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距离选通方式是脉冲激光水下成像系统中用于抑制水介质强烈后向散射 ,提高系统的作用距离和成像质量的主要方法和手段。利用数字相机作为成像设备 ,脉冲激光作为光源 ,对这一方式进行了对比研究 ,证明了距离选通的作用。并针对实验系统中数字相机成像部件 CCD容易饱和的特点 ,提出了相应解决办法。
The distance gating method is the main method and means for suppressing the strong backscattering of the aqueous medium and improving the system operating distance and imaging quality in the pulsed laser underwater imaging system. Using a digital camera as an imaging device and a pulsed laser as a light source, a comparative study of this method was conducted, demonstrating the effect of distance gating. And for the experimental system digital camera CCD imaging components easy to saturate the characteristics of the corresponding solutions.