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   均方差阈值 的翻译结果: 查询用时:0.19秒
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均方差阈值
相关语句
  mean variance threshold
     The algorithm mainly controls the size of the smoothing area and the mean variance threshold to select the maximum correlation area containing minimum noise interference.
     该算法主要通过控制平滑区域大小和均方差阈值来选择受噪声干扰最小和最大相关区域。
短句来源
  相似匹配句对
     The Defibrillation threshold was less than 25 J.
     除颤阈值在 2 5J以下。
短句来源
     All data weve done analysis of variance.
     所有数据进行方差分析。
短句来源
     A Method for Selection of Discriminant for Least Square Threshold
     选择最小方差阈值的判别式方法
短句来源
     THE THRESHOLD SELECTION ALGORITHM BASED ON PATTERN CLASSIFICATION USING VARIANCES
     基于模式分类方差阈值选取算法
短句来源
     Sampling Inspection for the Standard Deviation σ on a Normal Population
     正态母体方差σ的抽样检验
短句来源
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A quadtree-based Maximal Quadratic Deviation Adjustable (MQDA) image compression algorithm is presented, which has less computing quantity and occupies lower memory space than other quadtree-based approaches. When sub images are merged to their higher-level bigger ones, a threshold of quadratic deviation and a level difference is used to control if leaf nodes and their corresponding middle node on the quadtree would be produced or not. By adjusting the threshold and the difference from 0 to 40, the algorithm...

A quadtree-based Maximal Quadratic Deviation Adjustable (MQDA) image compression algorithm is presented, which has less computing quantity and occupies lower memory space than other quadtree-based approaches. When sub images are merged to their higher-level bigger ones, a threshold of quadratic deviation and a level difference is used to control if leaf nodes and their corresponding middle node on the quadtree would be produced or not. By adjusting the threshold and the difference from 0 to 40, the algorithm realizes functions from lossless compression to loss compression. After compression, with same PSNR, the image processed by MQDA algorithm has lower bpp than that by JPEG compression. And with same compression ratio, the image vision quality by MQDA algorithm is better than that by JPEG compression. The algorithm has acceptable time complexity O(N3) and space complexity O(N), and it could be used to compress and transmit any size of images.

提出一种基于时域变换的失真度可调图像压缩算法 ,在象素合并过程中 ,利用一个最大均方差阈值和一个粒度差值控制象素节点和结构节点的产生 ,来生成四叉树结构及象素数据表。通过调整阈值和差值的具体取值 (0~ 4 0 )来实现不同的压缩比 (从无损压缩连续变化到大比例有损压缩 )。压缩后的图像在相同PSNR情况下比JPEG压缩占有更少的空间 ,在相同压缩比的情况下图像质量高于用JPEG压缩的图像 ;该算法还有良好的时间复杂性O(N3)和空间复杂性O(N) ,可用于任意大小图像的压缩与传输。

In this paper, a new image’s edge preserving orientation smoothing algorithm is proposed according to image’s correlation theorem and edge characteristic information. The algorithm mainly controls the size of the smoothing area and the mean variance threshold to select the maximum correlation area containing minimum noise interference. The simulations in this paper prove that it can perfectly restrain salt & pepper noise and gaussian noise by using the algorithm, meanwhile, the image’s edges and details are...

In this paper, a new image’s edge preserving orientation smoothing algorithm is proposed according to image’s correlation theorem and edge characteristic information. The algorithm mainly controls the size of the smoothing area and the mean variance threshold to select the maximum correlation area containing minimum noise interference. The simulations in this paper prove that it can perfectly restrain salt & pepper noise and gaussian noise by using the algorithm, meanwhile, the image’s edges and details are well preserved. As an image pre-processing method, it is of good practical value.

本文利用图像的相关性原理,结合图像的边缘信息,提出了一种新的图像边缘保持的方向平滑算法。该算法主要通过控制平滑区域大小和均方差阈值来选择受噪声干扰最小和最大相关区域。仿真证明该方法能够较好地去除椒盐噪声和高斯噪声,并且能够很好地保持图像的边缘和细节信息,作为图像的一种预处理方法,具有较高的实用价值。

 
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