1) thresholding
阈值化
1.
Survey, classification and evaluation of image thresholding techniques;
图像阈值化技术的综述、分类及评价
2.
Image thresholding segmentation based on edge information;
基于边缘信息的图像阈值化分割方法
3.
The combined algorithm that changes thresholding based on histogram into thresholding based on H in HSI color space and selects the pixels according to its R,G,B value,before thresholding;Three kinds of algorithms in image segmentation were analyzed by testing,including K-mean clustering based on RGB color space proposed by Liju Dong,etc,thresholding based on histogra.
提出一种混合算法,将一种基于灰度直方图的阈值化分割算法应用到了HSI颜色空间上,利用H进行阈值化,在阈值化之前,先根据R、G、B值对像素进行了筛选;文章应用董立菊等人提出的-种基于RGB空间的K均值聚类算法、一种基于灰度直方图的阈值化算法和混合算法,以目标颜色为特征,对彩色图像进行了分割;针对特定的视频跟踪系统,对各结果进行了比较,得出了结论,找出了较优算法——混合算法效果较理想,能够较有效的分割目标,为后续跟踪工作做好了前期处理工作。
2) threshold
[英]['θreʃhəʊld] [美]['θrɛʃhold]
阈值化
1.
We also discussed the influence of threshold parameter η on clustering algorithm,and presented the program steps.
为提高故障诊断模式分类的收敛速度及诊断准确度,采用阈值化类内距离的方法,研究了一种新型SFCM聚类算法,证明了算法模糊加权幂指数m在区间(0,1)取值时能实现半模糊聚类,讨论了阈值η对算法的影响并给出了聚类程序算法,实验结果表明此算法较FCM算法在收敛速度和聚类精度方面有较好表现,在故障模式分类中有一定的使用价值。
2.
The effect of threshold parameters η on the clustering was investigated,and the steps of the algorithm were given.
为满足故障诊断的实时性和准确性要求,采用阈值化类内距离的方法,研究了一种快速收敛的半模糊c均值(SFCM)聚类诊断方法。
3.
The problem of segmenting thrombocyte image was considered, and a series of algorithms which include edge detection, eliminating edge points not in the cell contour and thresholding based on edge image was introduced.
它包括边缘检测、消除细胞边界以外的边缘点和利用边缘信息的阈值
3) Threshold estimating
阈值量化
4) cavitation threshold
空化阈值
1.
Aiming at exploring the possibility of the formation of ultrasonic cavitation in supercritical fluid CO_2,the laws of cavitation threshold varying with the original radius of cavitation bubble,the pressure and the temperature were investigated,based on the basic theory of cavitation threshold and the thermophysical values of supercritical fluid CO_2.
为了研究超临界CO2流体中超声空化产生的可能性,根据超声空化阈值的基本理论和超临界CO2流体的物态数值,研究了超声空化阈值随空化泡初始半径、流体压力和温度的变化规律。
2.
Based on the basic theory of cavitation threshold and thermophysical value of subcritical water,the laws of cavitation threshold varying with pressure and temperature of subcritical water are investigated.
为了充分利用亚临界水萃取技术和超声强化技术的优点,设计了超声强化亚临界水萃取的装置,并根据声空化阈值的基本理论和亚临界水的物态数值,研究了超声空化阈值随亚临界水的压力和温度的变化规律。
5) quantization threshold
量化阈值
1.
Wavelet image coding algorithm based on integer square quantization threshold and index table;
基于整数平方量化阈值和索引表的小波图像编码算法
2.
Since ISZW used successive integer squares as quantization thresholds,it shortened the distance between two consecutive thresholds,but increased coding times,thus reduced coding speed.
为了解决整数小波变换与传统零树编码(EZW)算法相结合产生的量化阈值的选取问题,有人提出了基于整数平方量化阈值的零树编码(ISZW)算法。
3.
This paper proposes "integer square quantization threshold from 1" instead of "2 of integer power quantization threshold" during EZW coding.
针对静止图像经整数小波变换(integer wavelet transform)后,各子带系数的幅值动态变化范围小,不利于零树编码(embedded zerotree wavelet coding)的缺点,采用“从1开始的整数平方”代替“2的整数次幂”作为零树编码的量化阈值,缩短了量化阈值间隔,通过减少重要系数在较低量化阈值中出现的机会,增加了编码过程中的零树数量;同时通过减少参与编码的字符数及对最高频带零树不编码,简化了编码过程。
6) transform key
转化阈值
补充资料：地理阈值
亦称地理临界值。它将地理系统中的不同状态加以分隔与区分，把某一性质的表现范围加以限制和说明。在此种意义上，地理阈值代表了系统的“状态空间”的非连续性。在一般叙述中，常把地理阈值等同于地理系统边界条件，但二者是有区别的：如果两种不同的状态同时存在于相同的边界条件之中时，地理阈值的表现可能是“非传递性”的转移；而当两种不同状态分置于不同的边界条件之中时，地理阈值的表现可能是“过渡性”地转移。无论是非传递性转移的地理阈值，还是过渡性转移的地理阈值，都使地理系统中不可能具备唯一的、通用的或稳定的解。所谓“解”都是有条件的，都是在地理阈值约束下的解。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条