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- Transform domain LMS adaptive filtering is widely used in time varying system. 摘要为了改善时变系统中的LMS算法收敛速度,一般可以在变换域进行自适应处理。
- Wavelet analysis has a certain effect on digital image denoising as a better method of transform domain. 小波分析是处理数字图像的一种很好的变换域方法,对去除数字图像噪声也有一定的效果。
- Based on which DCT domain and wavelet transform domain watermarking algorithm is presented. 在此基础上提出了基于人类视觉特性的离散余弦变换水印嵌入算法和离散小波变换水印嵌入算法。
- To further reduce the influence of noise, the time-domain-based channel estimation methods are also combined with IDFT transform domain technique. IDFT变换域利用多径时延集中在整个时隙的前一段的特点降低噪声。
- By the comparison, it is fact that primary factor for the transform domain coding lies in the quantizer and the entropy encoder, instead of distinguishes between DCT and DWT. 通过比较发现:实际上,基于变换域编码的主要因素在于量化器与熵编码器,而非余弦变换与小波变换的差别。
- The feature vectors obtained in wavelet transform domain are input to the perceptron to achieve the fuzzy recognition of VEP and produce brain-computer interface control signal. 在小波变换域求取特征向量,将特征向量输入感知器进行视觉诱发电位模糊识别,产生脑机接口控制信号。
- With the aim of overcoming the encoding complexity, a novel and fast neighbor codeword search algorithm for vector quantization in the Handamard transform domain was presented. 针对图像矢量量化编码的复杂性,提出了一种新颖的快速最近邻码字搜索算法。
- This algorithm utilizes the compactness property of signal energy on transform domain to reduce the searching range of codebook and speed up the quantization. 该算法利用图像信号在正交矢量空间中的能量集中性,有效地减小了码书的搜索范围,加快了矢量量化速度。
- Generalizes the typical watermarking algorithms for CAD graphic data and their merits and drawbacks in space domain, transform domain and parametric domain respectively. 按空域、变换域及参数变换分类方法,概括了目前典型的针对CAD图形数据的数字水印算法,讨论了其优缺点。
- By adjusting coefficient difference based on edge detection in wavelet transformation domain,integrative optimization of watermarking imperceptibility and robustness is implemented. 通过基于小波边缘的检测,调节系数差,实现了水印透明性和鲁棒性的综合优化。
- For the SAR raw data, the dissertation mainly discusses data compression algorithms in the transform domain, such as, algorithms based on the lifting wavelet transform or discrete cosine transform(DCT). 对于SAR原始数据,主要研究了基于变换域的压缩算法,如基于提升小波变换和基于离散余弦变换的量化与编码算法等;
- Many watermark embedding schemes in transform domain are proposed such as 2-D DFT,2-D DCT and 2-D DWT which are used to transform the image data,and 3-D DCT and 3-D DWT which are used to transform the video data and 3-D image data. 许多提出的水印方案通常把水印嵌入在变换域内,如2维的DFT域、DCT域和DWT域以及3维的DCT域、WT域。 前3个域主要被用于2维的图像载体,而后2个域主要被用于3维的视频载体和3维的图像载体。
- The high correlation between high resolution image and spectral intensity component by means of the IHS transform,makes it easy to perform images fusion in wavelet transform domain. 对多光谱图像进行IHS变换,利用变换后得到的强度分量和高分辨图像具有较强的相关性,在小波变换域进行图像融合。
- An approach is made to simplify the search procedures for optimum-excitation-selection in CELP coder by DFT (Discrete Fourier Transform); i. e. by making use of the transform domain method to simplify convolution operation. 本文研究了一种用DFT(离散傅里叶变换)简化CELP编码中最佳激励选择的搜索过程,即利用变换域法简化卷积运算。
- With distribution feature of heart sound signals in wavelet domain, an analysis method is proposed for parametric bispectrum of heart sound signals based on wavelet transform domain in this paper. 本文利用心音信号在小波域的分布特点,提出了一种基于小波变换域的参数化双谱心音信号分析方法。
- Matching error causes spectral distortion and degradation in processing of remote sensing images fusion with IHS method.Wavelet decomposition has properties of frequency division in transform domain. 遥感影像的IHS融合方法由于匹配误差导致光谱畸变和退化,而小波变换在变换域具有良好的分频特性,小波系数的统计特性反映了遥感影像的边缘、线和区域等显著特征。
- The author also examined a frontal tectionic transform domain of Parmir-west kunlun in Qimeigan region, which made it discontinous between the frontal overthrusting belt and the subsiding belt. 同时作者还在七美干一带发现帕米尔-西昆仑前缘构造转换域的存在,使得前陆冲断带和前陆沉降带横向不能连接,因而山前的构造变形呈现分阶段发育的特征。
- And then,it is expounded in detail how to filter for reducing speckle in wavelet transform domain,while the information contained in sub-band images is utilized for detection edge and texture detail. 然后详细论述了在小波变换域中如何对相干斑噪声进行有效的滤波,同时利用小波细节子图像提供的信息来检测边缘和纹理细节;
- Military history is really outside my domain. 我对军队史实在一窍不通。