Multibeam images of a fish farm

This dataset consists of Images produced from a Seapix-R multibeam echosounder (MBES) pointed at a fish farming cage. The MBES was attached outside the cage on a mounting bracket with a 45 deg downwards tilt, such that most of the cage was within the vertical beamforming capability of the system, with the exception of a small cake-shaped section near the net, 1.5 meters high, extending 5.5 meters into the cageThe MBES can steer acoustic beams at angles of $120^\circ \times 120^\circ$ and operates at a frequency range of 145-155 kHz. The beam aperture of the Seapix-R is 1.6 times 1.6 degreees on the element axis. The dataset was obtained during one data collection event. The trial was conducted at a Lingelaks site in Bergadalen, Norway. The data capture started at 09:22 on April 15 2021, during daylight hours and outside the routine feeding schedule, ensuring minimal disturbances and deviations in behavioural patterns. The range of each image is from 0 to 10 m. The tilt of the swath is 55 deg. The image is captured in the vertical direction.Backscatter in the images is caused by atlantic salmon swimming in the cage.

搜集汇总

背景与挑战

背景概述

该数据集包含使用Seapix-R多波束回声测深仪（MBES）对鱼养殖网箱采集的图像，主要用于检测网箱内大西洋鲑鱼的活动。数据采集于2021年4月15日在挪威的Lingelaks站点进行，技术参数包括工作频率145-155 kHz、图像范围0-10米和倾斜角55度，采集时间选在非喂食时段以最小化行为干扰，适用于水产养殖行为研究。