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邻域一致性测度
相关语句
  region homogeneity measure
     An improved chain codes method based on region homogeneity measure
     基于邻域一致性测度的链码改进方法
短句来源
     So we led to the concept of the region homogeneity measure;
     因此引入邻域一致性测度的概念,提出了链码的一种改进方法.
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  相似匹配句对
     An improved chain codes method based on region homogeneity measure
     基于邻域一致性测度的链码改进方法
短句来源
     So we led to the concept of the region homogeneity measure;
     因此引入邻域一致性测度的概念,提出了链码的一种改进方法.
短句来源
     A Consensus Measure On Multiple Criteria Group Decision Making
     多准则群决策的一致性测度
短句来源
     VaR,Expected Shortfall and Measurement of Consistency Risk
     VaR、ES与一致性风险测度
短句来源
     Knowledge Measure
     知识测度
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The curve of the target extracted form the image is affected by the noise,and make the homologous boundary chain codes difficultly in accordance with the target shape.So we led to the concept of the region homogeneity measure; and put forward an improved method. Make use of the method coding the edge detected by the Canny operation, experiment showed,the method improved the sensitivity to the noise the conventional method has, and it can be used effectively in the processing before analyzing the target shape....

The curve of the target extracted form the image is affected by the noise,and make the homologous boundary chain codes difficultly in accordance with the target shape.So we led to the concept of the region homogeneity measure; and put forward an improved method. Make use of the method coding the edge detected by the Canny operation, experiment showed,the method improved the sensitivity to the noise the conventional method has, and it can be used effectively in the processing before analyzing the target shape.

从图像中提取出的目标边界曲线由于受噪声的影响,使得相应的边界链码很难与目标形状一致,影响了用链码来分析目标形状.因此引入邻域一致性测度的概念,提出了链码的一种改进方法.利用该方法,对由Canny算子检测得到的边缘图像进行编码.实验结果表明,上述算法明显改善了常规方法对噪声敏感的性能,能有效地使用到链码分析目标形状的预处理中.

Real-time neutron radiography image is usually corrupted by speckle noise. An effective iterative filtering algorithm is presented based on the mechanism and characteristics of speckle noise. It consists of noise detecting and iterative filtering. A crisscross detection window is designed and each pixel is classified to be signal or noise via calculating the neighborhood homogeneous measurement (NHM). The noise pixels are iteratively filtered and other valid pixels are preserved without modification. The filtering...

Real-time neutron radiography image is usually corrupted by speckle noise. An effective iterative filtering algorithm is presented based on the mechanism and characteristics of speckle noise. It consists of noise detecting and iterative filtering. A crisscross detection window is designed and each pixel is classified to be signal or noise via calculating the neighborhood homogeneous measurement (NHM). The noise pixels are iteratively filtered and other valid pixels are preserved without modification. The filtering is a process of median calculation and the size of window can be modulated adaptively. This scheme prevents the propagation of noises in the neighborhood and features highly computational efficiency. For the corrupted simulated image whose peak signal to noise ratio(PSNR) is 24.51dB, the results show that the presented approach can outperform 3×3 median filtering both visually and in terms of the PSNR values, which is improved from 26.81dB to 31.54dB.

根据实时中子辐照图像“斑状”噪声的成因和特点,提出一种有效的迭代滤波算法。设计十字形噪声检测窗口,通过计算邻域一致性测度(NHM),将像素分为噪声和信号。对噪声进行迭代滤波,而对信号则不做任何处理。滤波是一个中值计算过程,同时窗宽可自适应调整。这种方案不仅避免了噪声在邻域的传播,且有较高的计算效率。实验结果表明,对于峰值信噪比(PSNR)为24.51dB的噪声污染图像,3×3中值滤波后PSNR只有26.81dB,而本文算法能将其提高到31.54dB,同时图像的视觉效果更好。

A novel method for image edge detection is presented based on information measurement and Support Vector Machine,which is called ISEDM(Information measure and support vector machine edge detection method).At first,a vector is constructed to fully describe a edge point information measure,which includes neighborhood homogeneity information measure,orientation information measure, and gradient strengths.(Secondly,) SVM is applied to train and classify the set of feature vectors,so that the edge of the image is...

A novel method for image edge detection is presented based on information measurement and Support Vector Machine,which is called ISEDM(Information measure and support vector machine edge detection method).At first,a vector is constructed to fully describe a edge point information measure,which includes neighborhood homogeneity information measure,orientation information measure, and gradient strengths.(Secondly,) SVM is applied to train and classify the set of feature vectors,so that the edge of the image is detected.The experimental results show that ISEDM can not only effectively reduce the noises of the image,but also can precisely detect the edge-position,and keep the image edges' details well.

将信息测度和支持向量机结合在一起,提出了一种新的图像边缘检测方法(information measure and support vec-tor machine edge detection method,ISEDM).首先,基于数学测度概念构造一个描述边缘点信息测度的特征矢量,该矢量由邻域一致性测度、方向性信息测度和梯度分布3个特征分量组成,然后运用支持向量机对特征矢量数据集进行训练和分类,实现了对边缘点的检测.实验结果表明,对于含有加性噪声、乘性噪声等图像的边缘检测,ISEDM能够有效地抑制噪声,较多地保留图像边缘的细节信息,边缘图像锐利而清晰.

 
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