1)  Gray Filter
灰度滤波
2)  grayscale
灰度
1.
The Processing Brain MRI by means of asymmetrical and nonlinear mapping of Grayscale Slices;
利用灰度切片的非对称非线性映射处理颅脑MR图像
2.
To Manage Image by Grayscale Enhancement and Its Application in Image Diagnosis;
利用灰度增强处理图像以及在影像诊断中的应用
3.
Printing ink color reproduction experiments are carried out on four kinds of paper in IGT AIC2-5 tester and the paper's color repro- duction parameters are analyzed,including grayscale,color strength,hue error and color efficiency,which are recommended by GATF.
在IGT AIC2-5印刷适性仪上对4种纸张分别进行油墨色彩再现实验,并进一步测试不同油墨在这4种纸张上的灰度、色强度、色相误差和色效率,对这些油墨色彩再现性指标进行分析。
3)  gray level
灰度
1.
Fast Image Matching Algorithm Based on Gray Level;
基于灰度的图像快速匹配算法
2.
The relationship between conditions and two values of variance of gray level change and fractal dimension (PD) of SEM image of the membranes magnified 1 000 times was investigated.
按L25(56)正交试验设计制备魔芋葡甘聚糖膜,并分别研究了试验因素与水平同膜面微观形貌———SEM图像的灰度水平变化方差和Harsdorff分形维数的关系。
3.
An algorithm of reconstructing CT numbers from gray levels is presented here.
介绍一种在CT机数据格式未知情况下由视频图像的灰度重建CT数的算法。
4)  gray scale
灰度
1.
Based on the image processing technology, basic and distribution feature of the paper's gray scale image have been studied.
应用图像处理技术研究了纸张灰度图像的基本特征和分布特征,结果表明纸张的灰度数值是随机的,质量好的纸张灰度分布范围小,且灰度值较高;应用图像灰度分析技术可有效地提取出纸病的特征。
2.
Methods Sixty-one normal livers(Normal Liver Group)and fifty-six fatty livers(Fatty Liver Group)were studied and histogram was used to analyse the mean gray scale of the liver parenchyma(LPGS)and the mean gray scale of the hepatic vein(HVGS).
方法用直方图分析了61例正常肝脏和56例脂肪肝的肝实质平均灰度值(LPGS)和肝静平均灰度值(HVGS),并用下面公式计算肝脏相对回声强度(REI),REI=(HVGS/LPGS)。
3.
By quantifying the gray scale on the location of carcinoma and the borderline of the fluorescence image,the fluorescence pixels and the true location of carcinoma were calibrated,and the quality of the fluorescence image of carcinoma was reflected objectively.
量化不同时刻代表肿瘤病灶信息的荧光图像灰度及肿瘤边缘像素点灰度等重要参数,配准肿瘤组织和荧光像素点,客观反映肿瘤荧光图像的质量。
5)  Gray
灰度
1.
The design of a gray-shade modulation circuit for FED;
FED平板显示器灰度调制电路的设计
2.
Realization of Gray Bitmap Processing in Visual C++6.0 Environment;
基于VC6.0的灰度位图处理的实现
3.
Study on 3D Recongstruction Techniques Based on the Gray Information of Image;
基于图像灰度信息的三维重构技术研究
6)  grey degree
灰度
1.
The article summarizes several definitions of grey degree,and gives a new one based on grey whitening weight function.
依据对现有几种灰数灰度的定义分析总结,提出了一种新的基于灰色白化权函数的灰度。
2.
The objects under evaluation may have some uncertainties and different quantity and sufficiency of information,which makes the subjection degree,the degree that the objects attributed to some evaluation and corresponding grey degree are no more a certain number but usually a range.
由于被评判对象有时会带有某些不确定性以及信息量的多少及充分程度不同,使得这些对象在某些评判指标上属于某个评语的程度-隶属度及其对应的灰度不再是一个确定的数,常常是一个范围,针对此特点,尝试用区间值来表示灰度。
3.
Aiming at the characteristics of the objects under evaluation and based on the theory of grey fuzzy set,we tried to represent membership degree by the interval numbers,and to present the grey fuzzy set by combining membership degree with grey degree.
针对被评判对象的特点,根据灰色模型数学的理论,尝试用区间数来表示隶属度,并将隶属度和灰度综合起来表示灰色模型数,在此基础上建立了区间数灰色模糊综合评判的数学模型,并给出了它在方案优选中的应用,实例表明能使评判结果更加客观可信。
参考词条
补充资料:波数字滤波器
      由两端终接电阻负载的无源LC梯形滤波器导出的一种数字滤波器结构。应用双线性变换S=k(1-Z-1)/(1+Z-1)可将用波参数描述的无源元件,实现为数字元件。表1列出了无源元件R、C、L及其对应的由延时单元、乘法器和加法器构成的数字元件。
  
  
  通常高阶递归型数字滤波器的级联型或并联型有产生极限环振荡的危险。此外,在输入信号非常小时,由于舍入误差的高度相关,也可能导致数字滤波器的不稳定而产生固定振荡。1971年,提出波数字滤波器的伪无源性概念,并论证了这种数字滤波器的低灵敏度特性。波数字滤波器具有良好的稳定性,可以用较短的系数字长实现,有良好的动态范围,不会出现极限环振荡(即在环路情况下应用也不会出现任何杂散振荡)。这种数字滤波器特别适用于通信系统。
  
  在波数字滤波器结构中,用波参数描述的元件,在联接时必须遵从端口间阻抗匹配的原则。相应地,数字元件之间的联接按其为串联或并联分别采用由乘法器和加法器构成的串联适配器或并联适配器匹配联接。适配器符号及其对应的联接关系见表2。图为三阶椭圆型低通LC 梯形滤波器及其等效的波数字滤波器。  波数字滤波器的另一种结构称为波格型数字滤波器,是由对称型或格型无源LC 滤波器导出的。
  
  

参考书目
   A. Antonious, Digital Filter : Analysis and Design,McGraw-Hill Co.,New York,1979.
  

说明:补充资料仅用于学习参考,请勿用于其它任何用途。