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A Multiple Video Camera System for 3D Tracking of Farmed Fry in an Aquaculture Tank

机译：在水产养殖坦克的3D追踪的多摄像机系统

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摘要

A system for the 3D tracking of underwater farmed fry using action cameras in multiple directions is presented. In a real environment, owing to light reflection and the small size of fry relative to the size of the tank, blind spots and unclear figures often appear in pictures taken by a camera. The proposed system continuously monitors the fry's figure clearly and avoids blind spots by using multiple cameras. The proposed method changes the combination of multiple viewing points from frame to frame in a movie depending on the fry's location to maintain clear fry figures and obtains the 3D coordinates of the location by the direct linear transformation. The regions of fry are sequentially obtained by taking the difference between the background image and each frame where fry appear. By taking movies of some farmed fry, we examined the tracking performance by comparing the 3D coordinates of the locations obtained by the proposed method with the correct coordinates. The mean and the standard deviation of the distance between the two points were 2.619 and 1.333 cm, respectively, i.e., it was confirmed that the proposed method can correctly capture the locations of fry because the distance was smaller than the body length of the fry.
机译：呈现了在多个方向上使用动作摄像机的水下养殖Fry 3D跟踪的系统。在一个真实的环境中，由于光反射和相对于罐的尺寸的小尺寸，盲点和不明确的数字经常出现在摄像机拍摄的照片中。建议的系统清楚地连续监控FRY的数字，并通过使用多个相机来避免盲点。所提出的方法根据FRY的位置改变电影中的多个观看点与电影中的帧的组合，以维持清除油炸物数字并通过直接线性变换获得该位置的3D坐标。通过取出背景图像和出现的每一帧之间的差异来顺序地获得Fry的区域。通过拍摄一些养殖的油炸物，我们通过比较了通过正确坐标获得的所提出的方法获得的位置的3D坐标来检查跟踪性能。两点之间距离的平均值和标准偏差分别为2.619和1.333cm，即，确认该方法可以正确地捕获油炸物的位置，因为距离小于FRY的体长。

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  • 来源
    《Sensors and materials》 |2020年第11期|3581-3594|共14页
  • 作者

    Koji Abe; Shinichiro Kuroda; Hitoshi Habe;

  • 作者单位

    Faculty of Science and Engineering Kindai University 3-4-1 Kowakae Higashiosaka Osaka 577-8502 Japan;

    Graduate School of Science and Engineering Kindai University 3-4-1 Kowakae Higashiosaka Osaka 577-8502 Japan;

    Faculty of Science and Engineering Kindai University 3-4-1 Kowakae Higashiosaka Osaka 577-8502 Japan;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    image analysis; 3D tracking; farmed fry; visualization; aquaculture;

    机译：图像分析;3D跟踪;养殖煎炸;可视化;水产养殖;

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