Based on the contrast between laser and backgroundintensity, 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。
2
Finally, after extracting and adjusting the spot and backgroundintensity information, data preprocessing is carried out by using the scatter plot and the ma plot.
Some factors such as oblique beam radiation and backgroundintensity variation are also further discussed. These factors can decrease the precision of measure system.