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- discrete wavelet translation 离散小波变换
- translation invariant discrete wavelet transform 平移不变离散小波变换
- 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。
- LBT costs 38% computation as the discrete wavelet based , and only buffers 1/15 data that DWT does. 该算法中LBT所需的存储开销不到DWT的1/15,计算量仅为DWT的38%25,基函数长度适中。
- 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)。
- Only keeping the local maxima, the Gaussian function is used to fit the wavelet coefficients directly, then inverse wavelet translation is used to reconstruct signal. 在只保留这些局部模极大值(即边缘)点信息的条件下,利用高斯函数直接拟合各级小波系数,然后再作小波逆变换就可恢复原信号。
- 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。
- Considering robustness of watermark, we choice low frequency Coefficients of DWT(Discrete Wavelet Transformation) to embed black and white watermark. 出于鲁棒性考虑,我们对图像进行小波变换,选择在小波域的低频系数中嵌入二值水印。
- 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。
- A new generation of geostationary JPEG2000 image compression standard of discrete wavelet transform (DWT) as its core technology transformation. 用VC写的一个小波正反变换.;新一代静止图像压缩标准JPEG2000将离散小波变换(DWT)作为其核心变换技术