公开(公告)号：US12212768B2

公开(公告)日：2025-01-28

申请号：US18203903

申请日：2023-05-31

Applicant: Hyundai Motor Company ,  Kia Corporation ,  Kwangwoon University Industry-Academic Collaboration Foundation

Inventor： Dong Gyu Sim ,  Han Sol Choi ,  Jong Seok Lee ,  Sea Nae Park ,  Seung Wook Park ,  Wha Pyeong Lim

IPC: H04N19/44 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/82

Abstract: A method is provided for decoding a sequence of pictures using a gradual refresh technique. In particular, all areas in one picture are gradually encoded or decoded over a plurality of pictures associated with the picture.

公开(公告)号：US20250016363A1

公开(公告)日：2025-01-09

申请号：US18891707

申请日：2024-09-20

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION

Inventor： Dong Gyu Sim ,  Jong Seok Lee ,  Seung Wook Park ,  Wha Pyeong Lim

IPC: H04N19/53 ,  H04N19/117 ,  H04N19/139 ,  H04N19/176 ,  H04N19/196 ,  H04N19/70

Abstract: Apparatuses decode or encode a picture sequence, some having different resolutions, and transmit a bitstream of video data. The decoding apparatus has at least one processor, which decodes a first syntax element for specifying a reference size of pictures referring to a high-level syntax structure and a second syntax element for specifying a picture size scaled from the reference size. The processor also derives, based on the first and the second syntax elements, at least one offset factor and at least one scale factor representing a scale difference between a current picture including a current block to be decoded and a reference picture referred to by the current block. The processor generates a prediction block of the current block from the reference picture by using the motion vector of the current block, the at least one scale factor, and the at least one offset factor.

公开(公告)号：US20240428466A1

公开(公告)日：2024-12-26

申请号：US18820863

申请日：2024-08-30

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  DIGITALINSIGHTS INC.

Inventor： Yong Jo Ahn ,  Jong Seok Lee ,  Jin Heo ,  Seung Wook Park

IPC: G06T9/00

Abstract: A lidar point cloud coding method and apparatus convert a point cloud to video signals by using features of a lidar sensor to improve encoding efficiency of lidar point cloud coding. The lidar point cloud coding method and the apparatus encode/decode the converted video signals.

公开(公告)号：US20240296591A1

公开(公告)日：2024-09-05

申请号：US18665041

申请日：2024-05-15

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  DIGITALINSIGHTS INC.

Inventor： Yong Jo Ahn ,  Jong Seok Lee ,  Jin Heo ,  Seung Wook Park

IPC: G06T9/00

CPC classification number: G06T9/001

Abstract: A LiDAR point cloud coding method and a device use pointwise prediction. The point cloud coding method and the device predict a current point to be encoded/decoded by using a previously decoded point cloud to improve the coding efficiency of LiDAR point cloud coding.

公开(公告)号：US20240276027A1

公开(公告)日：2024-08-15

申请号：US18644591

申请日：2024-04-24

Applicant: Hyundai Motor Company ,  Kia Corporation ,  Kwangwoon University Industry-Academic Collaboration Foundation

Inventor： Dong Gyu Sim ,  Sea Nae Park ,  Jong Seok Lee ,  Seung Wook Park ,  Wha Pyeong Lim

IPC: H04N19/91 ,  H04N19/103 ,  H04N19/13 ,  H04N19/186 ,  H04N19/70

CPC classification number: H04N19/91 ,  H04N19/103 ,  H04N19/13 ,  H04N19/186 ,  H04N19/70

Abstract: A method is executed to efficiently operate a bin buffer to limit a bin-to-bit ratio in entropy encoding and decoding related to bitstream generation and parsing. In addition, a method of configuring a list includes various entropy encoding/decoding methods and adaptively uses the entropy encoding/decoding methods for each basic unit of entropy encoding/decoding.

