Hauptman Ham, LLP
Apparatus and method for image encoding/decoding using predictability of intra-prediction mode
An apparatus for decoding a video includes: a mode information extractor to extract mode information on an intra-prediction mode of a current block from encoded data; a prediction mode determiner to determine a candidate intra-prediction mode selected from a plurality of candidate intra-prediction modes as the intra-prediction mode of the current block, when the mode information indicates a first encoding mode; a prediction mode extractor to determine the intra-prediction mode of the current block by using a prediction mode identifier, when the mode information indicates a second encoding mode and includes the prediction mode identifier; and a decoder to decode the encoded data to produce a residual block, and reconstruct the current block by adding the produced residual block to a prediction block predicted based on the intra-prediction mode of the current block determined by either the prediction mode determiner or the prediction mode extractor.
SK TELECOM CO., LTD.
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Hayoon Joohee Kwanghyun Haekwang Byeungwoo Jungyoup Yunglyul
Kim Moon Won Kim Jeon Yang Lee