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- On the Usage of a Wavelet Coefficient Model in Noise Variance Estimation of Image 一种小波系数模型在图像噪声参数估计中的应用
- Wavelet coefficient model 小波系数模型
- As the wavelet coefficient is affected by threshold during wavelet decomposition, that is, noise is restrained, the model is closed to the deformation rule and prediction is more exact. 由于在小波分解过程中对小波系数作用于阈值，即对监测过程受到的干扰进行了消除或降低，从而使建立的预测模型更接近于变形体规律，预测更准确。
- By statistical prior model of image wavelet coefficient and iteration methods of channel capacity in the information theory,this paper derives a kind of computation method of multiply ... 通过建立小波域图像的统计先验模型和应用信息论中信道容量的迭代计算方法,给出了一类小波域图像乘性水印信道容量的数值计算方法和实验结果。
- This algorithm using wavelet coefficient to approximates the diffusion function of the nonlinear diffusion equation. 该方法用小波系数估计非线性扩散方程的扩散函数。
- In the first step the wavelet coefficients were quantized by using a psycho-acoustic model. 在步骤1中，通过心理音响学模型对小波系数进行量化。
- After stationary wavelet transform of an infrared image is done, image de-noising is implemented by fuzzy threshold processing of wavelet coefficient. 对红外图像进行平稳小波变换后，对小波系数进行模糊阈值处理实现图像去噪。
- It transforms the problem of wind field retrieval into the sparsity of wavelet coefficient, i.e. entropy function minimizing. 该方法把反演问题转化成小波系数稀疏问题，即信息熵函数最小问题。
- A wavelet exponential denoising method that the wavelet coefficient divided by exponential denoising factor is proposed. 为此，提出了小波指数降噪法，即利用指数降噪因子除小波系数。
- The PR equation of state by the Huron-Vidal mixing rule with the NRTL activity coefficient model gave satisfactory correlation and prediction results. 这些结果与建议，可提供相关工业界使用超临界流体清洗或乾燥之参考。
- Because wavelet transform is preferable to detect singular point, periodicity of distribution about striping noise in wavelet coefficient are found. 利用小波变换对信号奇异点检测的优越性，检测出条带噪声在小波系数中的周期性分布规律。
- In this paper,a coefficient model of the anisotropic diffusion based on the characteristic of human visual system(HVS) is proposed and a diffusion speed parameter is employed. 根据人类视觉系统的特性提出一个各向异性扩散系数模型,并且引进了扩散速率因子。
- In the quantization process of improved method,if the watermark point is key point,then use larger quantizing parameter Q to quantize wavelet coefficient,else use smaller Q . 与常规RRW算法不同 ;算法使用关键点信息 ;在对小波系数进行特征量化时 ;对关键点取较小的Q值 ;对非关键点取较大的Q值 .
- In this paper, we consider the non-Gaussian and dependent wavelet coefficients to develop a model, and go along the elementary denoising based on it. 本文中我们考虑到小波系数的非高斯相关性来发展模型，并以此为基础进行基本的去噪。
- In allusion to jamming or flurry happened in strapdown inertial alignment, put forward a new anti-jamming arithmetic based on the multiscale product of wavelet coefficient. 针对车载捷联导航系统初始对准中的人为或阵风干扰等问题,提出了一种基于多尺度小波系数内积的干扰信号检测算法。
- According to Donoho's method about denoising using wavelet, wavelet coefficient including striping noise is threshold treated at low and high frequency respectively. 依据小波去噪三步法，对存在条带噪声的低频和高频小波系数分别进行阈值处理。
- The sudden change of wavelet coefficient, which is transformed by radial displacement mode of axes nodes with bior wavelet, shows the axes location of damage. 对轴向节点的径向位移模态进行小波变换，小波系数的模极大值反映了损伤的轴向位置；
- By conjoining the wavelet coefficient absolute value with the local area energy, a new image fusion algorithm is proposed based on the techniques of wavelet decomposition. 摘要在小波分解的基础上，将小波系数绝对值与局部能量二个激活度量相结合，提出了一种新的小波图像融合算法。
- With the introduction of the Simha-Somcynsky(SS)equation-of-state(EOS)into the Vrentas-Duda model,a modified diffusion coefficient model based on the EOS was developed for polymer-solvent systems. 将Simha-Somcynsky状态方程引入到Vrentas-Duda扩散系数模型,建立基于状态方程的溶剂在高分子中扩散系数模型。
- Homogeneous model and three separated flow models, i.e., L-M model, Chisholm B coefficient model and Friedel model, are employed to analyze the measured pressure drop data. 最后,利用均相模型和三个两相流动模型(L-M模型,Chisholm B系数模型和Friedel模型)对微通道沿程压降进行分析和比较。
