公开(公告)号：US20210392340A1

公开(公告)日：2021-12-16

申请号：US17407865

申请日：2021-08-20

Applicant: Ideahub Inc.

Inventor： Je Chang JEONG ,  Soon Jong JIN ,  Sang Jun PARK ,  Hyuk LEE

IPC: H04N19/159 ,  H04N19/196 ,  H04N19/176 ,  H04N19/11 ,  H04N19/152 ,  H04N19/513 ,  H04N19/547 ,  H04N19/124 ,  H04N19/61

Abstract: Provided are methods and apparatuses for improving compression efficiency in directional intra-prediction. A video encoding apparatus, which does not need to record intra mode information, includes a mode selector that selects one from among a plurality of intra modes on the basis of a directionality of at least one neighboring block that has already been reconstructed before a current block is reconstructed, an intra predictor that obtains a prediction block of the current block from the at least one neighboring block according to the directionality of the selected mode, and obtains a residual block by subtracting the prediction block from the current block, and a unit for encoding the obtained residual block.

公开(公告)号：US20190356923A1

公开(公告)日：2019-11-21

申请号：US16532208

申请日：2019-08-05

Applicant: Ideahub Inc.

Inventor： Je Chang JEONG ,  Soon Jong JIN ,  Sang Jun PARK ,  Hyuk LEE

IPC: H04N19/159 ,  H04N19/124 ,  H04N19/176 ,  H04N19/513 ,  H04N19/196 ,  H04N19/61 ,  H04N19/547 ,  H04N19/11 ,  H04N19/152

Abstract: Provided are methods and apparatuses for improving compression efficiency in directional intra-prediction. A video encoding apparatus, which does not need to record intra mode information, includes a mode selector that selects one from among a plurality of intra modes on the basis of a directionality of at least one neighboring block that has already been reconstructed before a current block is reconstructed, an intra predictor that obtains a prediction block of the current block from the at least one neighboring block according to the directionality of the selected mode, and obtains a residual block by subtracting the prediction block from the current block, and a unit for encoding the obtained residual block.

公开(公告)号：US20190268604A1

公开(公告)日：2019-08-29

申请号：US16407095

申请日：2019-05-08

Applicant: Ideahub Inc.

Inventor： Je Chang JEONG ,  Soon Jong JIN ,  Sang Jun PARK ,  Hyuk LEE

IPC: H04N19/159 ,  H04N19/547 ,  H04N19/513 ,  H04N19/152 ,  H04N19/11 ,  H04N19/124 ,  H04N19/176 ,  H04N19/61 ,  H04N19/196

Abstract: Provided are methods and apparatuses for improving compression efficiency in directional intra-prediction. A video encoding apparatus, which does not need to record intra mode information, includes a mode selector that selects one from among a plurality of intra modes on the basis of a directionality of at least one neighboring block that has already been reconstructed before a current block is reconstructed, an intra predictor that obtains a prediction block of the current block from the at least one neighboring block according to the directionality of the selected mode, and obtains a residual block by subtracting the prediction block from the current block, and a unit for encoding the obtained residual block.

公开(公告)号：US20190268603A1

公开(公告)日：2019-08-29

申请号：US16407086

申请日：2019-05-08

Applicant: Ideahub Inc.

Inventor： Je Chang JEONG ,  Soon Jong JIN ,  Sang Jun PARK ,  Hyuk LEE

IPC: H04N19/159 ,  H04N19/547 ,  H04N19/513 ,  H04N19/152 ,  H04N19/11 ,  H04N19/124 ,  H04N19/176 ,  H04N19/61 ,  H04N19/196

Abstract: Provided are methods and apparatuses for improving compression efficiency in directional intra-prediction. A video encoding apparatus, which does not need to record intra mode information, includes a mode selector that selects one from among a plurality of intra modes on the basis of a directionality of at least one neighboring block that has already been reconstructed before a current block is reconstructed, an intra predictor that obtains a prediction block of the current block from the at least one neighboring block according to the directionality of the selected mode, and obtains a residual block by subtracting the prediction block from the current block, and a unit for encoding the obtained residual block.

公开(公告)号：US20240214581A1

公开(公告)日：2024-06-27

申请号：US18600047

申请日：2024-03-08

Applicant: IDEAHUB INC.

Inventor： Je Chang JEONG ,  Soon Jong JIN ,  Sang Jun PARK ,  Hyuk LEE

IPC: H04N19/159 ,  H04N19/11 ,  H04N19/124 ,  H04N19/152 ,  H04N19/176 ,  H04N19/184 ,  H04N19/196 ,  H04N19/50 ,  H04N19/513 ,  H04N19/547 ,  H04N19/61

CPC classification number: H04N19/159 ,  H04N19/11 ,  H04N19/124 ,  H04N19/152 ,  H04N19/176 ,  H04N19/197 ,  H04N19/513 ,  H04N19/547 ,  H04N19/61 ,  H04N19/184 ,  H04N19/50

Abstract: Provided are methods and apparatuses for improving compression efficiency in directional intra-prediction. A video encoding apparatus, which does not need to record intra mode information, includes a mode selector that selects one from among a plurality of intra modes on the basis of a directionality of at least one neighboring block that has already been reconstructed before a current block is reconstructed, an intra predictor that obtains a prediction block of the current block from the at least one neighboring block according to the directionality of the selected mode, and obtains a residual block by subtracting the prediction block from the current block, and a unit for encoding the obtained residual block.