Image encoding/decoding method and device, and recording medium storing bit stream
AssigneeIntellectual Discovery Co., Ltd.
InventorsHyun Suk KO, Sung Chang LIM, Jung Won KANG, Jin Ho LEE, Ha Hyun LEE, Dong San JUN, Hui Yong KIM
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Abstract
The present invention relates to an image encoding/decoding method and apparatus. The image decoding method according to the present invention may comprise configuring an MPM list based on intra-prediction modes of neighbor blocks of a current block and a number of frequencies of the intra-prediction modes of the neighbor blocks, deriving an intra-prediction mode of the current block based on the MPM list, and performing intra-prediction for the current block based on the intra-prediction mode.
Claims7
An image decoding method, comprising:
- deriving an intra prediction mode of a current block;
- determining one reference sample line, including one upper reference sample line and one left reference sample line, among a plurality of reference sample lines;
- configuring a reference sample of intra prediction for the current block from the one reference sample line;
- and
- performing intra prediction for the current block based on the intra prediction mode and the reference sample,
- wherein the configuring the reference sample further comprising:
- filtering the one reference sample line based on whether the one reference sample line is a reference sample line adjacent to the current block.
An image encoding method, comprising:
- deriving an intra prediction mode of a current block;
- determining one reference sample line, including one upper reference sample line and one left reference sample line, among a plurality of reference sample lines;
- configuring a reference sample of intra prediction for the current block from the one reference sample line;
- and
- performing intra prediction for the current block based on the intra prediction mode and the reference sample,
- wherein the configuring the reference sample further comprising:
- filtering the one reference sample line based on whether the one reference sample line is a reference sample line adjacent to the current block.
A method for transmitting a bitstream which is decoded by an image decoding method and used for reconstructing an image, comprising:
- deriving an intra prediction mode of a current block;
- determining one reference sample line, including one upper reference sample line and one left reference sample line, among a plurality of reference sample lines;
- configuring a reference sample of intra prediction for the current block from the one reference sample line;
- and
- performing intra prediction for the current block based on the intra prediction mode and the reference sample,
- wherein the configuring the reference sample further comprising:
- filtering the one reference sample line based on whether the one reference sample line is a reference sample line adjacent to the current block.
Dependencies are inferred from the claim text.