haar造句

• Fast reconstruction method for curve based on haar wavelet decomposition
  小波分解的快速曲线重构
• Optical implementation of haar edge wavelet and extraction of image feature
  子波的光学实现及图像边特征提取
• Continuous time system robust identification based on haar wavelet method
  小波变换的连续时间系统鲁棒参数辨识
• Baire and haar measure
  贝利与哈尔测度
• Research of nonlinear image noise removal based on haar wavelet multiresolution analysis
  小波多分辨分析非线性图像消噪的研究
• Application of haar wavelet on analysis of vibration signal of rotating machinery in fast run - up state
  旋转机械高速启动过程振动信号分析方法的研究
• The martingale analysis in the multiresolution analysis under the haar scaling function and its application in the signal processing
  尺度函数下多分辨分析的鞅性及其在信号处理中的应用
• Ter haar gr , rivers ih , chen l , et al . high intensity focused ultrasound for the treatment of rat tumor [ j ] . phy med biol , 1991 , 36 : 1495
  谢红宁.超声引导下瘤内无水乙注射治疗子宫肌瘤的初步研究[ j ] .中国实用妇科与产科杂志, 2000 , 16 ( 4 ) : 225
• The experts in engineering , especially in engineering expect that the compact support wavelets are real , orthogonal and symmetric . in fact , no such a wavelet , except the wavelet haar , is found
  工程界使用的小波一般而言是实值的紧支正交对称或反对称的，这有很多好处，尤其在数字图像的边界处理中。
• Secondly , in the feature extraction stage , haar 2 - d wavelet transform is used in each band of the normalized image . the mean values and variances of the coefficients of 7 main wavelet channels are extracted as features
  该算法通过对归一化处理后虹膜图像的各个小分割区域进行二维小波变换,提取出主要小波通道的小波系数均值和方差作为特征值。
• Two face detection methods are proposed in our prototype system , they are base on skin color model in hsv chrominance space and haar - like feature . the face recognition approach that we proposed involves the use of embedded hidden markov models
  在人脸检测环节，本文采用了两种方案：基于肤色特征的camshift算法和基于局部haar特征的算法；识别环节采用基于嵌入式隐马尔可夫模型( embeddedhmm )的算法。
• ( 4 ) after reduced noise by the hardware circuit , ccd signal enter dsp where the signal is converted from analog to digital . then its noise is reduced again by median filtering . and then the location of test line is identified by wavelet of haar
  ( 4 ) ccd信号经硬件电路降噪处理后，进入dsp进行a / d转换、中值滤波二次降噪、 haar小波变换提取测试线位置等处理后，最终得到测试信号的o . d . (光密度)值。
• At last , combining the related knowledge of wavelet theory and hidden markov models , we introduce wavelet transformation for nonparametric estimation of hmm ' s and discuss how to choose resolving scale of haar - wavelet orthogonal series " estimation
  最后，结合小波理论和隐马尔科夫模型的相关知识，将小波变换应用到隐马尔科夫模型非参数估计问题中来，并探讨了其中haar小波正交级数估计量分解尺度的选取。
• This thesis makes a fairly in - depth study on the basic techniques about the current svc algorithms by reading a lot of relevant references , including the svc system schemes and the techniques of various scalabilities . based on these knowledge , motion compensated temporal filtering ( mctf ) which is an effective method to eliminate temporal redundancy is researched , and mctf based on db2 wavelet is presented by studying the method of mctf using haar wavelet . the simulation proves that the low - pass frame is better than the haar one , it means that the temporal scalability is improved
  在此基础上,本文研究了在时间可伸缩性中采用的一种有效方法:运动补偿时域滤波( mctf )技术,并借鉴haar小波进行运动补偿时域的方法,研究并实现了基于db2小波的运动补偿时域滤波方法,仿真结果表明该方法比基于haar小波的方法得到了更高质量的低通帧,这也意味着在时间可伸缩性的处理上有了进一步的改善。
• But , though considerable process has been made in the last ten years , digital watermarking is still in its infancy , and much interesting work remains to be done this thesis addresses some problems in the gray - scale image digital watermarking that are summarized below : 1 ) whereas the basic theory of digital watermarking is still very poor , a digital watermarking mathematic model based on imperceptibility and robustness is presented by analysising the characteristic of digital watermarking ; 2 ) based on the model constructed above , by defining the measures of capacity and robustness of digital watermarking , an objective method for evaluating the digital watermarking is introduced and used to analysis some algorithms ; 3 ) whereas geometric distortion always influences the restoration of watermark , we advocate to enhance the robustness against geometric distortion by restoring