METHOD AND SYSTEM FOR AUTOMATIC CLASSIFICATION OF FISH UNDER WATER

摘要

A method and a system is described for automatic classification of fish under water comprising a camera system arranged to take pictures of fish that pass, and an analysis unit arranged to receive and to analyse each picture to find the contour of the fish and to divide up the contour of the fish into a number of segments to analyse each segment. The camera system is placed under water and the analysis unit is arranged to analyse the transitions in each segment expressed by the strength of the transitions such as degree of darkness and direction, thereafter to describe characteristic features of the fish, such as fins, eyes, stripes along the fish, pattern, etc., based on the analysis of the transitions, and to compare the characteristic features with data of fish in a knowledge database for classification of fish with the help of discriminatory analysis, and to display the result in a user interface.