This paper proposes a novel intra prediction method which can be used with block-based image coding algorithms typically using DCT. In this method, a non-directional and several directional prediction modes are adaptively selected on a block-by-block basis. The non-directional prediction mode produces smooth image values from the reference pels based on mean value coordinates. For the directional modes, the angular prediction used in HEVC is extended to enable interpolative prediction as far as possible. In both cases, the proposed method has no restrictions on positions of the reference pels. This feature allows adaptation of processing order for the blocks. Simulation results indicate that the proposed method outperforms the angular prediction in terms of PSNR of predicted images when almost the same amount of side-information is assigned.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.