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本文讨论了在应用卡尔曼窗口滤波过滤图象时,图象的过程噪声方差、测量噪声方差与点扩散函数对被恢复图象质量的影响,提出了一种选取图象过程噪声方差的方法,得出了实际选用卡尔曼窗口滤波有关参数的若干有用结果。其结论亦有助于控制、估值等其它领域的卡尔曼过滤。
In this paper, we discuss the influence of process noise variance, measurement noise variance and point spread function on the restored image quality when applying Kalman filter to filter the image. A method to select the noise variance of image process is proposed. Some useful results of the practical selection of parameters related to Kalman filter are obtained. The conclusions also help Kalman filtering in other areas such as control and valuation.