In the new algorithm, a time-variant forgetting factor is introduced to estimate the Mean Square Er-ror (MSE) and change the updating direction of adaptive filter coefficient vector.
新算法使用时变遗忘因子对误差进行指数加权平均来估计均方误差,并使用该因子改变自适应迭代过程中滤波器系数向量的更新方向。
On the basis of the equivalence of weight vector of an adaptive filter and the eigenvector, choosing a reasonable filter expectation response, the eigenvector was estimated.
将特征向量等效为自适应滤波器的权向量,通过合理选择该滤波器期望响应递推求解出特征向量。
When coding the erroneous image by fractal vector quantization, a self-adaptive 2-d wiener digital filter to filtrate the contracted mean value image, which can result into a good quality codebook.
误差图像进行分形矢量量化编码时,使用设计的自适应二维维纳数字滤波器,对收缩的均值图像进行滤波后,可构造好的码书。
When coding the erroneous image by fractal vector quantization, a self-adaptive 2-d wiener digital filter to filtrate the contracted mean value image, which can result into a good quality codebook.
误差图像进行分形矢量量化编码时,使用设计的自适应二维维纳数字滤波器,对收缩的均值图像进行滤波后,可构造好的码书。
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