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An all-weather water quality identification method

An identification method, all-weather technology, applied in image enhancement, instruments, television, etc., can solve problems such as failure to detect and prevent in time, unstable concentration of chemical reagents, limited scope of use, etc., to solve post-event problems and reduce manual workload. , low cost effect

Active Publication Date: 2021-11-09
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above technologies often require specific devices, which limits the scope of use
For example, when the water quality in some remote areas is abnormal, it is often impossible to detect and prevent it in time; the chemical detection method also has the disadvantages of unstable chemical reagent concentration, which is likely to cause secondary pollution; and the monitoring and recording technology of intelligent image technology often requires Recording during the day when the light is relatively bright limits the application of the technology

Method used

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  • An all-weather water quality identification method

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Experimental program
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Embodiment

[0053] see Figure 1 to Figure 7 , the all-weather water quality identification method of the present embodiment comprises the following steps:

[0054] S1 acquires video images.

[0055] S2 judges day or night. The specific steps are:

[0056] (1) Perform color space conversion; in this example, convert to HSV color space, and separately extract the brightness V component for image enhancement processing.

[0057] (2) Select the average value of V brightness under the HSV color space as the judgment standard; in this example, the threshold value is set to 0.1, that is, when the average value of V brightness under the HSV color space is lower than 0.1, it is judged that the current image is a night image, and night mode processing is performed; otherwise If it is judged as a daytime image, it will be transferred to the daytime mode for image processing.

[0058] S3 day mode shooting and image processing recognition such as figure 2 As shown, the specific steps are:

[0...

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Abstract

The invention discloses an all-weather water quality identification method, belonging to the field of water quality identification, comprising the following steps: 1) using a video recording device to obtain video data, judging whether it is daytime or nighttime, if it is daytime, then switch to a daytime mode; if it is nighttime, then Change to night mode; 2) video data is processed into a single-frame image; 3) the single-frame image taken under the night mode is processed; 4) the single-frame image taken under the night mode after step 3) is processed and day The single-frame image captured in the time mode is recognized and processed, and the recognition result is output. Single-frame image processing is performed on the acquired video information, and the video image is processed according to the daytime and nighttime modes, and water quality identification is performed based on this. This technology can work around the clock, not only can provide early warning during the day, but also provide timely water quality information at night, which has strong practical value.

Description

technical field [0001] The invention relates to the field of water quality identification, in particular to an all-weather water quality identification method. Background technique [0002] The protection of water environment is very important to economic and social development. The traditional water quality detection method is mainly to set sampling points in fixed-point and fixed-section waters, take water samples to analyze components, or set up underwater cameras to collect water color and turbidity for analysis. There are also some water quality identification methods that use intelligent vision, but at night The captured images are often relatively dark and cannot be effectively judged. [0003] There are many methods for detecting water quality now, as: the Chinese patent literature with publication number CN104568797A discloses a kind of online monitoring system of sewage chromaticity, this system comprises clear water absorption pool, sample water absorption pool, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/11G06T7/136G06T7/90G06T5/00G06T5/10H04N5/232H04N5/235G01N21/84
CPCG06T7/0002G06T7/11G06T7/136G06T7/90G06T5/10G01N21/84G06T2207/10016G06T2207/20064G06T2207/30181H04N23/80H04N23/667H04N23/71G06T5/70
Inventor 林峰徐韬
Owner ZHEJIANG UNIV