In order to improve the time resolution of super-resolution fluorescent microscopy,the methods of highdensity molecule localization have been proposed.Three algorithms based on compressed sensing models,including the interior-point method in the CVX toolbox,the homotopy method,and the orthogonal matching pursuit(OMP)algorithm,are investigated.We compare the identified density,localization precision,and execution time by using these algorithms in the simulations and experiments.Simulation results show that t...