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。
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.
在微分谱分析模块中采用了迭代技术求全谱本底，称之为逐次淹没法。
For seeking after background spectrum, an iterative technique called gradual annihilation method is used in the module for analysis of differential spectrum.
在微分谱分析模块中采用了迭代技术求全谱本底，称之为逐次淹没法。
For seeking after background spectrum, an iterative technique called gradual annihilation method is used in the module for analysis of differential spectrum.
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