阈值法去噪比传统的滤波去噪方法效果大有改善，尽管不能尽善尽美，但基本上能够满足工程应用的实际需要。
The threshold method is better than traditional de-noising method and can meet requests of engineering application basically, although it is not perfect.
方法运用分离分析法和多基因阈值理论进行遗传流行病学分析。
Methods: The genetic epidemiology methods are used to make segregation analysis and polygenic threshold model.
最后采用混沌优化法来获得多阈值模糊互信息分割方法的最佳阈值。
Finally, the optimal thresholds of image segmentation based on fuzzy mutual information is obtained by means of chaos optimization method.
传统信号去噪方法常采用门限法对噪声信号的小波或小波包变换做阈值处理以达到去噪的目的。
In traditional denoising methods for signals, we usually use the method of threshold to achieve denoising by the threshold disposing of wavelet packet transform.
结果：三种测量方法中，以最大值法的可靠性最高，重复性最好，对噪声的敏感性小，且不受阈值设置的影响。
Results:In the three measurements, the peak measurement method had the highest reliability, the best repetition, the least sensitivity to noise, and not to be influenced by threshold setting up.
目前纸病检测方法分为阈值法、形态学方法、灰度级统计法三类。
The test methods at present fall into three types: threshold method, morphological method and grey level statistics method.
本方法避免了整体阈值法动态范围小和传统自适应阈值法固定分区所造成的误判。
This method avoids the small dynamic range in global thresholding and misjudgement caused by fixed divided regions in adaptive thresholding.
算法在性能指标和视觉质量上均优于基于离散正交小波变换的阈值去噪方法和传统的中值滤波法。
In performance and visual quality, the algorithm is better than the wavelet denoising based on discrete orthogonal wavelet transform and the conditional median value filtering method.
目的探讨MSCT去卷积法灌注成像技术测定肝脏灌注参数的方法，初步界定其正常阈值。
Objective To explore a reliable method to measure the parameters of hepatic perfusion imaging using multislice CT(MSCT) with deconvolution method, and to set the normal threshold.
用两种不同的图像分割方法(直方图阈值法和匹配法)实现图像分割，并且对两种方法的优缺点做了比较。
We use two different image segmentation methods, histogram algorithm and match algorithm, to implement image segmentation and compare the advantage and disadvantage of two methods.
提出了用模糊判别的自动阈值法与手工补选样点修正阈值法相结合的图像分割方法，实现了对有其它植物叶片为背景的杂草图像的正确分割。
To segment leaves, as other leaves in image background, the segment method that combined auto-threshold with handwork sampling to modify segment threshold can segment accurately aim leaves.
采用改进的双阈值法和基于模型的方法进行渐变镜头的检测，根据运动向量的变化检测摄像机的运动状态。
Dual threshold and Basing on model are used to detect gradual changes, and the change of motorial vectors is used to detect the motion of the camera.
了提高CT图像的清晰度，降低伪影对医生诊断的不利影响，文章提出了一种基于小波变换和软阈值法的CT图像伪影消除方法。
To improve the clarity of CT image, and reduce the disadvantageous affect of the artifact, the article proposes a method of reducing CT image artifact based on wavelet soft threshold.
方法运用分离分析法和多基因阈值理论进行遗传流行病学分析。
Methods The genetic epidemiology methods are used to make segregation analysis and polygenic threshold model.
方法采用仪器法和手工法，对用仪器法测定不在阈值范围内的标本，即改用手工法复检。
Methods The specimen that is not in threshold detected by counter were detected repeatedly by artificial counting.
为了改善交通标志在RGB模型下的颜色分割效果，提出了一种基于三分量色差法的动态阈值分割改进方法。
To improving color segmentation effect of traffic sign under the RGB model, a method for image segmentation based on chromatic aberration was presented.
在多层阈值去噪方法的基础上，采用均值逼近法对含噪图像进行预处理。
Based on the multilevel threshold de-noising method foundation, mean value approximation (MVA) was used to pretreat the noising image.
以小波变换为基础，提出了能量阈值法，并结合自适应算术编码方法对扰动数据进行压缩，获得了较好的压缩效果。
This paper proposes an energy threshold method based on wavelet transform and has achieved fairly good compression performance by referring to adaptive arithmetic encoding.
同时，本文提出了由探针输出信号确定相份额的新方法，该方法比阈值法准确、可靠。
The methods for determining local phase fraction from the outputs of the probe were also discussed and an improved one was put forward compared with threshold method.
并在此基础上确定了自适应阈值计算方法，建立了新的阈值去噪法，可用于去除相干噪声。
And then, establish the adaptive thresholding algorithm. Thus, we get a new adaptive threshold denoising method fit for coherent noise.
为确定多层人工神经网络的权值和阈值建立了混合求解方法，即迭代前期采用BP算法，而迭代后期采用梯度优化法进行计算。
Mixed method was built to calculate the weights and thresholds of multi-layer neural network by utilize BP algorithm and terraced optimizations.
为确定多层人工神经网络的权值和阈值建立了混合求解方法，即迭代前期采用BP算法而迭代后期采用梯度优化法进行计算。
Mixed method is built to calculate the weights and thresholds of multi-layer neural network by utilize BP algorithm and terraced optimizations.
从残差中提取故障信息，实现推力器故障的检测与分离。提出采用模糊诊断方法分析残差信号，克服了阈值判断法误报率高的弱点。
Fault information was obtained by analyzing residuals with fuzzy residual evaluation, which overcome a high rate of misinformation associated with the threshold evaluation method.
研究了基于小波变换的语音去噪问题，在对传统阈值法去噪和语音特性分析基础上，提出一种改进的多阈值法语音信号去噪方法。
By Analysing speech signal and conventional denoising method of threshold, a new mult-threshold based on wavelet transform method of speech signal denoising is proposed.
结果证明，新方法兼顾了软硬阈值法的优点，去噪效果更好，信噪比更高。
The result verifies that the new method possesses both merits of hard and soft threshold methods, offers better denoising effect and higher signal to noise ratio.
针对图像背景噪声强的特点，提出了一种基于感兴趣区域(ROI)的结构光条纹中心处理方法，即在ROI内用最大类间方差法进行阈值分割再用重心法进行细化。
Aim at removing the background noise in the large measuring range system (about 2m), a method which combines Otsu based on ROI and gray barycenter method is proposed.
方法：在实验室搭建实验装置，分别利用矩形光栅法的实验装置和平板法视网膜MTF测量仪器，来测定正视眼组和屈光不正组的不同空间频率条纹分辨的阈值，算出并分析比较所测MTF值。
METHODS: Retina MTF of two groups of people with emmetropia and ametropia were measured by means of a grating and parallel plate respectively. Then the measured MTF were compared and analyzed.
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.
在超声信号波形识别和到达时刻判别上，本研究将传统的阈值法改进为高速数据全采集方法。
Compare to the traditional threshold method to distinguish the signal and detect the time, complete data sampling is adopted. And in this thesis, these follow content are introduced in detail.
在超声信号波形识别和到达时刻判别上，本研究将传统的阈值法改进为高速数据全采集方法。
Compare to the traditional threshold method to distinguish the signal and detect the time, complete data sampling is adopted. And in this thesis, these follow content are introduced in detail.
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