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DOI: 10.14569/IJACSA.2020.0110733
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Classification of Freshwater Zooplankton by Pre-trained Convolutional Neural Network in Underwater Microscopy

Author 1: Song Hong
Author 2: Syed Raza Mehdi
Author 3: Hui Huang
Author 4: Kamran Shahani
Author 5: Yangfang Zhang
Author 6: Junaidullah
Author 7: Kazim Raza
Author 8: Mushtaq Ali Khan

International Journal of Advanced Computer Science and Applications(IJACSA), Volume 11 Issue 7, 2020.

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Abstract: Zooplankton is enormously diverse and fundamental group of microorganisms that exists in almost every freshwater body, determining its ecology and play a vital role in food chain. Considering the significance of zooplankton, the study of freshwater zooplankton is very essential which intensely relies on the classification of images. However, the routine manual analysis and classification is laborious, time consuming and expensive, and poses a significant challenge to experts. Thus, for recent decade much research is focused on the development of underwater imaging technologies and intelligent classification system of zooplankton. This work presents devotion to observation of freshwater zooplankton by designed underwater microscope and modeling the system for automatic classification among four different taxa. Unlike most of the existing zooplankton image classification systems, this model is trained on a comparatively small dataset collected from freshwater by designed underwater microscope. Transfer learning of pre-trained AlexNet Convolutional Neural Network (CNN) model proved to be a potential approach in the system design. Among four networks trained over two datasets, the best overall classification accuracy of up to 93.1%, comparable to other existing systems was achieved on test dataset (92.5% for Calanoid and Cyclopoid (Female), 90% for Cyclopoid (Male) and 97.5% for Daphnia). Graphical User Interface (GUI) of the model constructed on MATLAB, makes it easy for the users to collect images for building database, train network and to classify images of different taxa. Moreover, the designed system is adaptable to the addition of more classes in the future.

Keywords: AlexNet; automatic image classification; Convolutional Neural Networks (CNN); freshwater zooplankton; transfer learning; underwater microscope

Song Hong, Syed Raza Mehdi, Hui Huang, Kamran Shahani, Yangfang Zhang, Junaidullah, Kazim Raza and Mushtaq Ali Khan, “Classification of Freshwater Zooplankton by Pre-trained Convolutional Neural Network in Underwater Microscopy” International Journal of Advanced Computer Science and Applications(IJACSA), 11(7), 2020. http://dx.doi.org/10.14569/IJACSA.2020.0110733

@article{Hong2020,
title = {Classification of Freshwater Zooplankton by Pre-trained Convolutional Neural Network in Underwater Microscopy},
journal = {International Journal of Advanced Computer Science and Applications},
doi = {10.14569/IJACSA.2020.0110733},
url = {http://dx.doi.org/10.14569/IJACSA.2020.0110733},
year = {2020},
publisher = {The Science and Information Organization},
volume = {11},
number = {7},
author = {Song Hong and Syed Raza Mehdi and Hui Huang and Kamran Shahani and Yangfang Zhang and Junaidullah and Kazim Raza and Mushtaq Ali Khan}
}



Copyright Statement: This is an open access article licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, even commercially as long as the original work is properly cited.

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