水下激光扫描成像系统及其在冷泉研究中的应用  

A SUBMARINE IMAGING AND LASER PROFILING SYSTEM AND ITS APPLICATION TO COLD SEEP SITE INVESTIGATION OFF SOUTHWESTERN TAIWAN

作　　者：王冰[1] 宋永东 杜增丰[1] 李超伦[1,2] 张建兴 杨慧良 栾振东[1,3] 张鑫[1,2,3] 连超 阎军[1] WANG Bing;SONG Yongdong;DU Zengfeng;LI Chaolun;ZHANG Jianxing;YANG Huiliang;LUAN Zhendong;ZHANG Xin;LIAN Chao;YAN Jun(Key Laboratory of Marine Geology and Environment Center of Deep Sea Research,Institute of Oceanology,Chinese Academy of Sciences,Qingdao,266071,China;University of Chinese Academy of Sciences,Beijing 101408,China;Laboratory for Marine Geology,Pilot National Laboratory for Marine Science and Technology,Qingdao 266237,China;Qingdao Institute of Marine Geology,China Geological Survey,Qingdao 266071,China)

机构地区：[1]中国科学院海洋研究所地质室海洋地质与环境重点实验室,深海极端环境与生命研究中心,青岛266071 [2]中国科学院大学,北京100049 [3]青岛海洋科学与技术国家试点实验室,海洋地质过程于环境功能实验室,青岛266237 [4]中国地质调查局青岛海洋地质研究所,青岛266071

出　　处：《海洋地质前沿》2019年第11期60-65,共6页Marine Geology Frontiers

基　　金：中国科学院先导专项项目子课题(XDA19060402,XDA22050502);科技部科技基础资源调查专项课题(2017FY100801)

摘　　要：利用深潜器及其搭载光学设备获得重点调查区的高分辨率影像资料是深远海调查的重要内容,对于研究冷泉、热液等特殊海底环境及其生态系统的组成、空间规模、分布特征以及演化规律具有重要意义。主要介绍了搭载于"发现"ROV的4500m级L1000型图像和激光扫描系统及其应用实例。利用该系统拍摄并带有位置信息的海底高清照片,首次获得了台西南冷泉区的高清全幅海底拼接图像,并根据该拼接图像对台西南冷泉区的海底特征、空间分布规律和规模进行了直观分析和量化研究,有效地提高了我国深远海近海底测绘的能力。Submarine vehicles(SVs)have been widely used in marine investigations that have greatly enhanced the human ability to explore the deep ocean.High quality videos and photos obtained with cameras mounted on SVs are essential data of submarine investigations for the time being since they may provide indispensable information for the study of hydrothermal and cold seep systems.In this paper,a Remotely Operated Vehicle(ROV)"Faxian",equipped with a 4500-m-rated L1000 Imaging and Laser Profiling system designed and supplied by Cathx Ocean Ltd was introduced and applied at the Taiwan Ridge for cold seep site investigation,The imaging and profiling system includes a M12 L1000 Dual Mode Laser Profiler Camera and an Aphos 16(S16)110 VAC LED light and a DGL300 Green Line Laser.This system was fastened to the bottom of"Faxian"and was pointed downward at the seafloor.In 2016,more than 300 thousand seafloor images of the cold seep site with coordinate information were collected covering an area of around 20000 m2 in about 30 hours with a imaging frequency of 3 images per second.A high-definition panoramic image covering the most part of the cold seep site was finally achieved by merging all the georeferenced photos.Based on this panoramic image,seabed features and the scales and distribution patterns of these features were analyzed.The installation and successful application of the imaging and laser profiling system will significantly enhance our ability to explore the deep oceans.

关 键 词：海底高清拼接图像 激光扫描成像系统 台西南冷泉 ROV 

分 类 号：P234.4[天文地球—摄影测量与遥感]