Fishway fish passing quantity automatic counting system and method based on dynamic structured light measurement

The invention discloses a fishway fish passing quantity automatic counting system and method based on dynamic structured light measurement. The system comprises a sensing unit and a structured light source which are mounted above a fishway, the sensing unit comprises an underwater CCD camera, an acoustic transceiver, an orientation sensor and a communication connector which are electrically connected with a central processor, the underwater CCD camera and the acoustic transceiver are arranged on the surface of the sensing unit and face the fishway, the communication connector is coupled with adata processing work station mounted outside the fishway, and the data processing work station comprises a data collecting unit and a counting unit connected with the data collecting unit. Accordingto the fishway fish passing quantity automatic counting system based on dynamic structured light measurement, the structured light source is mounted above a shooting scene, projection is carried out in the fishway, the cross s