为提高数字太阳敏感器的角度测量精度，降低计算量，提高运算速度，选用矩法进行太阳成像质心的估算。
The moment method was used to estimate the centroid in a digital sun sensor to increase the angle measurement accuracy and computation speed.
在分析了本方案优点的基础上，建立了质量矩控制导弹的动力学模型，包括质心动力学和绕质心的动力学方程。
On basis of analyzing the advantages of the scheme, a dynamics model of MMTC was constructed, which includes centroid dynamics and dynamics moment equations of centroid.
然后建立去除复杂实际背景和自适应二值化的动态图象预处理模型，并根据矩法搜索和求取目标质心；
Secondly, Deleting background model and binarization model are established, and the mass center of object is searched and computed based on method of moment.
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