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Publishing Language: Chinese

Method of recognizing ice circumferential crack size based on YOLACT

Li ZHOU1Jinyan CAI2Shifeng DING2( )Renwei LIU2Dinghan ZENG2
School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
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Abstract

Objective

When using the circumference crack method to calculate the ice load, the size of the circumference crack is usually determined by an empirical formula, but this can introduce many uncertainties to the selection of input parameters.

Methods

To accurately determine the size of circumference cracks, we propose a method of recognizing ice circumference crack size based on YOLACT, which can identify ice in images taken with ships. We then detect the edge of the mask and obtain the shape of the ice cracks, and the ice breaking radius and angle can be estimated by fitting the cracks.

Results

The results show that the accuracy of the ice breaking radius and angle estimated by the proposed method can reach up to 96.12% and 96.58% respectively.

Conclusion

This method can accurately determine the size of circumference cracks and assist in the initial design of marine structures in cold regions.

CLC number: U666.157 Document code: A

References

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Chinese Journal of Ship Research
Pages 150-157

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Cite this article:
ZHOU L, CAI J, DING S, et al. Method of recognizing ice circumferential crack size based on YOLACT. Chinese Journal of Ship Research, 2023, 18(6): 150-157. https://doi.org/10.19693/j.issn.1673-3185.03024

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Received: 31 July 2022
Revised: 06 September 2022
Published: 04 December 2023
© 2023 Chinese Journal of Ship Research.