公开(公告)号：US20220303537A1

公开(公告)日：2022-09-22

申请号：US17833335

申请日：2022-06-06

Applicant: LG Electronics Inc.

Inventor： Hilmi Enes EGILMEZ ,  Jana Ehmann ,  Onur G. GULERYUZ

IPC: H04N19/12 ,  H04N19/159 ,  H04N19/18 ,  H04N19/61

Abstract: The present invention, with respect to a method of processing video data, provides a method of processing video data, provides a method characterized by comprising the steps of: performing a clustering for the video data; generating at least one data cluster as a result of the clustering; generating at least one Graph laplacian matrix corresponding to the at least one data cluster; performing conversion optimization on the basis of multiple graph-based models, wherein the multiple graph-based models respectively include at least one graph laplacian matrix; and generating an optimized conversion matrix according to the results of performing the conversion optimization.

公开(公告)号：US20210195241A1

公开(公告)日：2021-06-24

申请号：US16074364

申请日：2017-02-01

Applicant: LG Electronics Inc.

Inventor： Hilmi E. EGILMEZ ,  Onur G. GULERYUZ ,  Jana EHMANN ,  Sehoon YEA

IPC: H04N19/60 ,  H04N19/124 ,  H04N19/88 ,  H04N19/18 ,  G06F7/78

Abstract: The present invention provides a method for performing a transform, the method comprising the steps of: deriving a row transform set, a column transform set, and a permutation matrix on the basis of a given transform matrix (H) and error tolerance parameter; obtaining a row-column transform (RCT) coefficient on the basis of the row transform set, the column transform set, and the permutation matrix; and performing a quantization and an entropy encoding on the RCT coefficient, wherein the permutation matrix represents a matrix obtained by permutating a row of an identity matrix.

公开(公告)号：US20180288411A1

公开(公告)日：2018-10-04

申请号：US15764230

申请日：2016-09-29

Applicant: LG Electronics Inc. ,  UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Hilmi E. EGILMEZ ,  Sehoon YEA ,  Antonio ORTEGA ,  Onur G. GULERYUZ ,  Jana EHMANN

IPC: H04N19/11 ,  H04N19/13 ,  H04N19/134

Abstract: The present invention provides a method for encoding a video signal by using a single optimized graph, comprising the steps of: obtaining a residual block; generating graphs from the residual block; generating an optimized graph and an optimized transform by combining the graphs, wherein the graphs are combined on the basis of an optimization step; and performing a transform for the residual block on the basis of the optimized graph and the optimized transform.

公开(公告)号：US20240373008A1

公开(公告)日：2024-11-07

申请号：US18772875

申请日：2024-07-15

Applicant: LG Electronics Inc.

Inventor： Hilmi Enes EGILMEZ ,  Jana Ehmann ,  Onur G. GULERYUZ

IPC: H04N19/12 ,  H04N19/159 ,  H04N19/18 ,  H04N19/61

Abstract: The present invention, with respect to a method of processing video data, provides a method of processing video data, provides a method characterized by comprising the steps of: performing a clustering for the video data; generating at least one data cluster as a result of the clustering; generating at least one Graph laplacian matrix corresponding to the at least one data cluster; performing conversion optimization on the basis of multiple graph-based models, wherein the multiple graph-based models respectively include at least one graph laplacian matrix; and generating an optimized conversion matrix according to the results of performing the conversion optimization.

公开(公告)号：US20190191185A1

公开(公告)日：2019-06-20

申请号：US16301078

申请日：2017-05-12

Applicant: LG Electronics Inc.

Inventor： Jana EHMANN ,  Onur G. GULERYUZ

IPC: H04N19/61 ,  H04N19/46 ,  H04N19/124 ,  H04N19/176 ,  H04N19/13

CPC classification number: H04N19/61 ,  H04N19/124 ,  H04N19/13 ,  H04N19/176 ,  H04N19/182 ,  H04N19/46 ,  H04N19/70

Abstract: Disclosed is a method allowing enhanced prediction of a video signal, the method comprising the steps of: entropy-decoding a neighboring block adjacent to a target block; inverse-quantizing the entropy-decoded neighboring block; acquiring the modified neighboring block by carrying out a modified inverse transform on an inverse-quantized transform coefficient vector of the neighboring block; and generating a prediction block for the target block based on the modified neighboring block, wherein the modified inverse transform applies a different scaling matrix for each pixel location reconstructed for the inverse-quantized transform coefficient vector of the neighboring block.

公开(公告)号：US20200092553A1

公开(公告)日：2020-03-19

申请号：US15750751

申请日：2016-08-08

Applicant: LG Electronics Inc.

