Water level identification method based on binary coding character staff gauge and image processing

Abstract

The present invention relates to the digital image processing technology, especially to a water level identification method based on binary coding character staff gauge and image processing. The water level identification method based on the binary coding character staff gauge and the image processing comprises: extracting the binary coding character staff gauge image key pixel, performing binary coding character staff gauge tilt correction through adoption of the Radon conversion algorithm; determining the left, the right, the upper and the lower edges of the binary coding character staff gauge; extracting the binary coding character staff gauge scale line; performing the location and the segment of the binary coding character representing the staff gauge measuring range; performing the binary coding character staff gauge measuring range identification through combination of the Hopfield nerve network and the template matching; and realizing the resolving of the water level value through adoption of the mathematical relationship of the binary coding character staff gauge scale line and the binary coding character staff gauge measuring range. The water level identification method based on the binary coding character staff gauge and the image processing is safe, efficient and small in investment.

Description

technical field [0001] The invention relates to digital image processing technology, in particular to a water level recognition method based on binary code character water gauge and image processing. Background technique [0002] With the development of science and technology and economy, the safe utilization and optimal management of water resources has become one of the social concerns, which puts forward higher requirements for automatic detection of water levels. [0003] At present, the traditional water level detection includes: [0004] (1) Manual visual water gauge readings. This method is time-consuming and labor-intensive, especially in harsh environments, which will pose a threat to the personal safety of observers. [0005] (2) Use the water level gauge to collect water level information. Such as bubble water level gauge, pressure water level gauge, radar water level gauge, etc. In the process of obtaining the water level, these water level gauges need to be ...

AI Technical Summary

Problems solved by technology

In the process of obtaining the water level, these water level gauges need to be specially equipped with water level information acquisition equipment, which requires large investment and difficult maintenance

[0006] Moreover, the existing standard water gauge uses Arabic numerals to represent the height of the water level, and there are defects such as the number '8' being easily misrecognized as '3' and the number '0' being easily misrecognized as 'D'

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