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阈值化     
相关语句
  thresholding
     In this paper, a new approach for image segmentation ,which was basedon fuzzy clustering and fast two dimensional thresholding, was proposed and implemented.
     提出了一种将快速二维阈值化与模糊聚类相混合的图象分割方法,以进一步减少快速二维阈值分割中的噪声与错误分割。
短句来源
     Otsu's method is a good thresholding method.
     Otsu阈值化方法是一种性能良好的方法 .
短句来源
     Adaptive thresholding algorithm on low-contrast image
     低对比度图像的自适应阈值化算法
短句来源
     Denotes three highfrequency images W 1,W 2,W 3 got through filtering the origin image I,i. e, W=W 2 1+W 2 2+W 2 3 . Then it does non maximum suppression and hysteresis thresholding to get the edge image of the image I.
     对非乘积型小波滤波器组 ,先由它们拟合沿水平、竖直方向的滤波器组 ,若记 W1 ,W2 ,W3 为图像 I滤波之后的三个高频图像 ,W=W21 + W22 + W23 ,对 W进行非最大值抑制、滞后阈值化 ,得到图像 I边缘图 .
短句来源
     A Wavelet Image Compression Method Based on Non-Linear Soft Thresholding
     基于非线性软阈值化的小波图像压缩方法
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  making threshold
     Study on making threshold on the image processing of vision tracing weld line
     基于焊缝视觉跟踪的图像阈值化研究
短句来源
  threshold technology
     Finally,combined the suppression method with the image threshold technology,a new small and dim target detecting algorithm was presented.
     最后,在该抑制算法基础上,结合阈值化技术形成了一种新的弱小目标检测方法。
短句来源
  threshold selecting
     After digital image processing,the image of weld flaw on radiogragh is clear,but before auto recognition,we should taking the algorithms of quadratic derivative passing zero fringe extraction,threshold selecting to partition the flaw image.
     射线底片焊缝缺陷图象经数字化图象预处理后 ,缺陷已经明显 ,但在自动识别前尚须进行图像分割 ,为此我们采用二阶导数过零边缘检测和阈值化分割算法。
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  thresholding
The MCA algorithm consists of an iterative alternating projection and thresholding scheme, using a successively decreasing threshold towards zero with each iteration.
      
A segmentation method making it possible to detect several objects in an image field with a nonuniform illuminance is proposed; this method is based on dynamic thresholding.
      
Application of Dynamic Thresholding of Video Images for Measuring the Interfacial Tension of Liquids and Contact Angles
      
This method uses the dynamic thresholding and is applied to the analysis of video images of pendant and sessile drops for determining the interfacial tension of liquids and contact angles.
      
The spectral profiles of the individual modes with degree l = 0 and orders n ? 12-26 were fitted using a wavelet decomposition with thresholding of the high-frequency decomposition levels.
      
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  threshold selecting
Furthermore, we have modeled the denoising problem and proposed a novel threshold selecting method.
      
  其他


The extracting features of metallography is the key to metallographic analysis. On the basis of analyzing area and edgr (grain boundary)features of metallography, this paper indicates: image threshoiding using entropycan extract area feature; as edge is extracted by differential operator, noise is filt-ed by a new method suitable for grain boundare and net-structure. The experi-mental results show the efficiency of the method.

金相图象特征信息提取是进行金相分析的关键.本文在分析金相图象的区域和边缘(晶界)二类特征信息基础上,指出采用基于熵概念的图象阈值化技术可实现区域特征提取.用微分算子实现边缘(晶界)提取后,采用适合晶界及网状结构的滤波方法进行滤波,从而实现边缘(晶界)的准确提取,并通过实验验证了上述方法的有效性.

Otsu's method (1979) is considered as a good thresholding method for image segmentation. In this paper, an efficient c-mean calustring algorithm which is suitable for image segmentation is proposed. It yields th came results as Otsu's method, but its computational time is about one order of magnitude less than that of Otsu's method.

Otsu(1979)的阈值化法被认为是一种良好的图象分割方法。本文提出一个适合图象分割的高效的c均值聚类算法。它与Otsu法有完全相同的分割结果,但计算时间约减少了一个数量级。

One of the most useful thresholding techniques using gray-level histogram of an image is the OTSU method. The objective of this paper is to extend it to the 2-dimensional histogram. The 2-dimensional OTSU method utilizes both the gray level information of each pixel and its spatial correlation information within the neighborhood. The comparison between this method and the 1-dimensional OTSU method show that this method performs much better when the images are corrupted by noise.

Otsu法是最常用的利用图象一维灰度直方图的阈值化方法之一,本文的目的是将它推广到二维直方图。二维Otsu法除了考虑象素点的灰度信息外还考虑了象素点与其邻域的空间相关信息。通过与一维的Otsu法比较表明,在有噪声的图象中,本文提出的方法性能好得多。

 
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