TWI832435B

[Problem] To implement water quality monitoring in a non-contact manner using captured images from a monitoring camera, and to detect water quality abnormalities accurately by suppressing the effects of a change of state of a monitoring target. [Solution] A water quality monitoring system according to an embodiment includes: a water quality abnormality detecting unit which uses an object detection model to recognize a water surface region from a captured image of a water quality monitoring target output from a monitoring camera, and determines a water quality abnormality based on a condition of the recognized water surface region; and a monitoring result output unit for outputting a monitoring result. As a result, water quality monitoring can be implemented in a non-contact manner, and water quality abnormalities can be detected accurately even if there is an effect due to a change of state (variation in water level, variation in angle of view of monitoring camera, variation in orientation of camera, etc.) of