深海高清摄像系统及多金属结核图像处理与统计

摘要

A camera system in 6 000 m deep sea is developed according to the requirements on operating depth and image definition for seabed visualized technology. Polymetallic nodules are prospected and analyzed based on image processing. The underwater towed-body of camera system includes two high-definition video cameras, one camera, underwater locating device and some sensors. The signal is transmitted to the deck by optical composite cable and displaying on PC software. The image segmentation is completed based on image processing, which in-clude grey scale processing, two-valued processing and mathematical morphology. Calculate the area of polymetallic nodules in the image. The camera system in deep sea has been successfully applied into 36th Ocean voyage. The practice proves the system works stably and reliably, and. The survey of deep seabed geology were satisfactorily ful-filled.%根据海底可视化技术对工作水深和图像清晰度的要求，研制了一套6000 m级深海摄像系统；并应用该系统进行了基于图像处理的多金属结核的矿产普查分析。深海摄像系统水下拖体包括两路高清摄像机、一路照相机、水下定位装置和传感器，信号通过嵌入式系统压缩经过光电复合缆传输到甲板并显示在上位机软件。通过对图像的灰度化处理、二值化处理和数学形态学处理，完成图像的分割与修正，计算图像中某区域多金属结核的面积；该系统在大洋36航次中获得了成功应用，系统工作稳定、拍摄视频清晰度高，圆满完成深海地质调查任务。