公开(公告)号：US20180160113A1

公开(公告)日：2018-06-07

申请号：US15579869

申请日：2016-06-07

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Je Chang JEONG ,  Ki Baek KIM ,  Ung HWANG

IPC: H04N19/105 ,  H04N19/119 ,  H04N19/176 ,  H04N19/59 ,  H04N19/109 ,  H04N19/51 ,  H04N19/117

CPC classification number: H04N19/105 ,  H04N19/109 ,  H04N19/117 ,  H04N19/119 ,  H04N19/176 ,  H04N19/51 ,  H04N19/577 ,  H04N19/59 ,  H04N19/593

Abstract: A method and a device for encoding and decoding intra prediction are disclosed. An image decoding method for performing intra prediction comprises the steps of: receiving a bitstream including data on prediction modes of a current block and a block adjacent to the current block; extracting the data from the received bitstream so as to confirm the prediction mode of the adjacent block; determining whether a boundary pixel within the adjacent block can be used as a reference pixel for the current block in consideration of the prediction mode of the adjacent block; obtaining the reference pixel of the current block according to the determined result; generating a prediction block predicted in the frame on the basis of the obtained reference pixel; and decoding the current block by using the generated prediction block.

公开(公告)号：US20200021801A1

公开(公告)日：2020-01-16

申请号：US16579217

申请日：2019-09-23

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Je Chang JEONG ,  Ki Baek KIM ,  Ung HWANG

IPC: H04N19/105 ,  H04N19/51 ,  H04N19/117 ,  H04N19/109 ,  H04N19/59 ,  H04N19/119 ,  H04N19/176

Abstract: A method and a device for encoding and decoding intra prediction are disclosed. An image decoding method for performing intra prediction comprises the steps of: receiving a bitstream including data on prediction modes of a current block and a block adjacent to the current block; extracting the data from the received bitstream so as to confirm the prediction mode of the adjacent block; determining whether a boundary pixel within the adjacent block can be used as a reference pixel for the current block in consideration of the prediction mode of the adjacent block; obtaining the reference pixel of the current block according to the determined result; generating a prediction block predicted in the frame on the basis of the obtained reference pixel; and decoding the current block by using the generated prediction block.