特别是对阈值去噪方法,提出了一种基于正交小波变换和自适应学习算法的噪声抑制方法。
Especially to threshold de-noising, a method based on orthogonal wavelet analysis and self-adaptive learning algorithm was proposed here.
对于宽带噪声干扰,本文研究了小波包阈值方法,并将之应用到信号域和图像域来抑制宽带噪声干扰。
For wideband noise interferences, this dissertation studies wavelet packet threshold method and USES it to suppress wideband noise interferences in signal domain and image domain.
该文提出了一种新的基于视觉侧抑制模型和连通域统计的阈值图像分割算法。
This paper proposes a novel algorithm about image segmentation based on the vision lateral inhibition model and statistics of consecutive fields.
研究结果表明:基于EWC阈值法的复小波变换能够有效地抑制GIS特高频PD信号中的周期性窄带干扰。
The results show that the EWC threshold method of complex wavelet transform can effectively suppress the periodic narrowband interference from GIS UHF PD signals.
该诱发反应具有反应阈值高、潜伏期长、反应形式复杂、后作用时间长、可被静脉注射吗啡抑制等特点。
The evoked responses have the specificities with higher threshold, longer latency, complex reactive patterns, and being inhibited by the action of morphine.
通过基于梯度直方图来选取双阈值,最后进行基于双阈值的非极大值抑制,得到边缘检测的图像。
Based on the gradient histogram, the double thresholds can be found. At last, non-maximum suppression based on double thresholds is used to detect the edge.
该算法首先通过设置平台阈值对背景的增强进行抑制,然后将直方图在灰度密度和灰度间距两个方向进行均衡处理。
At first, the image background is suppressed by setting a threshold. Then, both gray density and gray interval of the histogram are equalized.
试验表明,本文方法与传统的阈值去噪方法相比在抑制震荡的同时能显著地提高信噪比。
Numerical experiments show that our new method can significantly improve the signal-to-noise rate while depressing Pseudo-Gibbs phenomena.
研究了相干斑噪声抑制技术,提出了(1)增强小波软阈值相干斑噪声抑制方法。
This paper studies the technology of speckle noise suppressing and proposes two new methods. The first one is to enhance wavelet soft-threshold for speckle noise suppressing (1).
结果:养肝利胆颗粒能明显抑制小鼠耳肿胀度和大鼠足跖肿胀,可对抗醋酸致小鼠扭体反应,提高小鼠对热的痛阈值,可缓解乙酰胆碱致离体胆囊痉挛作用。
The effect of YGLDG on relieving pain was tested by counting body twisting induced by glacial acetic acid and measuring the latent period of licking hind foot with the hot plate method in mice.
对醋酸致小鼠扭体反应有明显的抑制作用,可提高小鼠热痛阈值。
Tongluozhitong ointment had obvious inhibit effect on acetic acid induced mouse writhing and could heighten hot-pain threshold of mouse.
图像的平移不变量小波去噪法是小波收缩阈值去噪法的改进,能够有效抑制小波阈值去噪过程中出现的伪吉布斯现象。
Translation invariant(TI)wavelet de-noising method is an improved method of wavelet thresholding shrinks; it can suppress Pseudo-Gibbs artifacts effectively.
结果表明,该药对甲醛致小鼠痛反应有明显抑制,对小鼠热板前阈值显著提高;
The results indicated that this medicine obviously inhibited pain response caused by formaldehyde and significantly raised hot plate pain threshold value;
最后,运用小波阈值去噪法对两个系统的实验信号进行了分析,结果表明该方法对提高信噪比,抑制噪声具有一定的作用。
Finally, wavelet threshold de-noising method was used to analyze the experimental signal of the two systems. The results showed this method can make some de-noising effect.
实验结果表明:分离越严重,来流速度越大,有效抑制翼型失速分离的阈值电压越大;
Experimental results indicate that the threshold voltage becomes higher as the inflow velocity becomes higher and the flow separation becomes more serious.
GQ显著抑制小鼠醋酸诱导的扭体反应和甲醛性疼痛,大剂量时,能提高小鼠热板痛阈值。
The writhing induced by acetic acid and the pain caused by formaldehyde were inhibited significantly, but the pain threshold was enhanced by GQ only at high dose in hot-plate test in mice.
GQ显著抑制小鼠醋酸诱导的扭体反应和甲醛性疼痛,大剂量时,能提高小鼠热板痛阈值。
The writhing induced by acetic acid and the pain caused by formaldehyde were inhibited significantly, but the pain threshold was enhanced by GQ only at high dose in hot-plate test in mice.
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