Diseased Fish Detection in the Underwater Environment Using an Improved YOLOV5 Network for Intensive Aquaculture

文献类型： 外文期刊

第一作者： Wang, Zhen

作者： Wang, Zhen;Yang, Xiao;Wen, Lingmei;Zhao, Wei;Wang, Zhen;Yang, Xiao;Wen, Lingmei;Zhao, Wei;Liu, Haolu;Zhang, Guangyue

作者机构：

关键词： real-time; epidemic prevention; algorithm; target detection; convolution kernel group

期刊名称：FISHES （ 影响因子：2.3； 五年影响因子：2.4 ）

ISSN：

年卷期： 2023 年 8 卷 3 期

页码：

收录情况： SCI

摘要： In intensive aquaculture, the real-time detection and monitoring of common infectious disease is an important basis for scientific fish epidemic prevention strategies that can effectively reduce fish mortality and economic loss. However, low-quality underwater images and low-identification targets present great challenges to diseased fish detection. To overcome these challenges, this paper proposes a diseased fish detection model, using an improved YOLOV5 network for aquaculture (DFYOLO). The specific implementation methods are as follows: (1) the C3 structure is used instead of the CSPNet structure of the YOLOV5 model to facilitate the industrial deployment of the algorithm; (2) all the 3 x 3 convolutional kernels in the backbone network are replaced by a convolutional kernel group consisting of parallel 3 x 3, 1 x 3 and 3 x 1 convolutional kernels; and (3) the convolutional block attention module is added to the YOLOV5 algorithm. Experimental results in a fishing ground showed that the DFYOLO is better than that of the original YOLOV5 network, and the average precision was improved from 94.52% to 99.38% (when the intersection over union is 0.5), for an increase of 4.86%. Therefore, the DFYOLO network can effectively detect diseased fish and is applicable in intensive aquaculture.

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