公开(公告)号：US11284072B2

公开(公告)日：2022-03-22

申请号：US17161113

申请日：2021-01-28

Applicant: M&K Holdings Inc.

Inventor： Soo Mi Oh ,  Moonock Yang

IPC: H04N19/11 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80

Abstract: Provided is a method that de-multiplexes a bit stream to extract intra prediction mode information and residual signals, restores an intra prediction mode of a current prediction unit using the intra prediction information and intra prediction modes of prediction units adjacent to the current prediction unit, generates reference pixels using one or more available reference pixel if there exist unavailable reference pixels of the prediction unit, adaptively filters the reference pixels based on the restored intra prediction mode, generates a prediction block using the restored intra prediction mode and the reference pixels, decodes the residual signal to generating a residual block, and generates a reconstructed block using the prediction block and the residual block. Accordingly, additional bits resulted from increase of a number of intra prediction mode are effectively reduced. Also, an image compression ratio can be improved by generating a prediction block similar to an original block.

公开(公告)号：US10979731B2

公开(公告)日：2021-04-13

申请号：US16796555

申请日：2020-02-20

Applicant: M & K Holdings Inc.

Inventor： Soo Mi Oh ,  Moonock Yang

IPC: H04N19/52 ,  H04N19/105 ,  H04N19/124 ,  H04N19/56 ,  H04N19/61 ,  H04N19/107 ,  H04N19/51 ,  H04N19/139 ,  H04N19/176 ,  H04N19/13 ,  H04N19/159 ,  H04N19/126 ,  H04N19/129 ,  H04N19/91 ,  H04N19/11

Abstract: Provided is an apparatus for decoding an image. The apparatus restores a plurality of sub-blocks by applying a scan pattern determined according to the intra prediction mode of the current block on the quantization coefficient sequence and restores the quantized transform block by applying a scan pattern determined according to the intra prediction mode of the current block on the plurality of sub-blocks. Therefore, it is possible to reduce the amount of coding bits and computing resources required to decode a current prediction block.

公开(公告)号：US10602181B2

公开(公告)日：2020-03-24

申请号：US16260570

申请日：2019-01-29

Applicant: M & K HOLDINGS INC.

Inventor： Soo Mi Oh ,  Moonock Yang

IPC: H04N19/52 ,  H04N19/124 ,  H04N19/56 ,  H04N19/61 ,  H04N19/107 ,  H04N19/51 ,  H04N19/139 ,  H04N19/176 ,  H04N19/13 ,  H04N19/159 ,  H04N19/126 ,  H04N19/129 ,  H04N19/91 ,  H04N19/105 ,  H04N19/11

Abstract: Provided is an apparatus for decoding an image. The apparatus restores a plurality of sub-blocks by applying a scan pattern determined according to the intra prediction mode of the current block on the quantization coefficient sequence and restores the quantized transform block by applying a scan pattern determined according to the intra prediction mode of the current block on the plurality of sub-blocks. Therefore, it is possible to reduce the amount of coding bits and computing resources required to decode a current prediction block.

公开(公告)号：US20190068965A1

公开(公告)日：2019-02-28

申请号：US16171548

申请日：2018-10-26

Applicant: M&K HOLDINGS INC.

Inventor： Soo Mi Oh ,  Moonock Yang

IPC: H04N19/11 ,  H04N19/70 ,  H04N19/80 ,  H04N19/593

CPC classification number: H04N19/11 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80 ,  H05K999/99

Abstract: Provided is a method that de-multiplexes a bit stream to extract intra prediction mode information and residual signals, restores an intra prediction mode of a current prediction unit using the intra prediction information and intra prediction modes of prediction units adjacent to the current prediction unit, generates reference pixels using one or more available reference pixel if there exist unavailable reference pixels of the prediction unit, adaptively filters the reference pixels based on the restored intra prediction mode, generates a prediction block using the restored intra prediction mode and the reference pixels, decodes the residual signal to generating a residual block, and generates a reconstructed block using the prediction block and the residual block. Accordingly, additional bits resulted from increase of a number of intra prediction mode are effectively reduced. Also, an image compression ratio can be improved by generating a prediction block similar to an original block.

公开(公告)号：US10136130B2

公开(公告)日：2018-11-20

申请号：US15189305

申请日：2016-06-22

Applicant: M&K HOLDINGS INC.

Inventor： Soo Mi Oh ,  Moonock Yang

IPC: H04N19/11 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80

Abstract: Provided is a method that de-multiplexes a bit stream to extract intra prediction mode information and residual signals, restores an intra prediction mode of a current prediction unit using the intra prediction information and intra prediction modes of prediction units adjacent to the current prediction unit, generates reference pixels using one or more available reference pixel if there exist unavailable reference pixels of the prediction unit, adaptively filters the reference pixels based on the restored intra prediction mode, generates a prediction block using the restored intra prediction mode and the reference pixels, decodes the residual signal to generating a residual block, and generates a reconstructed block using the prediction block and the residual block. Accordingly, additional bits resulted from increase of a number of intra prediction mode are effectively reduced. Also, an image compression ratio can be improved by generating a prediction block similar to an original block.

公开(公告)号：US10123010B2

公开(公告)日：2018-11-06

申请号：US15189273

申请日：2016-06-22

Applicant: M&K HOLDINGS INC.

