During the process of statistical change detection, because t distribution is used to eliminate the effect of noise, the noise variance is not needed.
在该方法中,由于统计变化检测技术是利用t分布来有效消除噪声的影响,而不需要估计噪声的方差,而且可利用间隔为k的两帧图像代替连续两帧来进行变化检测,因此可以很好地处理关节运动和慢运动;另外,对两个连续的统计变化检测结果取交集还可以消除暴露背景的影响,并能消除大部分的残留噪声,且几乎不增加计算量,因此统计变化检测可作为视频对象分割的基础,试验结果表明,该方法不仅解决了传统的变化检测过程中的噪声、复杂运动以及暴露背景影响,而且能够自动实时地分割视频对象,以满足MPEG-4等基于对象的视频应用。
Under t distribution,it finds out the first-order and second order derivatine of the VaR in both long and short cases.
在t分布下,分别导出空头和多头套期保值风险价值关于期货量的一阶、二阶变化率,并解释其经济意义,这样就为套期者根据套期保值风险价值的敏感程度增减期货量提供指导。
Thus, we use t distribution that can reflect the characteristics of high-peaked and heavy-tailed to fit real data, and we obtain the.
从而用能反映尖峰厚尾特征的t分布进行拟合,得出上证综合指数收益率符合t3分布。
Asymptotic Distribution of Matrix t-distribution;
矩阵t－分布的渐近分布
This paper gives an approximate expression for the t-distribution on upper percentile:t α(n)≈JB(SX((4n-1) 2-25.
本文给出 t-分布上侧分位数的近似表示式tα( n)≈ ( 4 n -1 ) 2-2 5 。
New calculation and application of statistics t-distribution;
统计t分布的新计算与应用
After the review of the synthetic aperture radar(SAR) speckle filters,this paper introduces a flexible adaptive SAR filter which is based on the T-distribution and analysis of its algorithm and characters.
在对合成孔径雷达(synthetic aperture radar,SAR)滤波器的研究状况进行回顾的基础上,介绍了基于T分布的可调节斑点噪声滤波器的算法和特点,通过目视比较和定量分析,将该滤波器与Lee,Frost,Lee-Sigma,Gamma-MAP等滤波器进行了比较,结果表明该滤波器在斑点滤除和细节保留方面均取得了很好的效果。
Then,a t-distribution significance test was performed on the N temporal.
先选取包括当前帧在内的前连续2N帧图像,将奇数帧与偶数帧图像作差值,形成长度为N的帧差图像序列;对每个象素点时域上的N个帧差样本值进行t分布显著性检验,判断象素点是否发生了变化;对得到的二值图像进行形态学处理,得到完整的分割结果。
Tables for statistical distributions--t-distribution
GB/t4086.3-1983统计分布数值表t分布
The tables of quantites of the non-central t-distribution
GB/t15932-1995非中心t分布分位数表
New Multivariate Skew t Distributions Generated from Skew Pearson VII Distributions
从偏态Pearson VII分布生成的新的多元偏态t分布
Calculation of Dynamic VaR Based on the Skew Student-t Distribution of FIGARCH Model
偏态t分布下FIGARCH模型的动态VaR计算
In general, the t distribution is flatter than the normal distribution, and there is a different t distribution for every possible sample size.
一般地说，t分布比正常分布更平坦一些，对于不同的样本容易都有一个不同的相应t分布。
Factors Analysis on Shibor Overnight Offer Interest Rate Based on Skewed-t Distribution;
基于偏t分布的Shibor隔夜拆借利率影响因素分析
The Sensitivity Analysis on the Value at Risk in Futures Hedging under t Distribution;
t分布下期货套期保值VaR风险的敏感度分析
Tail Property of the Multivariate T-Distributions and the Application in Stock Market;
多元t分布的尾部性质及其在股票市场的应用
The Sytdy to Stress Regularities of Distribution of RPC Prestressed T-girder Upper Plate;
RPC预应力T梁顶板应力分布规律研究
CD62L and CD8 in the Distribution of Adenoids' T Cells
CD62L和CD8+在腺样体T细胞中的分布
The Distribution of an Avirulencegene AVRPiz-t in the Field
无毒基因AVRPiz-t的田间分布
Research on Features of Transverse Distribution of T-Beam with Mid-Minor Span,20 m Long
20m中小跨径T梁横向分布特点研究
Pattern Distributions of Sequences Based on Single-Cycle T-Function
基于单圈T-函数序列的pattern分布
The Optimum Policy T~* and Recursion Solution of the Queue-length Distribution in M/G/1 Queue System with Generalized (t,T) Policy
推广的(t,T)策略下M/G/1排队系统队长分布的递推解及最优策略
VaR Model of Interest Rate Risk upon Foreign Debt Based on T-distribution;
基于t-分布下外债利率风险的VaR度量模型
The Reliable Probability for the Independent Identical Distribution R-S(t) Series and Parallel System;
独立同分布R-S(t)串并联系统的结构可靠度
T beam horizontal laying calculation method based upon rigidness correction
基于刚度修正的T梁横向分布计算方法
Large Sample Size Property of the Root of Log Likelihood Equation for T Distribution
T分布族对数似然方程根的大样本性质