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：US10715802B2

公开(公告)日：2020-07-14

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: H04N19/176 ,  H04N19/134 ,  H04N19/11 ,  H04N19/13 ,  H04N19/85 ,  H04N19/90 ,  H04N19/96 ,  H04N19/91

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：US10893274B2

公开(公告)日：2021-01-12

申请号：US16301065

申请日：2017-05-12

Applicant: LG Electronics Inc.

Inventor： Jana Ehmann ,  Onur G. Guleryuz

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

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：US10785499B2

公开(公告)日：2020-09-22

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 ,  H04N19/176 ,  H04N19/13 ,  H04N19/124 ,  H04N19/567 ,  H04N19/105 ,  H04N19/46 ,  H04N19/51 ,  H04N19/182 ,  H04N19/117 ,  H04N19/126 ,  H04N19/147 ,  H04N19/192

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.

公开(公告)号：US12088804B2

公开(公告)日：2024-09-10

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

CPC classification number: 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：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：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：US10911783B2

公开(公告)日：2021-02-02

申请号：US16301078

申请日：2017-05-12

Applicant: LG Electronics Inc.

Inventor： Jana Ehmann ,  Onur G. Guleryuz

IPC: H04N19/61 ,  H04N19/176 ,  H04N19/13 ,  H04N19/124 ,  H04N19/70 ,  H04N19/182 ,  H04N19/18 ,  H04N19/126 ,  H04N19/157 ,  H04N19/593 ,  H04N19/46

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.