This paper presents an improved dynamic programming(DP)based ray-space interpolation for arbitrary view rendering.Different from the conventional DP method

a smoothing constraint of inter-scanlines is applied to eliminate the "streaking" artifact

and the most time-consuming step of computing matching cost is carried out by an incremental computation scheme.Then

dense ray-space data are interpolated by a view-centered disparity estimation method.Finally

arbitrary viewpoint image with high quality can be rendered from this dense ray-space easily.The proposed scheme is evaluated on the Middlebury data set and 3DTV test data.The experimental results show that the PSNR and computational efficiency of the proposed rendering method are much higher than that of the other two schemes.