Based on the contrast between laser and background intensity, warning is carried out through laser target detection algorithm.

利用激光和背景强度之间的反差，通过激光目标检测算法进行告警。

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Finally, after extracting and adjusting the spot and background intensity information, data preprocessing is carried out by using the scatter plot and the ma plot.

最后，在数据提取方面，对基因芯片图像的靶点信号强度与背景信号强度进行了提取与校正，并且运用散点图与MA图对数据进行了预处理。

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Some factors such as oblique beam radiation and background intensity variation are also further discussed. These factors can decrease the precision of measure system.

讨论了斜光束照射、背景光强变化等因素，这些因素降低了系统的测量精度。

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