查询词典 filtering

The invention relates to polytetrafluoroethylene composite film filtering materials for air filtering industry.

本发明涉及空气过滤行业用聚四氟乙烯复合膜的过滤材料。

Aiming at complicated computing and difficulty of being realized when extending single sensor PHD filtering to the multi-sensor case by means of probability generating function, a multi-sensor multi-target sequential particle-PHD tracking algorithm is proposed based on the thought of sequential filtering for a centralized fusion system. The algorithm chooses the importance density function with regard to every sensor, and updates sample particle of every sensor layer by layer.

当采用概率母函数将单传感器PHD滤波推广到多传感器情形时，针对计算繁琐，难于实现的问题，本文基于集中式融合系统的有序滤波思想，提出多传感器、多目标有序粒子PHD跟踪算法，该算法通过选取与各传感器相关的重要性密度函数，层层更新各传感器的采样粒子，达到多传感器多目标有序PHD跟踪。

There are three common personalized recommendatory technologies: information retrieval and extractor, content-based filtering and collaborative filtering, data mining and knowledge discovery.

常用的个性化服务推荐技术包括三种：信息检索与信息抽取、基于内容的过滤和协同过滤、数据挖掘与知识发现。

Thus, filtering as a regularizing operator must be performed first at one scale and filtering at different scales must be performed after the differential operation.

因此，过滤使操作员合法化一定是在一刻度方面首先履行和在不同刻度方面透入一定是在有区别运作以后履行。

Polarization filtering technique is widely used in many fields, for example interference suppression of sky wave in HF radar. Based on the actual wave data of both signal and clutter, the cause for generation of error, way of error reduction and improvement of SIR by using polarization filtering technique are discussed.

极化滤波技术在高频雷达抗天波干扰等领域有着广泛的应用，结合实际雷达测得的目标回波和干扰回波矢量数据，对极化滤波误差产生的原因、减小误差的方法以及利用极化滤波方法提高信干比的有效性进行了详细分析。

Global filtering and non-edge region filtering are employed to smooth the disparity map.

针对视差图的处理，给出了全局平滑和非边缘区域平滑两种视差图的处理方法。

On the basis of the conventional design means of DC side filtering equipments in HVDC transmission system, multi-object programming optimizing method with two objects: investment and operation fare and the constrain condition of equivalent interfering current limit is presented to get a generally optimum scheme for DC side filtering equipments including smoothing reactor, filters and capacitor at neutral bus in this paper.

本文基于高压直流输电系统直流侧滤波装置传统的设计方法，提出了以投资费用和年运行费用为目标、等效干扰电流满足标准要求为约束条件的多目标规划设计方法，对高压直流输电系统直流滤波装置(包括平波电抗器、直流滤波器、中性点冲击电容器)进行综合优化设计。

First, recursive algorithms of the state optimal filtering under various stochastic noise conditions are constructed, which widely extends the results of Rajasekaran et al, and a reversed-time optimal filtering approach is developed.

本文首先在不同噪声条件下建立了多种状态线性最优滤波递推算法，推广了Ra-jasekaran等人的结果，并推导出状态的逆向最优滤波公式。

Filtering is too slow: The solution is coupled with membrane suction pump, so as to achieve faster, more full, more complete filtering effect.

过滤太慢：解决的方法是加上吸膜泵，从而达到更快捷，更充分、更完全的过滤效果。

The basic theories of mathematical morphology for binary image are stated, and the most simple structure elements of morphologic transformation for binary images are proposed and proved. The geodetic morphologic transformation models are also developed. For the purpose of improving the speed of transformation in computer, the"set symmetric difference"is introduced to adapt each model. Some new morphologic filtering models and quantitative evaluating model of filtering effects in image processing are proposed, under the applied condition. The morphologic thinning methods are studied, and two new morphologic thinning models are developed. On the basis of analyzing the characteristics of mining maps, the image vectorizing tactics and a series of algorithms are proposed, including dynamic adaptive image thresholding using two thresholds, graphic and text separation, noise removal, and multi elements extracting models with mathematical morphology. Accuracy preserving compressed vectorizing model for image vectorization is put forward to generate vector data in multi layer.

论文对二值图象形态学的基础理论进行了较系统的阐述，提出并证明了二值图象处理中形态变换的最简单结构元素，并发展了测地形态变换模型；为了提高形态变换的计算机实现速度，引入了集合论中"对称差"的概念对各形态变换模型进行了改化；针对数学形态学在图象处理中的实际应用，提出了新的形态滤波模型及滤波效果的度量评价模型；研究了形态细化方法，提出了快速形态细化和保形快速形态细化算法；在研究矿图基本特征基础上，提出了人机协同矿图扫描图象矢量化处理策略及一系列扫描图象处理算法模型，包括双阈值动态自适应图象二值化、图文分离、噪声去除、图面多种要素提取形态变换模型等；在图象栅格—矢量转换中，提出了保精度压缩矢量化模型，以生成分层要素矢量数据。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。