再提取

At first, preprocessing with the image pyramid and diffusion-filtering technology; then abstracting the boundary-outline information; carrying on the logarithmic coordinate transformation of the abstracted boundary-outline information to get bar chart of the logarithmic coordinate; calculating the value of Cs to get all the phase match points; calculating the value of the degree of approximation to judge the shape matching.

本发明涉及一种基于Shape Context的人脸形状匹配方法，首先采用图像金字塔及扩散滤波技术进行预处理；再利用Canny边缘检测算法和轮廓提取算法提取边界轮廓信息；对提取的边界信息进行对数极坐标变换，得到对数极坐标直方图；通过计算Cs值，获得所有相匹配点；计算相近似度值，进行形状匹配判断。

At first, the area of the mouth is segmented by using the value vertical and horizontal projection of red pixel.

首先，采用红色像素点进行水平和垂直投影的方法对嘴唇进行区域分割，然后再利用边缘提取和红色像素点提取相结合的方法对嘴唇进行提取，此方法可以有效地去除嘴唇周围的阴影干扰和其它干扰，完整地将嘴唇从原图中分割提取出来。

Method］α-amylase was used to extract starch from cassava residues, and the extracting solution was mixed with cassava flour to ferment alcohol. And the influences on extraction yield of solid-to-liquid ratio, insulated time during liquation, pH value, and use level of enzyme were investigated.

方法］利用α-淀粉酶对木薯渣中残余淀粉进行提取，再将提取液与木薯粉混合进行发酵酒精试验，主要考察固液比、液化保温时间、液化pH值、液化酶用量等因素对提取得率的影响。

With regard to CAD modeling in reverse engineering, some key techniques, including feature extraction from point cloud and parametric representation, are studied.

本文针对反求工程CAD建模路线：从点云提取特征曲面，再进行曲面参数化CAD造型过程中非常关键的步骤——特征提取进行了深入研究，着重研究了二次曲面特征的提取，并对点云中的全局特征约束优化技术进行了有益的探索。

The orthogonal test design was used to arrange sequent experiments to test the effect of the four main factors,i.e.,consistency of ethanol,times of reflux,extraction time and temperature on the concrete yield of Lysimachia foenum graecum Hance,and to establish the optimal extraction conditions.

用 L9(34 )正交设计法进行灵香草浸膏的提取试验，研究乙醇浓度、提取温度、提取时间、回流次数对浸膏得率的影响，确定提取灵香草浸膏的最佳条件后，再对所得粗产品进行脱色试验，优选出粗浸膏脱色的最佳条件。

The free fatty acids were extracted with petroleum ether and were separated on silicon gel column chromatography. The ethyl acetate-soluble lipid fraction and water-soluble lipid fraction were subjected to hydrochloric acid-catalyzed methanolysis, then were extracted with petroleum ether, respectively.

用石油醚提取低极性组分，经硅胶柱层析分离得到游离脂肪酸；用乙酸乙酯提取酯溶性神经酰胺及其衍生脂类，提取物和残余的水溶性脂类分别经盐酸甲醇解，水解产物再用石油醚提取。

The results for rubber seed oil refining were as follows: For the crude solvent-extracted oil, it was first degummed 20 min by 0.04% H3PO4 at 60℃, and neutralized 10 min by 0.15% CaCO_3, then treated with 5% bleaching clay, and refined oil could be obtained. For the machine-squeezed oil, it was first degummed 20 min by 0.04% H3PO4 at 90℃, and neutralized 10 min by 0.15% CaCO3, then treated with 15% bleaching clay, and refined oil could be obtained.

橡胶籽油精炼结果表明：溶剂尤其是以石油醚等提取毛油的色泽最好；溶剂提取毛油在60℃下、0.04%的H_3PO4(含量为85%)、20min脱胶和0.15%的CaCO3中和搅拌10min后，再在20min、油重5%白土脱胶脱色较好；机榨毛油在90℃下、0.04%的H3PO4(含量为85%)、20min脱胶和0.15%的CaCO3中和搅拌10min后，再在20min、油重15%白土脱胶脱色的精炼机榨油次之。

An oncomelania killer is prepared through preparing mother liquid A from hydrochloric acid or 50 wettable powder of nicotinani line sul fate and dechlorinated water , preparing method liquid B from raw powder extracted from Huangqieguo fruit or bardabosnut seed and dechlorinated water , proportionally mixing them together and adding dechlorinated water for different concentrations .

灭钉螺剂及其生产方法，是将盐酸或硫酸烟酰苯胺50％可湿性粉剂加去氯水配成母液，再将由黄茄果果实提取的原粉或由麻风树籽提取的原粉加去氯水配成母液，将两母液按比例混合再加不同量的去氯水配成不同浓度的灭钉螺剂。

It is not difficult to extract simple information such as road lane mark and the relative position of vehicle on the road from the machine vision sensor, so we have made some improvement on the lane mark identification and tracking technology including using a method based on Zernike Moment line detection algorithm, and then use lane mark features to extract the lane marking feature point, and use linear regression method to extract lane mark parameters.

因为在本文研究中通过机器视觉传感器提取的信息相对比较简单，只是提取公路的车道标识线以及车辆在车道中的相对位置，所以改进了基于机器视觉的车道探测方法，包括文中采用了基于Zemike矩的直线检测算法，然后利用车道标识线特征提取出图像中的车道标识线特征点，再采用线性回归的方法提取出车道标识线参数。

Yanowitz algorithm which interpolates the image grey by gradient imformation. Then it can get water meter frame information by horizontal and vertical projection, and extract line by improved Hough transform. Finally, the image can be corrected by affine transform.

Yanowitz算法，能够很好的分割目标和背景；再利用水平和竖直投影提取水表表框信息；然后再利用改进的Hough变换提取表框范围内直线，对结果进行统计分析，求出水表的倾斜角度；最后采用逆仿射变换的方法，对表框图像进行双线性插值旋转，得到表框的矫正图像。

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。