Device and method for measuring the concentration of marine suspended particles

Abstract

The invention provides a device and a method for measuring the concentration of marine suspended particles based on digital image processing. According to the invention, based on the principle that seawater and marine suspended particles have different reflectivities to light, by using a digital image processing technology, a set of ocean suspended particulate matter concentration measuring devicebased on a digital image processing technology and an ocean suspended particulate matter image feature value algorithm used for representing the ocean suspended particulate matter concentration are established, and the ocean suspended particulate matter image feature value is extracted through the algorithm. The marine suspended particle image feature value can realize inversion of the real concentration of marine suspended particles. According to the method, a digital image processing technology is tried to be applied to measurement of the concentration of the marine suspended particulate matters, the measurement precision only depends on the shooting precision of a measurement device and the improvement of a subsequent algorithm, and the defect that the measurement precision is easily influenced by the particle size and particle size distribution of the marine suspended particulate matters can be overcome; meanwhile, the method has the advantages of intuition, continuous observation, simplicity and convenience in operation and the like, and has a wide application prospect in ocean investigation.

Description

technical field [0001] The invention belongs to the technical field of marine hydrological observation, and in particular relates to a device and method for measuring the concentration of suspended particulate matter in the ocean based on digital image processing. Background technique [0002] Marine suspended particulate matter generally refers to substances in seawater that cannot pass through the filter membrane, including organic components as biological sources and inorganic components such as suspended sediment. Marine suspended particulate matter has dual ecological effects. On the one hand, it serves as a place for microbial decomposition, releasing inorganic nitrogen and inorganic salts to the water body; The photosynthesis of plants, so the concentration of suspended particulate matter in the ocean affects the primary productivity in the ocean to a certain extent. Moreover, marine suspended particulate matter is an important factor for in-depth understanding of ma...

AI Technical Summary

Problems solved by technology

This optical-based measurement method is easily affected by dissolved substances in seawater, and the attenuation or reflection of the beam will be lost to a certain extent, resulting in certain errors in the measurement results; Substances are more sensitive, and turbidimeters

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