments made comparison on the principle of segmentation comparison, geting out impact of quality and assessment about segmentation algorithm and dictionary.

并通过实验对分词原理做出比较，就分词算法、词典对分词质量的影响做出判断和评估。

Meanwhile, for the characteristics of plant disease spot, segmentation model was created by utilizing the local correlated characteristic of Markov random field and linear stationary auto-regression model formed by Gauss distribution, and self-adaptive segmentation of plant disease spot was realized through optimizing the model with improved ant colony algorithm and maximum a posteriori probability estimation of Gauss-Markov random field.

同时，利用Markov随机场的局部相关特性并结合Causs分布组成线性平稳自回归模型，针对植物病斑特征建立分割模型。最后，采用改进型蚁群算法对其进行优化，并结合Gauss-Markov随机场最大后验概率估计，实现对植物病斑的自适应分割。

The study continued previous studies of image segmentation. It brought many kinds of interpretative knowledge of different land-use type and image processing tools together and found out why image segmentation can not be fully automated. During the process of study, repeated provability and enhancement of the original theoretic framework were also be done well.

本研究延续以往对区格化研究的成果，搜集各种不同地物类型的判释知识及与区格化相关之影像处理工具，以系统实作的方式，深入了解区格化未能达到完全自动化的瓶颈所在，并於实作过程中反覆对前人所提之理论架构进行验证及补强。

For fingerprint segmentation, aiming at the deficiency of existing method, we first bring forward a new thought of fingerprint segmentation based quadric surface model and carry it out.

在指纹图像分割方面，针对现有指纹图像分割方法存在的不足之处，首次提出采用二次曲面对指纹图像进行分割的思想，并使用该思想实现了基于二次曲面模型的分割方法。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。