期刊
METHODSX
卷 9, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.mex.2021.101598
关键词
Morphometrics; Ecotoxicity; Microscopy; Machine learning; Artificial neural networks; Instance segmenting; Machine vision
资金
- Research Council of Norway [280511/E40]
Measurement of morphometric parameters on fish larvae is important for environmental research and cultivation industry. The use of Mask R-CNN for instance segmentation helps to automate parameter acquisition, saving time and improving accuracy. This technique has been successfully tested on various species of organisms.
Measurements of morphometrical parameters on i.e., fish larvae are useful for assessing the quality and condition of the specimen in environmental research or optimal growth in the cultivation industry. Manually acquiring morphometrical parameters from microscopy images can be time consuming and tedious, this can be a limiting factor when acquiring samples for an experiment. Mask R-CNN, an instance segmentation neural network architecture, has been implemented for finding outlines on parts of interest on fish larvae (Atlantic cod, Gadus morhua). Using classical machine vision techniques on the outlines makes it is possible to acquire morphometrics such as area, diameter, length, and height. The combination of these techniques is providing accurate-, consistent-, and high-volume information on the morphometrics of small organisms, making it possible to sample more data for morphometric analysis. Capabilities to automatically analyse a set of microscopy images in approximately 2-3 seconds per image, with results that have a high degree of accuracy when compared to morphometrics acquired manually by an expert. Can be implemented on other species of ichthyoplankton or zooplankton and has successfully been tested on ballan wrasse, zebrafish, lumpsucker and calanoid copepods. (C) 2021 The Author(s). Published by Elsevier B.V.
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