We proposed an enhanced image binarization method.The proposed solution incorporates Monte-Carlo simulation into the local thresholding method to address the essential issues with respect to complex background,spatial...We proposed an enhanced image binarization method.The proposed solution incorporates Monte-Carlo simulation into the local thresholding method to address the essential issues with respect to complex background,spatially-changed illumination,and uncertainties of block size in traditional method.The proposed method first partitions the image into square blocks that reflect local characteristics of the image.After image partitioning,each block is binarized using Otsu’s thresholding method.To minimize the influence of the block size and the boundary effect,we incorporate Monte-Carlo simulation into the binarization algorithm.Iterative calculation with varying block sizes during Monte-Carlo simulation generates a probability map,which illustrates the probability of each pixel classified as foreground.By setting a probability threshold,and separating foreground and background of the source image,the final binary image can be obtained.The described method has been tested by benchmark tests.Results demonstrate that the proposed method performs well in dealing with the complex background and illumination condition.展开更多
基于径向基神经网络(Radial Basis Function Network,简称RBFN)及支持向量机(Support VectorMachine,简称SVM)的类似性,文章采用相同的符号体系,推导了RBFN及SVM在进行函数拟合时的表达式,指出这2种表达式形式上类似,主要区别是参数的...基于径向基神经网络(Radial Basis Function Network,简称RBFN)及支持向量机(Support VectorMachine,简称SVM)的类似性,文章采用相同的符号体系,推导了RBFN及SVM在进行函数拟合时的表达式,指出这2种表达式形式上类似,主要区别是参数的计算方法有所不同;以RBFN及SVM的拟合结果为响应面,基于蒙特卡罗模拟法进行了边坡的可靠度分析。计算结果表明,基于RBFN的蒙特卡罗模拟法与基于SVM的蒙特卡罗模拟法具有较高的计算精度及效率,2种方法在计算精度上没有明显的区别。展开更多
基金Project(2018YFC1505401)supported by the National Key R&D Program of ChinaProject(41702310)supported by the National Natural Science Foundation of China+1 种基金Project(SKLGP2017K014)supported by the Foundation of State Key Laboratory of Geohazard Prevention and Geo-environment Protection,ChinaProject(2018JJ3644)supported by the Natural Science Foundation of Hunan Province,China
文摘We proposed an enhanced image binarization method.The proposed solution incorporates Monte-Carlo simulation into the local thresholding method to address the essential issues with respect to complex background,spatially-changed illumination,and uncertainties of block size in traditional method.The proposed method first partitions the image into square blocks that reflect local characteristics of the image.After image partitioning,each block is binarized using Otsu’s thresholding method.To minimize the influence of the block size and the boundary effect,we incorporate Monte-Carlo simulation into the binarization algorithm.Iterative calculation with varying block sizes during Monte-Carlo simulation generates a probability map,which illustrates the probability of each pixel classified as foreground.By setting a probability threshold,and separating foreground and background of the source image,the final binary image can be obtained.The described method has been tested by benchmark tests.Results demonstrate that the proposed method performs well in dealing with the complex background and illumination condition.
文摘基于径向基神经网络(Radial Basis Function Network,简称RBFN)及支持向量机(Support VectorMachine,简称SVM)的类似性,文章采用相同的符号体系,推导了RBFN及SVM在进行函数拟合时的表达式,指出这2种表达式形式上类似,主要区别是参数的计算方法有所不同;以RBFN及SVM的拟合结果为响应面,基于蒙特卡罗模拟法进行了边坡的可靠度分析。计算结果表明,基于RBFN的蒙特卡罗模拟法与基于SVM的蒙特卡罗模拟法具有较高的计算精度及效率,2种方法在计算精度上没有明显的区别。
