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Superresolution is a technique to recover a high-resolution image from a low resolution image. We develop a variational superresolution method for the subpixel accurate optical flow computation using vari-ational optimisation. We combine variational superres-olution and the variational optical flow computation for the superresolution optical flow(More)
In video images, apparent motions can be computed using optical flow estimation. However, estimation of the depth directional velocity is difficult using only a single viewpoint. Scene flows (SF) are three-dimensional (3D) vector fields with apparent motion and a depth directional velocity field, which are computed from stereo video. The 3D motion of(More)
This paper proposes a method to improve the prediction accuracy of motion compensation (MC) in video coding using block-wise and pixel-wise motion with little additional information. In general MC, block-wise motion vectors (MVs) are computed by block matching (BM), but these are not always suitable for motions such as local scaling and deformation. To(More)