Water level identification method, equipment and product

The invention discloses a water level identification method, device and product, and relates to the field of water level measurement, and the method comprises the steps: calibrating the parameters of a camera through a water level monitoring preset point view field; the parameters of the camera comprise an x-direction main distance, a y-direction main distance, coordinates of an image principal point in a photo coordinate system, a photo exterior orientation line element, a photo exterior azimuth angle element, a non-square proportionality coefficient, a non-orthogonality distortion coefficient, a radial distortion coefficient and a tangential distortion coefficient; calibrating parameters of the water gauge; determining water level equation parameters according to the calibrated parameters of the camera; determining a water level square line and a water level point according to a real-time image acquired by the camera; and determining the real-time water level according to the water level equation parameter,