Inventor： Soo Mi Oh ,  Moonock Yang

IPC: H04N19/11 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80

Abstract: Provided is a method that de-multiplexes a bit stream to extract intra prediction mode information and residual signals, restores an intra prediction mode of a current prediction unit using the intra prediction information and intra prediction modes of prediction units adjacent to the current prediction unit, generates reference pixels using one or more available reference pixel if there exist unavailable reference pixels of the prediction unit, adaptively filters the reference pixels based on the restored intra prediction mode, generates a prediction block using the restored intra prediction mode and the reference pixels, decodes the residual signal to generating a residual block, and generates a reconstructed block using the prediction block and the residual block. Accordingly, additional bits resulted from increase of a number of intra prediction mode are effectively reduced. Also, an image compression ratio can be improved by generating a prediction block similar to an original block.

公开(公告)号：US09807414B2

公开(公告)日：2017-10-31

申请号：US15364557

申请日：2016-11-30

Applicant: M & K HOLDINGS INC.

Inventor： Soo Mi Oh ,  Moonock Yang

IPC: H04N19/51 ,  H04N19/52 ,  H04N19/56 ,  H04N19/61 ,  H04N19/107 ,  H04N19/124 ,  H04N19/139 ,  H04N19/176 ,  H04N19/13 ,  H04N19/159 ,  H04N19/126 ,  H04N19/129 ,  H04N19/91 ,  H04N19/105 ,  H04N19/11

CPC classification number: H04N19/52 ,  H04N19/105 ,  H04N19/107 ,  H04N19/11 ,  H04N19/124 ,  H04N19/126 ,  H04N19/129 ,  H04N19/13 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/51 ,  H04N19/56 ,  H04N19/61 ,  H04N19/91

Abstract: Provided is an apparatus for decoding a moving picture that determines a quantization step size of a previous coding block according to scan order as the quantization step size predictor of the current coding block when a quantization step size of a left coding block of a current coding block and a quantization step size of an above coding block of the current coding block are unavailable and determines an available motion vector encountered first when retrieving motion vectors in the order of motion vector of a first predetermined position and motion vector of a second predetermined position in a reference picture as a temporal motion vector candidate. Therefore, it is possible to reduce the amount of coding bits required to decode motion information and the quantization step size of the current prediction block.

公开(公告)号：US20170302947A9

公开(公告)日：2017-10-19

申请号：US15189452

申请日：2016-06-22

Applicant: M&K HOLDINGS INC.

Inventor： Soo Mi Oh ,  Moonock Yang

IPC: H04N19/463 ,  H04N19/593 ,  H04N19/44 ,  H04N19/159 ,  H04N19/11 ,  H04N19/80 ,  H04N19/70 ,  H04N19/182 ,  H04N19/13 ,  H04N19/176 ,  H04N19/124

CPC classification number: H04N19/463 ,  H04N19/11 ,  H04N19/124 ,  H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80

Abstract: Provided is a method that de-multiplexes a bit stream to extract intra prediction mode information and residual signals, restores an intra prediction mode of a current prediction unit using the intra prediction information and intra prediction modes of prediction units adjacent to the current prediction unit, generates reference pixels using one or more available reference pixel if there exist unavailable reference pixels of the prediction unit, adaptively filters the reference pixels based on the restored intra prediction mode, generates a prediction block using the restored intra prediction mode and the reference pixels, decodes the residual signal to generating a residual block, and generates a reconstructed block using the prediction block and the residual block. Accordingly, additional bits resulted from increase of a number of intra prediction mode are effectively reduced. Also, an image compression ratio can be improved by generating a prediction block similar to an original block.

公开(公告)号：US20170302928A9

公开(公告)日：2017-10-19

申请号：US15189596

申请日：2016-06-22

Applicant: M&K HOLDINGS INC.

Inventor： Soo Mi Oh ,  Moonock Yang

IPC: H04N19/11 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80

CPC classification number: H04N19/11 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80 ,  H05K999/99

Abstract: Provided is a method that de-multiplexes a bit stream to extract intra prediction mode information and residual signals, restores an intra prediction mode of a current prediction unit using the intra prediction information and intra prediction modes of prediction units adjacent to the current prediction unit, generates reference pixels using one or more available reference pixel if there exist unavailable reference pixels of the prediction unit, adaptively filters the reference pixels based on the restored intra prediction mode, generates a prediction block using the restored intra prediction mode and the reference pixels, decodes the residual signal to generating a residual block, and generates a reconstructed block using the prediction block and the residual block. Accordingly, additional bits resulted from increase of a number of intra prediction mode are effectively reduced. Also, an image compression ratio can be improved by generating a prediction block similar to an original block.

公开(公告)号：US09716886B2

公开(公告)日：2017-07-25

申请号：US15189219

申请日：2016-06-22

Applicant: M&K HOLDINGS INC.

Inventor： Soo Mi Oh ,  Moonock Yang

IPC: H04N19/159 ,  H04N19/11 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80

CPC classification number: H04N19/11 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80 ,  H05K999/99

Abstract: Provided is a method that de-multiplexes a bit stream to extract intra prediction mode information and residual signals, restores an intra prediction mode of a current prediction unit using the intra prediction information and intra prediction modes of prediction units adjacent to the current prediction unit, generates reference pixels using one or more available reference pixel if there exist unavailable reference pixels of the prediction unit, adaptively filters the reference pixels based on the restored intra prediction mode, generates a prediction block using the restored intra prediction mode and the reference pixels, decodes the residual signal to generating a residual block, and generates a reconstructed block using the prediction block and the residual block. Accordingly, additional bits resulted from increase of a number of intra prediction mode are effectively reduced. Also, an image compression ratio can be improved by generating a prediction block similar to an original block.