The application discloses an online
water quality analysis method and
system based on a
multispectral image analysis model, and belongs to the technical field of
water quality analysis, and comprises the following steps: collecting a
multispectral image of a target
water body and performing pretreatment, and constructing a
multispectral image analysis model comprising an analysis model, a classification model, a
water body plankton coverage inversion model, a
water body transparency inversion model, a water surface
eutrophication inversion model and a key
water quality parameter analysis model. The analysis model is used to extract water
quality characteristics, the classification model is used to extract a water surface line, and then current water
quality data and the water surface line are input into the inversion model to perform water body
plankton coverage, water body transparency and water surface
eutrophication inversion and key water quality
parameter analysis, and finally, analysis results are fused to output comprehensive water quality evaluation. The online water quality
analysis method provided by the application can realize efficient and real-time water
quality monitoring and analysis, and provides a scientific basis for
water environment management.