In order to remove the residual noise which can not be smoothed by filter, the smoothingcoefficient and constrain coefficient were used to threshold the gradient image.
为了消除噪声残留，引入了平滑系数与限制强度系数对梯度图作阈值化处理。
2
The coefficient of exponential smoothing has been proved in the prediction of the coal output in our country.
并将优化后的指数平滑系数在我国煤炭产量的预测中得以验证。
3
Furthermroe, we provide an exponent smoothing method for automatically choosing the smooth coefficient. The effect is validated by the prediction examples.