研究论文

利用双平行激光器法获取深海底栖生物大小及其误差分析

  • 王维波 ,
  • 何雪宝 ,
  • 靖春生 ,
  • 林辉
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  • 1.自然资源部第三海洋研究所海洋动力学研究室,福建 厦门 361005
    2.福建省海洋物理和地质过程 重点实验室,福建 厦门 361005
    3.自然资源部第三海洋研究所海洋生物多样性研究室,福建 厦门 361005
    4.自然资源部第三海洋研究所海洋生态环境预警监测研究室,福建 厦门 361005
王维波(1986-),男,安徽舒城人,助理研究员,主要从事卫星遥感和物理海洋学研究. E-mail: wangwb@tio.org.cn

收稿日期: 2022-03-08

  修回日期: 2022-06-04

  网络出版日期: 2022-09-13

基金资助

自然资源部第三海洋研究所基本科研业务(海三科2016023);全球变化与海气相互作用二期专项(GASI-01-NPAC-STsum)

Remote Measurement and Error Analysis of Deep-sea Benthic Megafauna Using Paired-Laser Photogrammetry

  • Weibo WANG ,
  • Xuebao HE ,
  • Chunsheng JING ,
  • Hui LIN
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  • 1.Ocean Dynamic Laboratory, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
    2.Fujian Provincial Key Laboratory of Marine Physical and Geological Processes, Xiamen 361005, China
    3.Laboratory of Maine Biodiversity Research, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
    4.Laboratory of Marine Ecological Environment Early Warning and Monitoring, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
WANG Weibo (1986-), male, Shucheng County, Anhui Province, Associate professor. Research areas include remote sensing and physical oceanography. E-mail: wangwb@tio.org.cn

Received date: 2022-03-08

  Revised date: 2022-06-04

  Online published: 2022-09-13

Supported by

the Scientific Research Foundation of the Third Institute of Oceanography, MNR, China(2016023);The Global Change and Air-sea Interaction II(GASI-01-NPAC-STsum)

摘要

摄像拖体是深海底栖生物调查中一个有力的新技术,具有调查范围广、持续时间长、原位无破坏等特点。已有研究较少关注自动化识别和误差分析。选取中国大洋协会第50航次太平洋摄像拖体观测图像,构建了深海生物个体形态测量方法,并对摄像拖体进行误差分析。该系统成功获取了太平洋深处12幅海参形态大小信息,观察到长达70.8 cm的绿色巨型海参。通过分析系统误差、安装误差以及观测误差发现激光器彼此不平行对观测结果影响最大。摄像托体摆动是观测中常见的误差来源,其订正方法依据理论分析获得。自动化识别和系统地分析摄像托体误差来源有利于合理得制定深海生物调查技术标准,推动深海底栖生物大范围普查。

本文引用格式

王维波 , 何雪宝 , 靖春生 , 林辉 . 利用双平行激光器法获取深海底栖生物大小及其误差分析[J]. 地球科学进展, 2022 , 37(8) : 863 -870 . DOI: 10.11867/j.issn.1001-8166.2022.046

Abstract

Image sampling of megafauna using a towed camera is immensely beneficial in deep-sea biological investigations because of the benefits of a wide investigation range, long duration, and no risk of specimen destruction. However, its automatic identification and error analysis are still understudied. A deep-sea megafauna body size measurement method was developed using towed camera observation photographs from the COMRA 50th cruise. We successfully obtained body size information of 12 sea cucumbers in the Pacific Ocean and observed a green giant sea cucumber 70.8 cm long. We examined the towed-camera system, installation, and observation errors, which imply that nonparallel lasers cause the most significant errors. A technique for correcting the inaccuracy caused by the swing of the towed camera was developed. Based on the above results, it is beneficial to logically develop the technical requirements for the examination of deep-sea megafauna with a towed camera and to encourage extensive investigation of deep-sea benthic megafauna.

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