利用水下摄影测量技术测量鱼类体长的可行性研究  

Feasibility of measurement of fish body length using underwater photogrammetry

作　　者：王振宇 张国胜 包林 邢柱普 庄鑫 殷雷明 王羿宁 邢彬彬 张治平 王喜风 WANG Zhen-yu;ZHANG G u o -sheng;BAO lin;X l N G Zhu-pu;Z H U A N G X i n;Y l N Lei-m i n g;WANG Y i-ning;XlNG Bin-bin;Z H A N G Zhi-ping;W A N G X i-feng(College of Marine Science and Environment, Dalian Ocean Lniversity , Dalian 116023, China;Teaching Quality Monitoring and Protection Cen-ter ,Dalian Ocean Lniversity , Dalian 116023, China;China National Fisheries Corporation, Beijing 100160, China;Xinjiang Trout Technology Research Center, Bole 833400, China)

机构地区：[1]大连海洋大学海洋科技与环境学院,辽宁大连116023 [2]大连海洋大学教学质量监控与保障中心,辽宁大连116023 [3]中国水产有限公司,北京100160 [4]新疆鲑鳟鱼工程技术研究中心,新疆博乐833400

出　　处：《大连海洋大学学报》2018年第2期251-257,共7页Journal of Dalian Ocean University

基　　金：新疆冷水鱼产业关键技术研发集成与示范(2017B01004-3)

摘　　要：为研究用水下摄影测量系统测量鱼类体长的可行性,选取15尾大泷六线鱼Hexagrammos otakii作为研究对象,利用摄影测量系统测量鱼体体长并与人工实测数据进行对比。结果表明:摄影系统测量和人工测量两种测量方式测定出的数据相关系数为0.933(P=0.003);二者的相对误差范围为2.1%~18.1%,绝对误差范围为2.9~33.0 mm。研究表明,摄影测量鱼体长度与人工测量相比,测量结果存在一定误差,主要原因是鱼体控制点的提取较为困难,而人工测量本身也存在一定误差,因此,该摄影测量系统适用于水下测量鱼类体长。In present study,body length was measured in 15 individuals of fat greenling Hexagrammos otakii by an underwater photogrammetry system,in which a 3 d photogrammetric system was reconstructed via the calibration of distortion of the camera itself and the complex refraction of light in underwater environment,and compared with the body length measured manually to evaluate the feasibility of the fish length measurement using the underwater photogrammetry system. The results showed that the correlation coefficient of 0. 933 was found between the values of body length measured by the underwater photogrammetry system and the body length measured manually,with significant difference of 0.003,relative error of 2.1%-18.1%,and absolute error of 2.9-33.0 mm. Manual measurement the measurement of fish body. There was error in body length measured by the underwater phogogrammetry system compared with the fish body length measured manually,which is primarily derived from the difficulty in fish control points extraction,and the certain error in manual measurement. The findings indicate that the underwater photogrammetry system can be used in measurement of fish body length even though it has some errors.

关 键 词：摄影测量 内部参数 大泷六线鱼 体长 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]