donoho meaning in English
多诺霍
Examples
- Donoho and johnstone proposed a new way to denoise the noisy signal and images : “ wavelet shrinkage ”
Donoho和johnstone在1992年提出了“小波收缩”方法。 - 2 ) proposed a de - noise method based on wavelet packet coefficient shrinkage . the resolution of the method is finer than that of the method based on wavelet shrinkage in time domain and frequency domain
2 )基于donoho阈值去噪方法，给出了一种时频分辨率更高的小波包分解系数收缩的去噪方法。 - Appropriate threshold and threshold function should be selected to fit the signal process goal when the method is applied . 3 ) developed a de - noise method based on translation invariance wavelet transform . the method performed the cycle - spinning for the signal to be de - noised
3 )针对donoho阈值去噪方法对小波基的平移依赖性而在信号奇异点产生的pseudo - gibbs现象，给出了一种平移不变小波变换去噪方法。 - The time - frequency of the wavelet transform and the signal wavelet decomposition - reconstruction algorithm based on the multi - resolution analysis are analyzed . the signal local singularity under the wavelet transform are studied . the difference between between mallat ' s maximun modulus algorithm and donoho ' s waveshrink algorithm are analyzed , too . the denoise effect of different threshold and threshold function are studied . base on compare the advantage and disadvantage of donoho & johnstone threshold and believing - region threshold , a modified algorithm is developed : combining threshold distinguishing and shield filter method
讨论了基于mallat理论最大模数方法以及基于donoho理论的阈值萎缩去噪方法的差别，研究比较了不同阈值规则与阈值函数对去噪效果的影响；在此基础上，结合统一阈值和置信区间阈值各自的优缺点，提出阈值判别和屏蔽滤波相结合的方法。 - Output can be obtain , next we use our designed the wavelet soft threshold to select result of the wavelet transform , finally , we give the selected result reversal wavelet transform . it is obvious : the wavelet soft threshold is important to improve the quality of the gray image processing . . i give the donoho wavelet soft threshold a modified value method , which has a relation with ratio of signal - noise . i made full use of discrete hop field single feedback neural network , and nonlinear steady of automatic system at last , i obtained a steady limited ring , give the energy function an order differential a optimal
我的思路是：改造现有图形结构，先建立能反映信噪比大小且含待定参数k的表达式，然后通过离散型h0pfi旧单层反馈神经网络，再结合前边的混合滤波器构成一个非线性控制系统，写出对应的网络函数，利用相平面法和李雅普诺大稳定性的判据，得到一个稳定的极限环，从而确定出参数卜的范围，进而再对原来的小波软阈值进行修正，用修正后的值作为小波阈值。