ftf meaning in Chinese
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- ( 2 ) presenting audio watermark blind detecting based on fast transverse filter ( ftf ) adaptive algorithm
( 2 )提出了基于快速横向滤波( ftf )自适应盲检测水印算法。 - Franchised training facilities ( ftf ) , is a training school or training center , who joins anka by providing lctc in its territory , by way of franchising with anka
什么是"加盟培训设施" ( ftf )呢?另外培训机构或培训中心通过加盟安卡,在她的专有区域内,提供lctc培训课程 - In order to solve the three problems above , we present a new watermark - detecting algorithm based on ftf . we can make use of adaptive filter principle to detect watermark blindly
为解决以上三个问题,本文提出了一种基于快速横向滤波自适应盲检测水印算法,利用了自适应滤波器的原理进行水印的盲检测。 - It is a pop method to embed watermark in frequency field , in most literature , they embed watermark into the coefficients of fft , dct , or high - frequency of dwt using quantization method , we think that : embedding watermark into the low - frequency of audio signal dwt field can improve the robustness of watermark . the watermark is embedded in the maximum of subsection of approximate component the watermark signal using quantization method , for the same quantization size , the “ noise ” added to the signal is
在频率域嵌入水印信息,是目前一种主流的嵌入算法,在很多文献中,都是通过量化音频信号的ftf系数, dct系数,或者是dwt域的高频系数。我们认为:在小波域内的近似分量(低频系数)中嵌入水印能够提高数字水印的鲁棒性,通过量化嵌入水印的方法,将水印嵌入到近似分量中每个分段中最大值上,因为这样对于同一个量化步长,量化对象的幅值越大,所叠加的“噪声”就越小,从而提高了数字水印的不可感知性。