Inventor： Onur G. GULERYUZ ,  Hilmi E. EGILMEZ ,  Jana EHMANN

IPC: H04N19/12 ,  H04N19/196 ,  H04N19/60 ,  H04N19/176 ,  G06N7/00

Abstract: A method for encoding a video signal includes: a step of selecting a transform parameter set via an optimization process for a target block, wherein the transform parameter set comprises a vertical transform set, a horizontal transform set and a transform order parameter set; a step of updating, on the basis of the selected transform parameter set, a transform block having a singleton coefficient, wherein the single ton coefficient represents a single coefficient obtained on the basis of the transform order parameter set; a step of obtaining a transform coefficient for the target block on the basis of the updated transform block; a step of quantizing the transform coefficient; and a step of entropy encoding the quantized transform coefficient.

公开(公告)号：US20180278943A1

公开(公告)日：2018-09-27

申请号：US15762034

申请日：2016-09-21

Applicant: LG Electronics Inc.

Inventor： Bohan LI ,  Jana EHMANN ,  Onur G. GULERYUZ

IPC: H04N19/176 ,  H04N19/50 ,  H04N19/18 ,  H04N19/91 ,  H04N19/124

CPC classification number: H04N19/176 ,  H04N19/107 ,  H04N19/11 ,  H04N19/117 ,  H04N19/119 ,  H04N19/124 ,  H04N19/126 ,  H04N19/13 ,  H04N19/157 ,  H04N19/159 ,  H04N19/18 ,  H04N19/463 ,  H04N19/50 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82 ,  H04N19/91

Abstract: A method for performing enhanced prediction on video signals includes the steps of: performing entropy decoding and dequantization on a neighboring block of a target block; performing a scaling on a dequantized transform coefficient for the neighboring block by using a scaling matrix; acquiring a modified neighboring block by performing inverse transform on the scaled transform coefficient; and generating a prediction block for the target block on the basis of the modified neighboring block.

公开(公告)号：US20200288129A1

公开(公告)日：2020-09-10

申请号：US15932206

申请日：2016-08-19

Applicant: LG Electronics Inc.

Inventor： Hilmi E. EGILMEZ ,  Jana Ehmann ,  Onur G. GULERYUZ

IPC: H04N19/12 ,  H04N19/159 ,  H04N19/61 ,  H04N19/18

Abstract: The present invention, with respect to a method of processing video data, provides a method of processing video data, provides a method characterized by comprising the steps of: performing a clustering for the video data; generating at least one data cluster as a result of the clustering; generating at least one Graph laplacian matrix corresponding to the at least one data cluster; performing conversion optimization on the basis of multiple graph-based models, wherein the multiple graph-based models respectively include at least one graph laplacian matrix; and generating an optimized conversion matrix according to the results of performing the conversion optimization.

公开(公告)号：US20190191166A1

公开(公告)日：2019-06-20

申请号：US16301065

申请日：2017-05-12

Applicant: LG Electronics Inc.

Inventor： Jana EHMANN ,  Onur G. GULERYUZ

IPC: H04N19/13 ,  H04N19/124 ,  H04N19/129 ,  H04N19/60 ,  H04N19/176

CPC classification number: H04N19/13 ,  H04N19/124 ,  H04N19/129 ,  H04N19/176 ,  H04N19/60

Abstract: Provided is a method for processing a video signal on the basis of an arbitrary partition transform, the method comprising the steps of: determining a partition set for input data, the partition set indicating a set of partitions divided from a data block on the basis of a scanning pattern; determining a transform matrix set corresponding to the partition set; obtaining an arbitrary partition transform vector for each partition by applying the transform matrix set to the partition set; and obtaining the arbitrary partition transform coefficient for the input data by inverse-mapping the arbitrary partition transform vector.

公开(公告)号：US20190037232A1

公开(公告)日：2019-01-31

申请号：US16074710

申请日：2017-02-02

Applicant: LG ELECTRONICS INC.

Inventor： Jana EHMANN ,  Onur G. GULERYUZ ,  Sehoon YEA

IPC: H04N19/52 ,  H04N19/192 ,  H04N19/126 ,  H04N19/117 ,  H04N19/13 ,  H04N19/147 ,  H04N19/176

CPC classification number: H04N19/52 ,  H04N19/105 ,  H04N19/117 ,  H04N19/124 ,  H04N19/126 ,  H04N19/13 ,  H04N19/147 ,  H04N19/176 ,  H04N19/182 ,  H04N19/192 ,  H04N19/46 ,  H04N19/51 ,  H04N19/567

Abstract: The present invention provides a method for encoding a video signal by using an enhanced prediction signal, the method comprising the steps of: generating a prediction signal for a current block, wherein the prediction signal is generated by applying a prediction weight to a reconstructed pixel of the current block and a pixel of a motion-compensated previously decoded block; obtaining an optimal quantized transform coefficient for the current block through rate-distortion optimization, on the basis of the prediction signal; and performing entropy encoding of the optimal quantized transform coefficient.