haar中文什么意思

例句与用法

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1. 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。
2. 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。
3. 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。
4. 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。
5. 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。