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middle wavelet
相关语句
  介入子波
     An approximate reverse wavelet B~((0)) is obtained by using higher-order accumulate moments,data S is generated by S=B~((0))*S,and a middle wavelet C~((0))=(C,C~*) is obtained through using SRA arithmetic for the model S=C~((0))*r.
     利用高阶累积矩获得近似反子波B(0),再通过B(0)与地震记录S褶积生成数据S=B(0)*S,最后对模型S=C(0)*r采用统计递归算法SRA[14]得到介入子波C(0)=(C,C*).
短句来源
  “middle wavelet”译为未确定词的双语例句
     Firstly,discrete wavelet transform(DWT) was applied to one subimage extracted from the original image according to one chaotic sequence label and multiple independent chaotic watermark signals were generated and embedded into the middle wavelet frequency coefficients adaptively.
     首先根据一个混沌标签序列从原图像中抽取一子图像,并对其进行小波分解,然后将多个互相独立的混沌水印信号依次嵌入到子图像的中频小波系数中,并自适应确定嵌入强度。
短句来源
  相似匹配句对
     In the Middle
     人在中途
短句来源
     WAVELET ANALYSIS
     子波分析
短句来源
     MIDDLE WAIST
     中腰风采
短句来源
     WAVELET AND SIGNAL
     小波与信号
短句来源
     Haar wavelet can eliminate gibbs if the singularity is in the middle of the signal.
     既通过Haar小波可以消除奇异点处于中间位置时的gibbs。
短句来源
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Based on chaotic sequences and independent component analysis(ICA),a novel multilevel image watermarking method was proposed in wavelet domain.Firstly,discrete wavelet transform(DWT) was applied to one subimage extracted from the original image according to one chaotic sequence label and multiple independent chaotic watermark signals were generated and embedded into the middle wavelet frequency coefficients adaptively.The watermarking was detected according to the Newman-Pearson criterion without the original...

Based on chaotic sequences and independent component analysis(ICA),a novel multilevel image watermarking method was proposed in wavelet domain.Firstly,discrete wavelet transform(DWT) was applied to one subimage extracted from the original image according to one chaotic sequence label and multiple independent chaotic watermark signals were generated and embedded into the middle wavelet frequency coefficients adaptively.The watermarking was detected according to the Newman-Pearson criterion without the original image.Then ICA was applied to extract the watermarking if the watermarking are the original watermarking.Situational results demonstrate that this algorithm is an effective digital watermarking method with very outstanding robustness against many common attacks such as noise attacks,geometric operations and JPEG compression,and it solves the problems of multi-copyright claim in digital products.

采用混沌和独立成分分析技术,提出了一种在小波域自适应嵌入多重数字水印的算法。首先根据一个混沌标签序列从原图像中抽取一子图像,并对其进行小波分解,然后将多个互相独立的混沌水印信号依次嵌入到子图像的中频小波系数中,并自适应确定嵌入强度。根据Newman-Pearson准则检测水印是否存在,若存在,采用独立成分分析的方法提取出水印并进一步判断是否为原始水印。水印的检测与提取过程都不需要原始图像。仿真结果表明该算法对各种常见的攻击有着良好的鲁棒性,有效地解决了数字产品的多著作权问题。

In the paper,an inverse problem on mixed-phase wavelet A is discussed.An approximate reverse wavelet B~((0)) is obtained by using higher-order accumulate moments,data S is generated by S=B~((0))*S,and a middle wavelet C~((0))=(C,C~*) is obtained through using SRA arithmetic for the model S=C~((0))*r.Estimation on the true wavelet A is obtained by solution for the equation C=B~((0))*A.If the length of mixed-phase wavelet A is finite,a quite good result can be obtained by the arithmetic in the...

In the paper,an inverse problem on mixed-phase wavelet A is discussed.An approximate reverse wavelet B~((0)) is obtained by using higher-order accumulate moments,data S is generated by S=B~((0))*S,and a middle wavelet C~((0))=(C,C~*) is obtained through using SRA arithmetic for the model S=C~((0))*r.Estimation on the true wavelet A is obtained by solution for the equation C=B~((0))*A.If the length of mixed-phase wavelet A is finite,a quite good result can be obtained by the arithmetic in the paper.

笔者在文中讨论了混合相位子波A的反演问题.利用高阶累积矩获得近似反子波B(0),再通过B(0)与地震记录S褶积生成数据S=B(0)*S,最后对模型S=C(0)*r采用统计递归算法SRA[14]得到介入子波C(0)=(C,C*).真实子波A的估计通过解方程C=B(0)*A得到.如果混合相位子波A的长度有限,我们的算法可获得相当满意的结果.

 
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