查询词典 median

An improved algorithm is presented here by applying the main idea of the improved center weighted median filter to the design of the optimal stack filter based on omnidirectional structural elements constrains.

于是在最优全方位结构元约束层叠滤波设计中引入改进的中心加权中值滤波的主要思想，得到了一种新的滤波改进算法。

The ADWM filter has the features of directional filter, which is especially effective at preserving edges, and the features of center weighted median filter, which can reduce random noise, and moderate amounts of impulsive noise also, to some extent, as well as preserve the details via adaptively determining the weight of the center pixel according to the lowest variance of pixels within all the sub-windows.

ADWM滤波器既有定向滤波器的特征，也有中心加权中值滤波器的特征。定向滤波器可以有效保持边缘，而中心加权中值滤波器对减少随机噪声尤其有效，同时也能在一定程度上减少冲击噪声的数量，并根据子窗口内像素的最低方差自适应地调整中心像素的权值以保持图像的细节。

Fifth, Applying the main idea of the improved center weighted median filter to the design of the optimal stack filter based on omnidirectional structural elements constrains, the dissertation raises a kind of improved filter algorithm for de-noising of pulse noise. The theory analysis and the simulation experiment of the image processing shows that this kind of filter can not only remove noise effectively but also keep detail of the image sufficiently.

根据最优全方位结构元约束层叠滤波器中常规中值滤波带来的图像高频细节信息的丧失，引入改进的中心加权中值滤波器，从而提出改进的最优全方位结构元约束层叠滤波新方案，实验和理论证明，它相对于最优全方位结构元约束层叠滤波方案，在滤除噪声的同时更有效保持了图像的高频细节信息。

The ADWM filter has the features of directional filter, which is especially effective at preserving edges, and th e features of center weighted median filter, which can reduce random noise , and moderate amounts of impulsive noise also, to some extent, as well as p reserve the details via adaptively determining the weight of the center pixe l according to the lowest variance of pixels within all the sub-windows.

ADWM滤波器既有定向滤波器的特征，也有中心加权中值滤波器的特征。定向滤波器可以有效保持边缘，而中心加权中值滤波器对减少随机噪声尤其有效，同时也能在一定程度上减少冲击噪声的数量，并根据子窗口内像素的最低方差自适应地调整中心像素的权值以保持图像的细节。

Sixth, Using the ability of the better keeping the image's detail of the morphological filter with omnidirectional multiple structuring elements and the ability of the strong removing noise of the improved center weighted median filter, this dissertation suggests a new kind of designing project of the hybrid filter for de-noising of pulse noise, which applied the idea of the stack filter based on omnidirectional structural elements constrains to the project.

利用全方位形态滤波的图像细节保持性能，中心加权中值滤波的噪声抑止能力和全方位结构元层叠滤波方案的并行处理思想，设计了一种新的脉冲噪声混合滤波新方案，它在滤除噪声的同时较好地保持了图像的细节部分，特别是其高频微小细节部分。

Safety engineering ; fire detection ; aspiration tube ; smoke particle ; particle loss ; median particle size

安全工程；火灾探测；吸气式管道；烟颗粒；颗粒损耗；中位径

Of 1372 (83%) infants born to HIV-infected mothers initiated exclusive breastfeeding from birth. Of 1276 infants with complete feeding data, median duration of cumulative exclusive breastfeeding was 159 days (first quartile [Q1] to third quartile [Q3], 122–174 days).

1132名婴儿从出生时接受母乳喂养。1276名有完整喂养数据的婴儿母乳喂养的平均时间是159天（四分位间距P25和P75为122和174天）。

Of 1372 (83%) infants born to HI-infected mothers initiated exclusie breastfeeding from birth. Of 1276 infants with complete feeding data, median duration of cumulatie exclusie breastfeeding was 159 days (first quartile [Q1] to third quartile [Q3], 122–174 days).

1132名婴儿从出生时接受母乳喂养。1276名有完整喂养数据的婴儿母乳喂养的平均时间是159天（四分位间距P25和P75为122和174天）。

In adjusted models, NRG-1β was independently associated with an increased risk of death or cardiac transplantation over a median follow-up of 2.4 years (adjusted hazard ratio, 1.58; 95% confidence interval, 1.04 to 2.39; P=0.03 comparing fourth versus first NRG-1β quartile).

在校正的模型中，NRG-1β与死亡风险增加或心脏移植独立相关（平均随访2.4年，NRG-1β第四分位数与第一分位数相比，校正的风险比为1.58；95% CI，1.04~2.39；P=0.03）。

Wings blackish-brown with two conspicuous ground-yellow maculae on the median cell of forewing and S-shaped outer transversal line with ground-yellow reached two-thirds of posterior margin, and hindwing with a small brownish-black spot on the center of upper and lower surfaces. Average wingspan 24.64 ± 0.58 mm (range = 20.50-28.00mm), and male adults averaged 8.56 ± 0.18 mm long (range = 7.50-9.20mm) by 3.85±0.12 mm wide (range = 3.50-4.80mm).

雄成虫，体长8.56±0.18mm(范围7.50～9.20mm)，翅展24.64±0.58mm(范围20.50～28.00mm)；触角长度不超过前翅的1／2；前翅正面由黑褐色鳞片组成翅的底色，中室端横脉内有一较大的土黄色或桔黄色斑纹，外横线明显、土黄色、从翅前缘伸至后缘呈反"s"形弯曲，到达后缘2／3处；后翅中部有黑褐色小斑。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。