Abstract: For image-based rendering method toward people crow rendering inside virtual scene，since the sampled images are limited，when viewpoint changes continuously in rendering process，there would appear leap problem.This paper proposes an image based rendering algorithm that uses Motion Vector to solve the problem，which produces new images for adjacent viewpoints by moving each pixel’s position from the original images，achieves smooth transition between the discrete sampled images，solves the leap problem resulted from the limited sampled images，and increases rendering speed at the same time.Experiment shows that this method is valid.