The camera calibration for machine vision plays an important role in measuring position and pose of objects,it maps the relationship from 3D space objects and 2D image.However,it is a difficult non-linear optimization problem.In order to solve the complex optimization problems,particle swarm optimization(PSO) algorithm was put forward to solve the problem as a kind of optimization method.The method and the related theory of PSO were described,such as the principle of PSO algorithm,the monocular vision measu...