Abstract
The water level measurement method based on image processing has entered a stage of rapid development in recent years due to its visibility and confirmability. However, the water level measurement method based on image processing is very susceptible to water stains, residual water level line, lighting conditions and other factors, and the measurement accuracy is difficult to compare with the traditional water level measurement method. This paper proposes a water level measurement method based on image processing and sparse representation. The experiment indicated that the method has a strong robustness to light variation, local disability, foreign matter occlusion, and so forth. Further, the maximum error of the method is less than 0.9 cm, which is significantly smaller than other image processing based water level recognition methods such as frame difference method, image segmentation method and Hough transform.
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Funding
This work is partially supported by the Research Foundation of Education Bureau of Jilin Province (JJKN20190710KJ) and the Nation Natural Science Foundation of Beijing (9174047).
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The authors also gratefully acknowledge the detailed comments and suggestions of the reviewers, which have helped to improve this manuscript.
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The authors declare that they have no conflicts of interest.
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Shuqiang Guo, Zhang, Y. & Liu, Y. A Water-Level Measurement Method Using Sparse Representation. Aut. Control Comp. Sci. 54, 302–312 (2020). https://doi.org/10.3103/S0146411620040069
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DOI: https://doi.org/10.3103/S0146411620040069