Fish group tracking based on Delaunay Triangulation network

In order to accurately track fish group, a new algorithm is proposed, which is based on the improved background subtraction (IBS) algorithm and the Delaunay Triangulation (DT) network. First, the IBS algorithm is used to segment each frame of the video; second, the center of each fish is evaluated; third, the DT network is established; fourth, the DT network is optimized and the center of the fish group is calculated. Experimental results show that this algorithm can track fish groups accurately and provide effective data for monitoring water quality.