the image which has been distorted by geometric transformation , and a method is designed for estimating the parameters of geometric transformation ; 4 ) based on the conclusion discussed above , and combined with the masking effects of hvs , a novel public meaningful gray - scale image digital watermarking is designed by analysising the characteristics of image gray - scale interpolation and haar wavelet transformation . the experimental results show that the method is indeed powerful ; 5 ) whereas many image digital watermarking schemes , which embed watermark by modifying the values of pixels in spatial domain and transformed domain , are confronted with the conflict between the imperceptibility and robustness , we advocated to use some stable digital characteristics of host image as watermark and a algorithm based on hermite matrix is designed
  本文重点对灰度图象数字水印技术进行研究，主要工作如下： 1 )鉴于目前数字水印的理论研究比较薄弱的现状，本文通过分析数字水印的特点，建立了一个数字水印的数学模型，为进一步研究数字水印打下了基础； 2 )根据以上建立的模型，通过引入容量和稳健度的概念为数字水印提供了一个客观评价方法，并对一些数字水印算法进行了分析； 3 )为增强数字水印抵抗几何攻击的能力，研究了受几何攻击的图象的复原问题，并给出了一个计算图象几何变换参数的方法； 4 )通过分析图象灰度插值算法和haar小波变换的特点，结合hvs的掩蔽效应，设计了一个公开的有意义数字水印算法，实验结果表明本算法具有较强的稳健性； 5 )目前许多水印算法都是通过在空域或频域修改象素值的方法嵌入水印的，这种方法面临着透明性和稳健性的矛盾，为解决这个矛盾，本文提出以图象的某些稳定的数字特征为水印的观点，并结合hermite矩阵的特点设计了相应的水印算法，实验结果表明该算法具有较好的稳健性。
• We study the design of haar wavelet for scale = a ( a2 ) and present a decomposition and reconstruction algorithm in chapter 3 . secondly , in chapter 4 we study the design of orthonormal mutiwavelets of multiplicity r with scale = a ( a2 ) . by the factorization theory , we give parametric expressions for orthonormal causal fir multifilter banks of r = 2 and scale = 4 , and we found the length of scaling function can be controlled by the parameters . finally , we provide the error analysis between discrete multiwavelet transform coefficients and continue multiwavelet transform coefficients
  由于多小波变换系数的计算是直接与其预滤波方式相联系的，而在单小波变换系数计算中之所以能由近似表示就是因为尺度函数具有低通特性和平移正交性，由此我们研究了能满足以上要求的预滤波，并对离散小波变换系数和连续小波变换系数之间的差异作了分析，从误差分析结果我们可以预见：为了减少误差我们可以通过对预滤波的进一步设计来控制。
• The experimental results manifest that the psnr of both the full reconstructed video sequences and the ones of frame rates changed are improved compared to the system base on haar wavelet . moreover , the decoding time of db2 filters is shorter than the haar one , the shorter the decoding time , the better the real - time displaying in the client side
  实验结果表明,本系统与基于haar小波的可伸缩性视频编解码系统相比,完全重建的视频图像质量和帧速率改变后的重建视频图像质量都有了明显的提高,并且解码时间也有所缩短,具备了更好的实时性。
• We construct weak classifier by a haar feature ; then weak classifiers are combined to a strong classifier in a linear way . the final classifier is built in a cascade structure , which could reject most non - face samples in the early layer . also we use integral image to quickly calculate the feature and reduce the detection time
  本文以简单的haar特征结合阈值构造弱分类器，通过adaboost学习选择和集成弱分类器，最后按照分层结构把集成的分类器组合在一起；同时，在检测过程中采用积分图的方法计算特征，保证了检测的速度。
• And by far , most theories of wavelet analysis are established in , but this method is rare to be known and exists defects in the reproducing kernel space with good properties . then in the reproducing kernel space , isometric isomorphism of relation is founded between and by differential operator . and starting from the haar basis , multi - resolution analysis inis gived by folding method ; then multi - resolution analysis and orthonormal wavelet in are obtained through integral transform from to . then the reproducing kernel space can be expressed by wavelet spaces
  于是，在再生核空间中，利用积分算子建立了空间与hilbert空间的等距同构关系；并且从haar小波出发，由折叠法实现的空间中多尺度分析通过积分变换得到中多尺度分析和正交小波，使得再生核空间可以由小波空间来刻划；从而对空间中的函数，给出了小波逼近具体表达式和相应的采样公式，形式简单易于数值分析。
• Where several mother wavelet functions were used to expand a function , it also can be seen as vector - valued wavelets that satisfy conditions in which matrics are involved . the main works of this paper are as follows : firstly , although haar function has bad vanish property in frequency domain , it is the only normal orthonormal basis with symmetry and real short - support property
  首先，讨论了对于尺度函数，相应的母小波构成空间的标准正交基的充要条件，提出了构造a尺度母小波的算法，从理论上研究a尺度haar小波基的构造，提出了分解与重构公式，并对如何构造具有对称性的a尺度haar小波基进行了探讨。