METHOD AND SYSTEM FOR MEASURING BIOMASS VOLUME AND WEIGHT OF A FISH FARMING TANK

摘要

System for estimating biomass of a fish farming tank by obtaining a depth profile of the tank, comprising: a platform movable over the tank; an underwater structured light vision system, SLS, placed upon the platform, which comprises a camera for capturing underwater images and two one or more line laser projectors each for projecting an underwater laser line beam; such that the SLS is displaceable over an area of the tank where the biomass is to be estimated; and a data processing system configured for: processing the captured underwater images of the laser beam lines, calculating the underwater depth profile of the tank from the triangulation of the processed images of the laser beam lines, and subtracting, from the calculated underwater depth profile of the tank, an underwater depth profile of the tank previously obtained when the tank was empty of fish, for obtaining the biomass volume of the fish farming tank.