| With the economic development and market demand growth,aquaculture has been developed rapidly,and bacterial fish disease is the key issue which restricts the development of aquaculture.At present,using antibiotics is the general method for the prevention and treatment of bacterial diseases,it can not achieve the therapeutic effect with an under dose of medication,on the contrary too much medication will cause the increase of cost,environmental pollution as well as the damage of human health.Therefore,the study of pathogen infection model can provide a theoretical basis for scientific guidance of antibiotic use.The machine vision technology is used to explore the relationship of fish vigor and the concentration of pathogens,which will avoid the operating error and time-consuming by manual operation.An experimental platform has practical significance to the establishment of infection model and the development of aquaculture.Based on the analysis of the application of machine vision and the treatment of bacterial fish diseases,an experimental system for aquaculture pathogen infection model based on machine vision is designed.The main research contents of this paper are divided into four parts:(1)Aiming at the problem that manual operation is easy to make mistakes and waste time,a fish vitality detection scheme based on machine vision is proposed.Trajectory and the related dynamic parameters of fish can be calculated with target detection and tracking technology from video information.(2)Aiming at bacteria concentration increase caused by bacterial propagation during the experiment,a bacterial concentration control scheme is raised to maintain the concentration of bacterium in the experimental system by dilution operation.(3)The experiment system platform is built according to the experimental requirements which includes three parts,the video capture module is responsible for collecting fish video information;water quality monitoring module is to ensure the stability of system environment;the main functions of user monitoring center are to receive video and display the results after image processing;(4)A series of experiments are operated with the platform which are the pathogen culture,the pathogen concentration controland infecting fish by pathogens.The experiment data are analyzed and processed to establish the model of pathogen infection.The results show that the experiment system can successfully test the vitality of fish by using machine vision.The bacteria concentration in the system is constant with the pathogen concentration control scheme.Finally,the pathogen infection model is established preliminary on the basis of each experiment. |