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滤波器     
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  filter
    An Adaptive Linear-Phase Filter with Recursive Sequence Algorithm
    序列递归自适应线性相位滤波器
短句来源
    Minimum Average Correlation Energy Filter Using Circular Harmonic Expansion
    用圆谐展开的最小平均相关能量滤波器
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    MOTION ESTIMATION FROM A LONG SEQUENCE OF IMAGES USING NONLINEAR KALMAN FILTER
    基于非线性Kalman滤波器的长序列图像运动估计
短句来源
    secondly , (3,1) biorthogonal spline wavelet was used as the primitive wavelet filter, adopting lifting scheme to build the most superior biorthogonal wavelet filter, and applying the superior biorthogonal wavelet to the multiresolution wavelet edge detection;
    其次,选择(3,1)双正交样条小波作为原始小波滤波器,采用提升方案构造最优双正交小波滤波器,应用构造的双正交小波进行多尺度小波边缘检测;
短句来源
    Through the experiment,the R wave detection rate was up to 99.5%,which is better than those on artificial neural network and linear filter.
    通过实验表明,Holter的R波检测率达到99.5%,相对于基于人工神经网络、线性滤波器等方法要好;
短句来源
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  filters
    Pascal-Transform-Based Implementation of Exponential-Type Filters
    指数型滤波器实现的Pascal变换方法
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    CAD of Suspended Microstrip Interdigital Filters
    悬置微带交指带通滤波器的CAD设计
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    To improve the limitation of Mean Shift lacks method of template update,an algorithm of template update based a group of Kalman filters is proposed.
    针对Mean Shift算法缺乏必要的模板更新方法的缺陷,提出了一种基于卡尔曼滤波器组的Mean Shift模板更新算法。
短句来源
    DESIGN AND APPLICATION OF MULTI-SCALE DIFFERENTIAL FILTERS
    多尺度微分滤波器的构造与应用
短句来源
    FILTERS WITH ARS SOFTWARE APPLIED EXPANSIVELY TO CDSN`S STATIONS
    ARS软件滤波器在CDSN台站中的扩展应用
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更多       
  wave filter
    Implementation of Image Wave Filter By C + + Builder
    用C++ Builder实现图像滤波器
短句来源
    A new improved Canny arithmetic is used for actual application as key technology. It smooth image with gauss wave filter and calculate grads' amplitude value and direction with two rank partial derivative's finite difference.
    在关键的边缘提取技术上,本文根据实际情况改进了Canny算子,它采用最优高斯滤波器平滑图像,用二阶偏导的有限差分来计算梯度的幅值(?)
短句来源
    The weighting card consists of wave filter, measured signal amplifier, pedestal generator, integrator, zero calibralor, pulse generator, register, and controller.
    称重卡由滤波器、被测信号放大器、基准电压放大器、积分器、零器、脉冲发生器、计数器、控制器组成。
短句来源
  “滤波器”译为未确定词的双语例句
    Kalman Filter-Based Algorithm for Recovery of Dynamical Scene Structure in Motion Vision
    基于Kalman滤波器运动视觉景物结构复原算法
短句来源
    Computer Aided Analysis on Second-Order Active Filters -Study the Effects of Q Value on the amplitude-frequency characteristic of a 2nd-order Lowpass Active
    计算机对二阶有源滤波器的辅助分析—研究Q值对二阶低通有源滤波器幅频特性的影响
短句来源
    In this paper, we present a novel fast algorithm for edit detection in video parsing. The algorithm utilizes the bit cost in I frame, P frame, B frame and the feature of MPEG coding.
    本文提出一种新的快速视频分割方法,使用MPEG流的I帧、P帧、B帧的编码代价,结合MPEG 编码的特点与原理,使用一个适合I帧、P帧、B帧编码代价向量的波形特点的滤波器,来检测突然以及逐渐变化的视频编辑。
    Simulated Design of Active-filter through PSPICE Software Package
    采用PSPICE软件包仿真设计有源滤波器
短句来源
    Image Contrast Enhancement by Wavelet Based Homomorphic Filtering
    基于小波的同态滤波器用于图像对比度增强
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  filter
We characterize the wavelet multipliers, as well as the scaling function multipliers and low pass filter multipliers.
      
For compactly supported gm, n (FIR filter banks) we prove an exponential rate of convergence and derive explicit expressions for the involved constants.
      
This, in turn, is used for designing local orthogonal bases obtained by unitary transformations of a single prototype filter.
      
This in turn, is used for designing local orthogonal bases obtained by unitary transformations of a single prototype filter.
      
The measure for uncertainty is a product of two factors evaluating the frequency selectivity in comparison with the ideal filter and the effective length of the filter in the digital domain, respectively.
      
