ENCODING AND DECODING DEVICE AND METHOD USING INTRA PREDICTION

摘要

An apparatus for decoding a video using an intra prediction includes: an encoded data extractor to extract filtering information, information on an intra prediction mode; an intra predictor to calculate a reference pixel characteristic by using one or more of reference pixels within neighboring blocks of the target block, determine a filtering type to be applied to the reference pixels within the neighboring blocks, based at least on the extracted filtering information and the calculated reference pixel characteristic, and generate a predicted block, by adaptively filtering the reference pixels within the neighboring blocks depending on the determined filtering type and then predicting the target block from the adaptively-filtered reference pixels according to the information on the intra prediction mode; a residual data decoder to reconstruct a residual block; and an adder to add the predicted block to the residual block to reconstruct the target block.

主权项

1. An apparatus for decoding a video using an intra prediction, the apparatus comprising:
an encoded data extractor configured to extract filtering information, information on an intra prediction mode to be applied to a target block and a transformed and quantized residual block corresponding to the target block; an intra predictor configured to
calculate a reference pixel characteristic by using one or more of reference pixels within neighboring blocks of the target block,determine a filtering type to be applied to the reference pixels within the neighboring blocks, based at least on the extracted filtering information and the calculated reference pixel characteristic, andgenerate a predicted block, by adaptively filtering the reference pixels within the neighboring blocks depending on the determined filtering type and then predicting the target block from the adaptively-filtered reference pixels according to the information on the intra prediction mode; a residual data decoder configured to reconstruct a residual block by inversely quantizing and then inversely transforming the transformed and quantized residual block; and an adder configured to add the predicted block to the residual block to reconstruct the target block.