Studies the function of wavelet transform (WT) that can effectively distill the transient characteristics of digital signals to estimate the symbol rate of PSK signals.
研究基于小波变换有效提取信号瞬变特性的功能，对数字调制移相键控(PSK)信号进行符号速率估计。
Aiming at a common copy-paste forgery in the research field of digital image forensics, this paper proposes a detection approach based on wavelet transform and singular value decomposition.
针对数字图像取证中一类常见的复制粘贴图像伪造，本文提出了一种基于小波变换和奇异值分解的检测算法。
According to the characteristics of PDF417 and the lifting wavelet transform, a digital image watermark algorithm based on PDF417 and lifting wavelet is proposed in this paper.
根据PDF417与提升小波变换的特点，提出一种基于PDF417和提升小波变换的数字图像水印算法。
The wavelet transform filter and infinite impulse response (IIR) digital filter is applied, and the output signals of the three filters are compared.
此外，本文还对陀螺信号进行了小波变换滤波和IIR数字滤波器滤波并对上述三种方法的滤波性能进行了对比分析。
The purpose of this paper is to develop a segmentation algorithm for digital image sequence based on spatiotemporal continuous wavelet transform(CWT).
从运动分析的角度出发，对所研究的图像序列，提出了一种基于空域—时域连续小波变换（CWT）的模糊分割算法。
The strategy of segment transform and the whole wavelet coefficients modification is adopted to improve the robustness of the digital watermark.
采纳分段变换及整体修改策略，增强了数字水印嵌入的稳定性；
An efficient implementation of the discrete form of the wavelet transform on digital signal processors (DSPs) is especially interesting for the analysis of real time signals.
在实时信号分析中，离散小波变换在DSP上的有效应用受到了特别的关注。
There are so many digital watermark algorithms at present. The typical examples are the airspace algorithm, transform domain algorithm, wavelet domain algorithm and beyond wavelets algorithm.
目前已出现多种数字水印算法，典型的水印算法有空域算法、变换域算法、小波域算法、超小波域算法等。
In this paper, a digital image blind watermarking algorithm is proposed based on neighboring relation in wavelet transform domain which can detect watermarking without using the original image.
阐述了水印算法的实现过程，提出了一种基于邻近关系的小波域数字图像盲水印算法，该算法在水印检测过程中不需要原始图像。
The relation between the digital watermarking and spread-spectrum was analyzed at first, A spread-spectrum adaptive digital watermarking scheme based on the wavelet transform was proposed.
在分析了自适应小波变换和扩频特性关系的基础上，提出一种基于小波变换的扩频数字水印算法。
Threshold de-noising based on wavelet transform which is proposed to determine the decomposition order adaptively is an efficient method to reduce the white noise in the digital signal.
在对带白噪声信号的小波变换特性分析的基础上，基于自相关函数的白噪声检验方法，提出了一种确定小波分解层数的自适应算法。
The digital wat remark technique based on a wavelet transform is a method for protecting multi media video data, belonging to the multi media signal processing area.
本发明涉及一种基于小波变换的数字水印技术，是一种多媒体视频数据保护方法，属于多媒体信号处理领域。
The digital wat remark technique based on a wavelet transform is a method for protecting multi media video data, belonging to the multi media signal processing area.
本发明涉及一种基于小波变换的数字水印技术，是一种多媒体视频数据保护方法，属于多媒体信号处理领域。
应用推荐