更多          
  filters
The main purpose of this paper is to give a procedure to "mollify" the low-pass filters of a large number of Minimally Supported Frequency (MSF) wavelets so that the smoother functions obtained in this way are also low-pass filters for an MRA.
      
This phenomena is related to the invariant cycles under the transformation We also give a characterization of all low-pass filters for MSF wavelets.
      
The main purpose of this paper is to give a procedure to "mollify" the low-pass filters of a large number ofMinimally Supported Frequency (MSF) wavelets so that the smoother functions obtained in this way are also low-pass filters for an MRA.
      
We also give a characterization of all low-pass filters for MSF wavelets.
      
Unitary mappings between multiresolution analyses of L2 (R) and a parametrization of low-pass filters
      
更多          
  wave filter
Robust autopilot with wave filter for ship steering
      
A ship's dynamic model with wave disturbances was built and a wave filter was designed by means of an extended states observer (ESO).
      
According to ZBJ65015-89 standard about noise level testing method of woodworking tool, the noise testing for MJ90# and MJC1125 precision panel saws was conducted by using model ND2 precision sound-level apparatus and double frequency wave filter.
      
Our data on the spectral absorbance of the lens and visual pigment of these fishes suggest that the lens pigmentation acts as a short-wave filter to improve acuity of the visual system.
      
Pipelining the unconstrained three-port wave filter adaptor at the bit level
      
更多          
  washout filters
Both employ discrete-time washoutfilters to ensure preservation of the size and shape of the limit cycle.Washout filters ensure that the nominal operating branch is unaffectedby the control, without the need for accurate knowledge of the limitcycle.
      


To obtain the tomograph of body tissues by ultrasonic echoes and then to improve the quality of images by digital processing method is one of the important techniques of medical diagnosis. The digital processing methods of ultrasonic medical images are reviewed in this paper. (a), Digital filtering technique. The accumulative average, low-pass, high-pass, notch filtering and band-pass of the medical ultrasonic informations may be realized by linear digital filters. The real time processing can be realized by...

To obtain the tomograph of body tissues by ultrasonic echoes and then to improve the quality of images by digital processing method is one of the important techniques of medical diagnosis. The digital processing methods of ultrasonic medical images are reviewed in this paper. (a), Digital filtering technique. The accumulative average, low-pass, high-pass, notch filtering and band-pass of the medical ultrasonic informations may be realized by linear digital filters. The real time processing can be realized by using the Discrete Fourier Transformation (DFT) and the Fast Fourier Transformation(FFT). The distortion of the ultrasonic informations produced by the filtering effect of the body tissues may be corrected by inverse filtering or deconvolution. Algorithm with "template" is a convenient and flexible method. In addition, non-linear filtering technique such as homomorphic filters may also be used to improve the quality of the images. (b), Image enhancement technique. Histogram equalization, non-linear stretching, interpolation, pseudo-coloring methods etc. may be used for image-enhancement. In addition, it is possible to raise the diagnostic precision by using the edge detection and contour tracing methods. (c), Ultrasonic Computerized-Tomograph (UCT). This is a new ultrasonic image processing method. While still in the laboratory stage, it calls for close attention.

利用超声回波作人体组织的断层显象并用数字处理方法提高成象质量是诊断医学的重要技术之一。本文综述了超声图象的数字处理方法。(一)数字滤波技术。采用线性数字滤波器可以实现对超声图象信息的累加平均、低通、高通、陷波和精通。采用离散宫氏变换(DFT)及快速富氏变换(FFT)可进行实时处理。应用反滤波或反卷积可以使超声信息受人体组织作用产生的畸变得到校正。采用模板运算是一种方便、灵活的方法。此外,还可以采用如同形态滤波器等非线性滤波技术来改善图象质量。(二)图象增强技术。可以采用直方图均衡、非线性伸展、内插补技术、伪着色等方法以增强图象。此外还可以采用边沿测量及轮廓追述的方法来提高确诊率。(三)应用计算机的超声断层显象。这是一种新的超声图象处理方法,尚在实验室研究阶段,但值得重视。

In this article several kinds of spatial filters fabricated by the method of computer hologram are introduced. These spatial filters are used in contrast inversion and differential processing of image. Their characteristics are discussed with additive experimental results.

本文介绍几种用计算全息方法制作的空间滤波器,这些空间滤波器用作图象的反差倒转和微分处理,文中讨论了它们的特性并附实验结果.

By means of two-dimensional differentiation processing, the image periphery can be made to stick out and the image contour to be extracted. The principle of a two-dimensional optical differentiation processing together with the preparation of filter and the experimental results of differentiation processing are given.

图象的二维微分处理可以突出图象边缘,抽取出图象的轮廓.本文叙述了二维光学微分处理的原理、滤波器的制作以及微分处理的实验结果.

 
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