Abstract: This paper proposes an improved video-based texture synthesis approach for simulating realistic natural phenomena.The algorithm measures similarity of every two frames to determine an initial playing sequence and then divides the initial playing sequence into several subsequences with different frame-to-frame delay，so as to remove visual discontinuities.For removing the abrupt change from the last frame to the first frame in the video loop，at first the algorithm determines the cycle of the initial playing sequence.Then the algorithm chooses several frames from the initial playing sequence based on the cycle and divides every single chosen frame or subsequences into patches，which depends on the cycle of video.At last the algorithm re-organizes these patches into a final playing sequence.The experiment results indicate that the algorithm is easy to synthesizing realistic effects of natural surrounding video which has repetitive or quasi-repetitive motions.