Measuring feeding activity of fish in RAS using computer vision

	Measuring feeding activity of fish in RAS using computer vision
	Liu, Ziyi 1,2; Li, Xian 1; Fan, Liangzhong 3; Lu, Huanda 3; Liu, Li3 ; Liu, Ying1
刊名	AQUACULTURAL ENGINEERING
	2014-05-01
卷号	60 页码:20-27
关键词	Computer vision Atlantic salmon shoal Feeding activity Recirculating aquaculture systems
通讯作者	Liu, Y (reprint author), Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China.
英文摘要	In recirculating aquaculture systems (RAS), over-feeding events impact the welfare of Atlantic salmon and the operation of the aquaculture system. This study describes a computer vision-based method for measuring the feeding activity of an Atlantic salmon (Salmo salar) shoal. The feeding motions of Atlantic salmon were recorded with a CCD camera mounted above the rearing tank. Feeding activity analysis was based on the intensity summation of the difference frame due to the motions of the fish. An overlap coefficient was defined to calibrate the error of calculation caused by the overlaps among fish bodies in images. An approach to filter out the influence of water surface reflections on preceding results was proposed. Based on these data, a computer vision-based feeding activity index (CVFAI) was determined for measuring the feeding activity of the fish in arbitrary given duration. To assess the reliability of CVFAI, a manual observation feeding activity index (MOFAI) was determined by scoring each kind of feeding behavior in the same recordings. The CVFAI and MOFAI presented a linear relationship at a correlation coefficient of 0.9195. CVFAI is therefore a potential indicator for measuring the feeding activity of an Atlantic salmon shoal, in a low-cost and rapid way. (C) 2014 Elsevier B.V. All rights reserved.
学科主题	Agriculture; Fisheries
收录类别	SCI
语种	英语
WOS记录号	WOS:000338004100004
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/24233]
专题	海洋研究所_海洋生物技术研发中心海洋研究所_实验海洋生物学重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100871, Peoples R China 3.Zhejiang Univ, Ningbo Inst Technol, Ningbo 315100, Peoples R China
推荐引用方式 GB/T 7714	Liu, Ziyi,Li, Xian,Fan, Liangzhong,et al. Measuring feeding activity of fish in RAS using computer vision[J]. AQUACULTURAL ENGINEERING,2014,60:20-27.
APA	Liu, Ziyi,Li, Xian,Fan, Liangzhong,Lu, Huanda,Liu, Li,&Liu, Ying.(2014).Measuring feeding activity of fish in RAS using computer vision.AQUACULTURAL ENGINEERING,60,20-27.
MLA	Liu, Ziyi,et al."Measuring feeding activity of fish in RAS using computer vision".AQUACULTURAL ENGINEERING 60(2014):20-27.