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transform packets transform 小波包变换
We presented a novel watermarking method based on wavelet packets transform and human visual system (HVS). 摘要提出一种基于人类视觉特性和小波包分解的数字水印算法。
We presented a novel watermarking method based on wavelet packets transform and human visual system(HVS). 提出一种基于人类视觉特性和小波包分解的数字水印算法。
The wavelet packet transform can be used to compress seismic data in large batch processing. 在大批量地震数据处理中可以使用小波包变换压缩地震数据。
The theory of wavelet packet transform and the method of voltage signal analysis with wavelet packet was presented. 简述了小波包变换的基本原理及利用小波包对电压信号进行分解的方法。
It is based on a combination of frequency shifts with the undecimated wavelet packet transform. 该算法是将频移与非抽取小波包变换结合起来的一种方法。
A method is proposed for segmenting MR brain images using the best wavelet packet transform，and the eigenvectors are come into using the energy of wavelet packets’ coefficients. 摘要提出应用最优小波包变换对磁共振颅脑图像做分解，以各子带小波包系数的能量形成纹理特征集；
WPT-BAYES(combination of wavelet packet transform and Bayes) method can improve its recognition accuracy to 98%. 采用WPT-BAYES(小波包变换-贝叶斯)方法,可以大幅度提高识别精度,其正确识别率高达98%25以上,满足使用要求。
A method to simulate fatigue stress history based on the wavelet packet transform, a special branch of the theory of wavelet analysis was presented. 采用小波分析理论中的小波包变换 ;提出了一种基于小波分析的模拟疲劳应力的方法 .
The quality of the noise removal was improved by combining wavelet packet transform with latent variable regression (LVR). 该法结合小波包变换和潜变量回归改进除噪质量。
The quality of the noise removal was improved by combining wavelet packet transform with latent variable regression (VLR). 该法结合小波包变换和潜变量回归改进除噪质量。通过最佳化,选择了小波函数及小波包分解水平(L)。
An image denosing method which combine wavelet packet transform with median filter used in the system of the online measuring of pellets diameters was presented. 提出了一种将小波包变换和中值滤波相结合的球团矿图像去噪方法。
In this paper, a method of feature extraction of ultrasonic flaw echo signals is introduced, which is based on the theory of multilevel wavelet packet transform. 文章介绍了一种基于小波包变换的多尺度空间能量特征提取方法，并对实测的超声缺陷回波信号进行了特征提取；
A feature extraction method of high-range-resolution radar profiles, which takes advantage of wavelet packet transform and modified SVD(singular value decomposition) was proposed. 提出了基于小波包变换和改进奇异值分解的高分辨雷达目标一维距离像特征提取方法。
Thus it proposes the BP neural network fault diagnosis algorithm based on the incompletion wavelet packet transform and energy normalization as preprocessors. 提出了一种基于不完全小波包变换和能量归一化作为预处理的模拟电路故障诊断的BP网络算法。
In this article, local discriminant basis (LDB) algorithm based on wavelet packet transform (WPT) is utilized to implement feature extraction and emitters recognition. 本文基于小波包变换,采用局部判别基(LDB)方法进行辐射源信号特征提取与识别。
A wavelet packet transform latent variable regression (WPLVR) method was developed to perform simultaneous quantitative analysis of biphynel, phenol, o-dihydroxybenzene. 采用小波包变换潜变量回归(WPLVR)方法,同时测定联苯、苯酚和邻苯二酚。
In this paper, we present a new remote sensing image fusion method based on IHST and Wavelet Packet Transform (WPT) to fusion a multi-spectral image and a panchromatic image. 针对多光谱图像与全色图像的融合,提出了基于IHS变换和小波包变换的遥感图像融合新方法。
A new adaptive narrowband interference(single/multiple tone)rejection method based on wavelet packet transform(WPT)in DSSS systems is presented in this paper. 本文提出一种基于小波包变换的直接序列扩频通信窄带(单、多音)干扰抑制技术。
Although both wavelet transform (WT) and wavelet packet transform (WPT) can be used, WPT is advantageous as it offers better partial characteristics with the same threshold. 小波变换能将各种交织在一起的由不同频率组成的混合信号分解成不同频段的信号，检测出许多其他分析方法忽略的信号特性，因此小波变换常被用于表面肌电信号处理。