针对水产养殖现场监测的实际要求，研究与设计了在能见度<10 cm的低可视度水体中，可以实时观测养殖池池底底质、养殖物生长发育情况的便携式水下摄像系统。低可视度水下摄像系统通过优化摄像系统光路、增加清水仓、使用低照度CMOS摄像头、对拍摄图像进行实时后期校色等手段，增强了水下摄像机在低可视度水体中的清晰度。试验与应用结果显示：在能见度<10 cm的低可视度水体中，低可视度水下摄像系统在亮度均值、标准差、信息熵、两种无参考水下图像质量评价方法（UCIQE和UIQM）等指标全面超越普通水产检测摄像头。研究表明，养殖池深度<2m、水体能见度<10 cm时, 低可视度水下摄像系统能满足水下低可视度环境的检测。

In view of the actual requirements of on-site monitoring of aquaculture, a portable underwater camera system was studied and designed to observe the bottom quality and the growth and development of aquaculture in water with visibility less than 10cm. The underwater camera system with low visibility could enhance the clarity of underwater camera in water with low visibility by optimizing the optical path of the camera system, adding clear water tank, using low illumination CMOS camera, and correcting the color of the captured images in real time. The test and application results show that: in the water with visibility less than 10 cm, the underwater camera system with low visibility is superior to the common aquatic product inspection camera in terms of the mean brightness, standard deviation, information entropy, UCIQE, UIQM and other indicators. The research shows that when the depth of the breeding pond is less than 2m and the water visibility is less than 10cm, the underwater camera system with low visibility can meet the detection of the low visibility underwater environment.