对最大类间方差法的改进主要表现在两个方面：建立阈值的评价准则和提高算法的运行速度。
The improvement in Ostu algorithm is represented in two aspects: establishing evaluation rules of segmentation threshold and accelerating the algorithm's operation.
二是在端点检测上进行了算法改进，分别采用了动态窗长及零能积差的阈值判决法。
Second, the end of the algorithm to improve the detection, long and dynamic Windows were used to zero threshold from poor judgment algorithms.
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.
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.
首先使用改进了的像素匹配二次差分法结合双阈值法进行镜头突变和渐变的检测，然后对镜头内的帧间距离进行判断来提取关键帧；
The pixel-matching two-difference algorithm and two histogram comparison are used for shot detection, a method of extraction shot key frame based on distance of adjacent frame is presented.
本文通过灰度域带宽的自适应选取和阈值法区域合并的结合，提出对均值漂移图像分割算法的改进方案。
Through the combination of adaptive gray scale bandwidth and threshold-based region mergence, we proposed a novel modified scheme of mean shift algorithm.
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.
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.
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.
提出了基于多窗谱法和小波阈值法对带噪语音的短时功率谱进行估计的语音增强改进方法。
In theory of estimation with wavelet thresholding, the threshold adapting data can be calculated by minimum estimation of risk to improve the SNR of estimation.
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。
This paper introduces the application of wavelet transformation in speech signal denoising, describes in detail the method of soft threshold and hard threshold and points out their disadvantages.
综合考虑均值法和中值法在处理噪声类型上的不同，提出了一种基于简单阈值的改进型中值法。
An improved median filtering based on a simple threshold is introduced by considering the difference in the noise disposal of the averaging method and the median filtering.
针对基于小波阈值理论提出的云区阈值法存在的容易产生边界效应的问题，提出了一种改进的单幅图像去除薄云的新算法。
Because the algorithm of cloud threshold often generates boundary effect, this paper proposed an improved algorithm based on wavelet transform and homomorphic filter.
针对基于小波阈值理论提出的云区阈值法存在的容易产生边界效应的问题，提出了一种改进的单幅图像去除薄云的新算法。
Because the algorithm of cloud threshold often generates boundary effect, this paper proposed an improved algorithm based on wavelet transform and homomorphic filter.
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