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- Experimental results showed that the new method presented here was much effective in removing white noise, and gave better Peak Signal Noise Ratio (PSNR) gains than single wavelet base denoising. 实验结果表明,无论是在视觉效果上还是在峰值信噪比定量指标上该方法去噪效果均明显优于单一小波基去噪。
- Wavelet based denoising 小波去噪
- The most important thing in using CWT is to select proper wavelet base. 运用连续小波变换提取故障特征最重要的是选择合适的小波基函数。
- An Improved FRIT Denoising Method Based on Wavelet Base Vector 基于小波基向量的改进FRIT去噪方法
- Wavelet Based ECG Singnal Denoising TehnicLu Yingbei 基于小波变换心电信号去噪方法
- A new embedded zerotree wavelet based data compression method was proposed and applied to power system malfunction data compression. 摘要在小波包变换的基础上提出了一种新的基于嵌入式零树编码的数据压缩方法,并将其应用于电力系统故障数据压缩中。
- 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。
- In order to solve this problem,we introduce translation invariance for wavelet based de-noise technology in this paper. 为消除此类影响,文中将平移不变小波变换的念引入到小波图象降噪应用中。
- A wavelet based adaptive regularization scheme for blind image restoration is presented. 提出了一种将小波变换和自适应正则化方法相结合的盲图像复原算法。
- This paper presented a method of image classification using wavelet based on shape and texture. 摘要提出一种基于小波的形状和纹理联合特征的图像分类方法。
- A new method is presented to construct a kind of compactly supported biorthogonal wavelet based on human visual system. 构造了一个与人的视觉系统模型的调制转移函数相近似的紧支撑双正交小波基。
- The wavelet based wideband cross ambiguity function can be used for joint time d elay and Doppler stretch estimation. 基于小波的宽带互模糊函数可用来对宽带信号的时间延迟和多普勒伸缩进行联合估计,但它不能抑制相关高斯噪声。
- Based on the analysis of features of wavelet base, the optimum wavelet base adaptable to mutiscale analysis is determined in well logging. 根据多尺度分析方法的要求,结合实测自然伽马测井曲线的特点,通过比较选定适合该方法的最优小波基。
- The improvement of the accuracy of the wavelet based evolutionary spectrum estimation is discussed, which is based on the original work of Priestley. 在Priestley提出的基于小波分析进化谱理论基础上 ;对改进进化谱估计的性能进行了研究 .
- Though multiscale analysis is applied to logging data generally,the selection of wavelet base is not studied in detail. 多尺度分析方法在测井资料的处理中得到广泛应用,但没有对小波基的选取进行过详细研究。
- Design of lifting scheme wavelet based on multi-population genetic algorithm (GA) and ant system (AS) for effective image compression is proposed. 摘要提出了多种群遗传算法和蚂蚁算法融合的提升格式小波优化设计方法。
- The studies include development of generating system of 12-lead synchronous abnormal ECG waveform database,wavelet based QRS complex detection algorism and waveform analysis. 建立了 12导联同步心电异常波形数据库生成系统 ,并在此基础上研究了 12导联心电图实时分析与基于小波变换的QRS波自动识别算法。
- Noise Image Coding Using Soft-Threshold Based Denoising 基于软门限去噪的图象压缩编码研究
- This section briefly introduces simply edge detecting methods, the detail of wavelet based strong edge detecting method, and SUSAN corner point extracting method. 简要的介绍了常见的边缘提取方法,详细地介绍了基于小波的强边缘的提取方法,介绍了SUSAN角点提取方法;
- Based on spline functions, the wavelet base can be constructed, it has rich class and plentiful feature, as well as the fast wavelet transform algorithm. 以多项式样条为基函数能构造出种类丰富、性质各异的小波函数及其相应的快速小波变换。