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The experiments show that the proposed method outperforms the methods based on the Laplacian pyramid and discrete wavelet transform. 实验对比结果表明，该方法明显优于拉普拉斯金字塔融合算法和离散小波变换融合算法。
However, it performs a little worse compared to the conventional Discrete Wavelet Transform(DWT) for lossy compression. 而在有损压缩方面,其效果通常稍逊于传统的离散小波变换(DWT)。
A content-based watermarking model based on discrete wavelet transform (DWT) is presented. 摘要提出一种小波域基于图像内容的局部化自适应数字水印算法。
Traditional discrete wavelet transform, which is sensitive to the position of the signal, is not shiftable. 普通的离散小波变换对信号的起始位置非常敏感,不具有平移不变性。
A kind of method of two-level signature verification based on discrete wavelet transform(DWT) was introduced. 介绍了一种利用离散小波变换提取特征的二级签名认证方法。
Recently,image compression algorithms based on Discrete Wavelet Transform（DWT） emerge in plenty. 摘要近来,基于小波变换的各种压缩算法大量出现。
A novel digital watermarking scheme based on the kinoform and discrete wavelet transform (DWT) is proposed. 提出一种基于相息图和小波变换的数字水印方案。
Abstract： The discrete wavelet transform (DWT) has been applied to signal processing systems. 摘要：离散小波变换已广泛应用于信号处理中。
The work concerns with the watermarking algorithm that embed image data invisibly into a color image based on Discrete Wavelet Transform (DWT). 本文提出了一种基于离散小波变换 ( DWT)的彩色图像数字水印算法 .
For the multidirectional images, Dual-Tree Complex Wavelet Transform (DTCWT) was employed instead of the traditional Discrete Wavelet Transform (DWT). 对于多方向性的图像，使用双树复小波变换取代传统的离散小波变换。
An algorithm based on discrete wavelet transform(DWT) and wavelet packet decomposition(WPD) for speech enhancement was presented. 提出了一种基于离散小波变换(DWT)和小波包分解(WPD)的语音增强算法。
The article discusses a kind of image-based adaptive visible digital watermarking treatment technology in discrete wavelet transform (DWT). 摘要主要研究在小波变换域中，基于图像特征的自适应可见数字水印嵌入处理技术。
The paper presents a new binary watermark method based on Run Length Encoding（RLE） and Discrete Wavelet Transform（DWT）. 摘要提出了一种二值水印嵌入方案。
In the detecting step, the moving objects are segmented with the third level DWT (discrete wavelet transform) and background difference. 在检测部分，采用第三级离散小波变换和背景差分进行了目标分割。
K.C.B.Tan,Arslan.Low power embedded extension algorithm for lifting-based discrete wavelet transform in JPEG2000[J].C.Electronics letters,2001,37(25). 黄思齐，杨鲁平，刘桥.;一种适合JPEG2000的5/3离散小波变换硬件系统结构[J]
An efficient face recognition system is designed by using Discrete Wavelet Transform(DWT),Principal Component Analysis(PCA) and WMMC. 并设计了一个基于离散小波分解、主成分分析和加权最大类间边缘准则的人脸识别系统。
It can reduce the amount of computation by exploiting the decimation and keep the advantage of quasi-othogonal transform with the discrete wavelet transform(DWT). 该方案可以利用小波变换的抽取特性,降低自适应迭代的次数且保持小波准正交变换的优点。
In this paper, a lifting-based recursive algorithm (LRA) is proposed for multi-level discrete wavelet transform (DWT) by interleaving calculation of different level DWT. 提出了一种基于提升模式的递归算法实现多级离散小波变换，该算法通过交错计算各级小波变换，提高了运算效率。
Second, a new wavelet-based denoising method without free parameters is proposed which is based on the sparseness and decorrelation properties of the discrete wavelet transform. 其次，利用离散小波变换的稀疏性和减相关性进行SAR图像滤波。
The basic conception of dyadic wavelet transform is introduced The practical expression of dyadic discrete wavelet transform of digital signal is presented. 介绍了二进小波变换的基本概念,给出了数字信号二进离散小波变换的实用表达式。