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- W2130026608 abstract "Automatic reading system for water meter has been widely used in water supply industries and the method of print wheel region and pointers location is the key technology to automatic reading for water meter. Currently, main problems that affect print wheel region and pointers location of water meter are the complicated background of dial images, interfering information similar to pointers and the tilting situation with arbitrary angles. Aiming at above problems, a new algorithm of print wheel region and pointers location based on Fourier transform is raised in this essay. Firstly, edge detection and mathematical morphology processing are used to filter effective region. Then, it takes advantage of fast Fourier transform to detect tilting angle of dial image and corrects the tilting dial image. Finally, accurately extract the region of print wheel according to horizontal and vertical integral projection operator, and extract the pointers according to the distribution and circularity of pointers. The algorithm can locate the print wheel region and pointers accurately with little computation. It shortens automatic reading system's running time effectively and has great significance to the real-time automatic reading system." @default.
- W2130026608 created "2016-06-24" @default.
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- W2130026608 date "2009-01-01" @default.
- W2130026608 modified "2023-10-18" @default.
- W2130026608 title "Research on the Pre-processing Method of Automatic Reading Water Meter System" @default.
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- W2130026608 doi "https://doi.org/10.1109/aici.2009.154" @default.
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