However, the error of the optical flow estimation derived from the error of temporal differential estimation is not taken into account in above methods.
通过位移预补偿方式减小了时域微分估计中的不准确性，极大地提高了光流计算精度。
2
The factors, which introduce the error of temporal differential estimation are, analyzed. The successive approximation calculation model for the optical flow estimation is put forward.
分析了光流计算中产生时域微分估计误差的各种因素，提出了光流的逐次逼近计算模型。
3
By making use of the temporal correlation of the moisture changes, estimation and prediction might be achieved with satisfying accuracy.