对数变换的英文

• log-transformation
• logarithm transformation
• logarithmic transformation

• "对数"英文翻译    logarithm
• "变换"英文翻译    vary; alternate; commutation ...
• "半对数变换" 英文翻译 :    semilog transformation
• "对数变换器" 英文翻译 :    log-convertor; logarithmic converter
• "双对数变换" 英文翻译 :    log-log transformation
• "重对数变换" 英文翻译 :    loglog transformation
• "线性对数变换器" 英文翻译 :    linear-to-log converter
• "对数函数线性函数变换器" 英文翻译 :    logarithmic-to-linear converter
• "对数变幂律" 英文翻译 :    power law for wind shear
• "变数变换" 英文翻译 :    transformation of variables
• "参数变换" 英文翻译 :    parameter transformation; parameter variation; parametric transform; transformation of parameter
• "参数变换器" 英文翻译 :    parametric converter
• "代数变换" 英文翻译 :    algebraic transformation
• "函数变换" 英文翻译 :    function generation; functional tranformation; functional transformation; transformation of function
• "函数变换对" 英文翻译 :    function transform pairs; function-transform pair
• "函数变换器" 英文翻译 :    functional converter
• "基数变换" 英文翻译 :    base conversion; radix transform
• "基数变换法" 英文翻译 :    radix transformation method
• "基数变换器" 英文翻译 :    radix converter
• "级数变换" 英文翻译 :    transformation of series
• "模数变换器" 英文翻译 :    ad converter; adc
• "相数变换" 英文翻译 :    phase conversion; phase transformation
• "行数变换器" 英文翻译 :    line transformer
• "虚数变换" 英文翻译 :    imaginary transformation
• "隐函数变换" 英文翻译 :    implicit function generation

• Based on the multiplicative speckle model , a new filtering algorithm based on wavelet transform was developed . first , the multiplicative speckle noise was changed by logarithmic transform into additive noise , which simplified the subsequent speckle suppression . the speckle suppression was carried out in the process of wavelet transform of the logarithmic transformed image
  针对斑点噪声的乘性模型特点，构造了一种基于小波分析的滤波器：对sar图像进行对数变换，利用小波变换对对数图像进行滤波处理，再通过指数变换得到去噪图像。
• Wavelet transform also has time - frequency orienting ability and realize the abruption of the balanced and unbalanced component in images . this paper , based on particularly expatiating information characters in sar image data , will investigate compression algorithm applying for sar images by analyzing embedded encoding algorithms using wavelet theory . using several standards to evaluate our method and spiht algorithm , it is clear that our method outgoes spiht algorithm
  本文在对sar图像数据的信息特征进行了详细阐述的基础上，利用小波理论分析近年来比较流行嵌入式压缩编码方法，来研究适用于sar图像的压缩方法，取得以下研究成果： ( 1 )考虑到sar图像的动态范围比较大，而且sar图像斑点噪声模型大部分是乘性噪声，先对其进行对数变换，既可以缩小数据的动态范围，也可以把乘性噪声转变成加性噪声模型。