公开(公告)号：US20240244247A1

公开(公告)日：2024-07-18

申请号：US18620697

申请日：2024-03-28

Applicant: Hyundai Motor Company ,  Kia Corporation ,  Kwangwoon University Industry-Academic Collaboration Foundation

Inventor： Dong Gyu Sim ,  Jong Seok Lee ,  Sea Nae Park ,  Seung Wook Park ,  Wha Pyeong Lim

IPC: H04N19/46 ,  H04N19/105 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70 ,  H04N19/82

CPC classification number: H04N19/46 ,  H04N19/105 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70 ,  H04N19/82

Abstract: A video decoding method and a video decoding apparatus are configured to decode video. To efficiently code residual blocks obtained from block-based motion compensation, a video encoding apparatus and the video decoding apparatus divide a relevant residual block of a current block into two subblocks in a horizontal or vertical direction and encode one residual subblock alone out of the two residual subblocks.

公开(公告)号：US11962777B2

公开(公告)日：2024-04-16

申请号：US17988599

申请日：2022-11-16

Applicant: Hyundai Motor Company ,  Kia Corporation ,  Kwangwoon University Industry-Academic Collaboration Foundation

Inventor： Dong Gyu Sim ,  Sea Nae Park ,  Jong Seok Lee ,  Seung Wook Park ,  Wha Pyeong Lim

IPC: H04N19/124 ,  H04N19/105 ,  H04N19/176 ,  H04N19/18

CPC classification number: H04N19/124 ,  H04N19/105 ,  H04N19/176 ,  H04N19/18

Abstract: An inverse quantization method is implemented by an inverse quantization device, the method configured for acquiring quantized coefficients, estimating a quantization parameter in quantization groups or quantization parameter prediction group units, generating an inverse quantization matrix for adaptive quantization, and generating transform coefficients from the quantized coefficients using the quantization parameter and the inverse quantization matrix.

公开(公告)号：US20240031612A1

公开(公告)日：2024-01-25

申请号：US18375170

申请日：2023-09-29

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  DIGITALINSIGHTS INC.

Inventor： Yong Jo Ahn ,  Jong Seok Lee ,  Seung Wook Park

IPC: H04N19/86 ,  H04N19/463 ,  H04N19/42 ,  H04N19/182 ,  H04N19/119 ,  H04N19/176 ,  H04N19/154 ,  H04N19/136

CPC classification number: H04N19/86 ,  H04N19/463 ,  H04N19/42 ,  H04N19/182 ,  H04N19/119 ,  H04N19/176 ,  H04N19/154 ,  H04N19/136

Abstract: A method and an apparatus for video coding using pre-processing and post-processing are disclosed. The video coding method and the apparatus may model a noise model or a subjective video quality model for a current video, may pre-process and post-process a video on the basis of the model, and may signal information of the model.

公开(公告)号：US20240022766A1

公开(公告)日：2024-01-18

申请号：US18374510

申请日：2023-09-28

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  DIGITALINSIGHTS INC.

Inventor： Yong Jo Ahn ,  Jong Seok Lee ,  Seung Wook Park

IPC: H04N19/597 ,  G06T7/20 ,  H04N19/139 ,  H04N19/172 ,  H04N19/184 ,  H04N19/59

CPC classification number: H04N19/597 ,  G06T7/20 ,  H04N19/139 ,  H04N19/172 ,  H04N19/184 ,  H04N19/59

Abstract: A dynamic mesh encoding/decoding method and the apparatus use motion information present between a plurality of frames constituting a dynamic mesh in order to improve coding efficiency by removing temporal redundancy of the dynamic mesh.

公开(公告)号：US20230410374A1

公开(公告)日：2023-12-21

申请号：US18242391

申请日：2023-09-05

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION ,  DIGITALINSIGHTS INC.

Inventor： Yong Jo Ahn ,  Jong Seok Lee ,  Seung Wook Park

IPC: G06T9/00 ,  G06T17/20 ,  G06T15/04

CPC classification number: G06T9/001 ,  G06T17/20 ,  G06T15/04

Abstract: A mesh compression method and an apparatus utilize point cloud compression. The mesh compression method and apparatus transform the three-dimensional mesh into a point cloud and then compress/reconstruct the three-dimensional mesh using a point cloud compression method to improve the coding efficiency of a three-dimensional mesh.