以下为句子列表：
英文: Using square error function and the barycenter algorithm of light intensity as the merit function of focusing and alignment respectively, the system analyzed the images captured by charge coupled device (CCD) in the projection screen to produce feedback s
中文: 该系统运用数字图像处理技术，以方差函数和光强重心算法分别作为清晰度调节和三色和色调节的评价函数，分析电荷藕合器件(CCD)采集的局部图像，产生反馈信号。
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