查询词典 filtering

On one hand, in ASIC design of H.264/AVC deblocking filter, this dissertation proposes an optimized filtering order for vertical and horizontal edges grouping processing by studying the filtering edge features. In order to save inter-stage parameter buffer, it proposes the method of calculating filtering control parameters in entropy coding stage. A five-stage pipelined edge filter is presented to implement the parallel filtering and increase processing speed. And the hardware cost is efficiently decreased by optimizing shift logic of the transposer, reusing pipeline register set and optimizing the implementation of rounding operation.

一方面，本文在H.264/AVC去块滤波的ASIC设计中，通过研究滤波边界的特点，提出了优化的行列分组处理的滤波顺序；为了减少级间参数缓存，提出了在熵编/解码级就计算出滤波控制参数的方法；为了实现并行滤波和提高处理速度，设计了五级流水线边界滤波器；此外，通过优化转置单元的移位逻辑，复用流水寄存器组以及优化四舍五入运算的实现，有效地减小了硬件开销。

The filtering core is round column and welded with top and bottom covers bye anti-corrosive steel bar in wedgy section.The distance between every steel bar will be same and according to the filtering requirement.Several hoops are welded outside.So this filtering core has enough anti-deformed strength as well as high accuracy for filtering.

每个过滤元件呈圆筒状，采用楔形截面的耐蚀钢丝条与上下封焊接，每根丝条的间隔按过滤精度的要求等间隙均匀布置，在长度方向还焊有多道环箍，该滤芯不仅具有足够的搞变形的刚度和强度，而且可以严格保证过滤精度。

At first This paper formulates the necessity for depurating network information content,and introduces the history of information security and study point in information security.Also this paper analyses in detail the key technology of content filtering such as data frame capture,bridge, network protocol analysis and content analysis.And then this paper comes up with the solution for content filtering facing application layer which is based on the technology of protocol analysis and format conversion in combination with text filtering techonology of Multiple Patterns Matching..Also this paper amplifies on the design and the implement method of each module.Finally this paper introduces how the client of content filtering system manages the keywords and log and makes suggestion for the improvement of the system.

本文首先阐述了对网络信息内容净化的必要性，介绍了信息安全的发展过程以及当前信息安全方面的研究重点，详细分析了内容过滤的关键技术，如数据帧捕获、网桥、网络协议分析和内容分析等方面的技术，然后提出了在Windows2000下实现基于协议分析技术，结合多模式匹配的文本过滤技术，面向应用层的内容过滤解决方案，并给出了内容过滤引擎的详细设计以及各个模块的实现方法，最后介绍了内容过滤系统客户端对有害信息关键词和日志的管理以及对本系统改进的一些建议。

On the ground of comprehending the mechanism of fiber filtering and the characteristic of other fiber-filters,the characteristic and the function of long-fiber filtering was studied by the comparison between long-fiber filtering and sand filtering in this article.

在深入了解纤维束过滤机理和总结现有各种纤维束过滤器优缺点的基础上，通过长纤维过滤与传统石英砂过滤的对比试验，详细论述了长纤维过滤较之石英砂过滤的技术特点与性能优势。

Contains 11 commonly used in MCU software filtering methods, such as limiting filtering, arithmetic mean filtering.

详细说明：包含11中在单片机中常用的软件滤波方法，如限幅滤波，算术平均值滤波等。

Also the problems of stochastic controllability, observability and stability of the filter are studied, a simple observability criterion for the time-invariant systems is set up, error band of the filtering is given theoretically, and the filtering stability results are proved under more general conditions; besides, the filtering error caused by uncorrect mathematical models is analysed.

本文还研究了随机能控能观性及滤波的稳定性问题，建立了结构简单的平稳定常系统的能观性判据，在理论上给出了滤波算法的误差范围，在更一般的条件下证明了最优滤波算法的稳定性；并从理论上分析了模型误差对滤波产生的影响。

Aiming at the fade-out problem of the peak value existing in the traditional numerical filter after a sampling average, a filtering scheme based on the LabVIEW for the Infrared Spectrum measurement of the cellular water is proposed. A correlation algorithm responding to the filtering scheme is designed, and the filtering signal is analyzed in the time and frequency domain.

针对传统数字滤波在红外光谱细胞水分检测中采样点平均后各峰值削减的严重问题，提出了一种基于LabVIEW的滤波方案，设计了相应的相关算法，并对滤波信号进行时域和频域分析。

Aiming at the high-speed matching controlling problems between adaptive filters inplemented by FPGA and the high-speed AD converters, a high-speed sampling and adaptive filtering system was designedusing asynchronous FIFO. The dual channels AD converter AD9238-40 was used as input stage, two asynchronous FIFOs on-chip were used as high-speed buffer memory, and the sampling and adaptive filtering was controlled by FPGA. The asynchronous FIFO was customized and simulated on Quartus II, the sampling and adaptive filtering controller was designed and also simulated on Quartus II. The high-speed matching controlling of the dual channels AD converter AD9238-40 and the adaptive filter was implemented.

针对用FPGA实现的高速自适应滤波器与高速ADC数据处理速度不匹配、容易产生串扰等问题，提出了一种基于异步FIFO技术的高速采样自适应滤波系统方案，选用双通道高速AD9238-40作为前置输入级，用片内异步FIFO作高速缓存，用FPGA控制采样与滤波，给出了系统的结构框图，对异步FIFO与采样滤波控制器进行了仿真，并将异步FIFO与采样滤波控制器集成在同一FPGA上，完成了对双通道高速AD9238与自适应滤波器的高速匹配控制。

After comparing the image effect of homomorphic filtering, the effect of median filtering with different templates and the effect of binarizing with improved OTSU, the experiment results show that V groove laser image in underwater welding is preprocessed very well through such serial processing steps as homomorphic filter strenghening, median filtering, binarizing with improved OTSU, and thinning.

通过比较同态滤波前后效果、比较不同模板下的中值滤波效果、以及Otsu法改进前后的效果，实验表明，对水下焊接V型焊接坡口激光图片依次进行同态滤波增强、中值滤波、改进Otsu二值化和腐蚀细化一系列图像处理，取得了效果较理想的预处理结果。

In the process that hydronium exchanging plan deal with industry waste water or water quality intenerate,de-salt and making of high pure water,ceramics grain can be used ad colophony mat layer in reflux palingenesis fixed bed,the diameter of grainf of mat layer is 1 -32mm ,ceramics grain filtering materials also possess the effect of grain filtering materials also possess the effect of de-iron and de –manganese,and de-iron effect is over 90%,it specially fit de-iron and de-manganese in north deep well water, its operating plan is resemble with other de-iron filtering materials.

在离子交换法处理工业废水或水质软化、除盐、高纯水制取中，陶粒可在逆流再生固定床中做树脂垫层，垫层颗粒径 1 -32mm ，陶粒滤料还具有除铁除锰的作用，除铁效果在 90%以上，特别适宜于北方深井水除锰，其操作方法与其它除铁滤料相似。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。