公开(公告)号：US20240125923A1

公开(公告)日：2024-04-18

申请号：US18183881

申请日：2023-03-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jong-Sok KIM ,  Sungdo CHOI ,  Seung Tae KHANG ,  Jinyong JEON ,  Young Rae CHO

IPC: G01S13/931 ,  G06V10/82 ,  G06V20/58

CPC classification number: G01S13/931 ,  G06V10/82 ,  G06V20/58

Abstract: A method and device for object recognition for information collected from a sensor of a moving object are disclosed. The method may include identifying a target with a confidence level of recognition accuracy less than a threshold, based on first sensing information collected from a moving object, obtaining second sensing information on the target from an interworking moving object, synchronizing the first sensing information and the second sensing information based on time information included in the first sensing information and time information included in the second sensing information, and training a neural network for estimating recognition information of the target from the first synchronized sensing information by using information on the target included in the second synchronized sensing information as ground truth data.

公开(公告)号：US20240053435A1

公开(公告)日：2024-02-15

申请号：US18496145

申请日：2023-10-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungdo CHOI ,  Jong-Sok KIM ,  Young Rae CHO

IPC: G01S7/35 ,  G01S13/536 ,  G01S13/931 ,  G01S13/58

CPC classification number: G01S7/354 ,  G01S7/356 ,  G01S13/536 ,  G01S13/931 ,  G01S13/584

Abstract: A radar signal processing method includes: extracting a first chirp sequence signal of a first carrier frequency and a second chirp sequence signal of a second carrier frequency from a radar signal received through an array antenna in a radar sensor; generating a first range-Doppler map by performing frequency conversion on the first chirp sequence signal; detecting a first target cell corresponding to a first target in the first range-Doppler map; determining a first ambiguous Doppler velocity of the first target based on first frequency information of the first target cell; determining a first range of an unambiguously measurable Doppler velocity through the first chirp sequence signal; estimating second ambiguous Doppler velocities based on the first ambiguous Doppler velocity and the first range; and determining a Doppler velocity of the first target by performing partial frequency conversion on the second chirp sequence signal based on the second ambiguous Doppler velocities.

公开(公告)号：US20240125925A1

公开(公告)日：2024-04-18

申请号：US18321351

申请日：2023-05-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungdo CHOI ,  Seung Tae KHANG ,  Jong-Sok KIM ,  Jinyong JEON ,  Young Rae CHO

IPC: G01S13/931 ,  G01S7/35 ,  G01S13/42 ,  G01S13/58

CPC classification number: G01S13/931 ,  G01S7/356 ,  G01S13/42 ,  G01S13/584

Abstract: A method of predicting a movement of a cut-in object, including separating a Doppler velocity corresponding to at least one wheel of the cut-in object from radar data based on a velocity of the cut-in object, determining a position of the at least one wheel of the cut-in object based on the Doppler velocity, generating at least one of first movement information related to a horizontal movement of the cut-in object or second movement information related to a moving direction of the cut-in object based on the position of the at least one wheel, and determining a position of the cut-in object based on at least one of the first movement information or the second movement information.

公开(公告)号：US20220155411A1

公开(公告)日：2022-05-19

申请号：US17331074

申请日：2021-05-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungdo CHOI ,  Jong-Sok KIM ,  Young Rae CHO

IPC: G01S7/35 ,  G01S13/58 ,  G01S13/931 ,  G01S13/536

Abstract: A radar signal processing method includes: extracting a first chirp sequence signal of a first carrier frequency and a second chirp sequence signal of a second carrier frequency from a radar signal received through an array antenna in a radar sensor; generating a first range-Doppler map by performing frequency conversion on the first chirp sequence signal; detecting a first target cell corresponding to a first target in the first range-Doppler map; determining a first ambiguous Doppler velocity of the first target based on first frequency information of the first target cell; determining a first range of an unambiguously measurable Doppler velocity through the first chirp sequence signal; estimating second ambiguous Doppler velocities based on the first ambiguous Doppler velocity and the first range; and determining a Doppler velocity of the first target by performing partial frequency conversion on the second chirp sequence signal based on the second ambiguous Doppler velocities.

公开(公告)号：US20250147169A1

公开(公告)日：2025-05-08

申请号：US18609301

申请日：2024-03-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Young Rae CHO ,  Seung Tae KHANG ,  Jong-Sok KIM ,  Jinyong JEON ,  Ho-Ik CHOI

IPC: G01S13/58 ,  G01S7/35 ,  G01S7/41 ,  G01S13/931

Abstract: A method of measuring a velocity vector of a target object is provided. The method includes: obtaining pieces of radar data obtained by detecting the target object; based on the pieces of radar data, extracting velocity vectors for respective points that correspond to the detected target object; and calculating the velocity vector of the target object based on the velocity vectors.

公开(公告)号：US20250131736A1

公开(公告)日：2025-04-24

申请号：US18612385

申请日：2024-03-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jaeseok CHOI ,  Dongwook LEE ,  ByeongJu LEE ,  Younghwa JUNG ,  Young Rae CHO

IPC: G06V20/58 ,  G06V10/77

Abstract: A processor-implemented method with object recognition includes obtaining sensor data comprising points representing a surrounding environment of a sensor, detecting, from the sensor data, a shaded region in which the points are not generated due to occlusion by a surrounding object, generating feature data using the shaded region, and performing object recognition for the surrounding environment of the sensor based on the feature data.

公开(公告)号：US20240192350A1

公开(公告)日：2024-06-13

申请号：US18329814

申请日：2023-06-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seung Tae KHANG ,  Jinyong JEON ,  Sungdo CHOI ,  Jong-Sok KIM ,  Young Rae CHO

IPC: G01S13/46 ,  G01S7/03 ,  G01S7/295 ,  G01S7/40

CPC classification number: G01S13/46 ,  G01S7/032 ,  G01S7/295 ,  G01S7/4008 ,  G01C9/00 ,  G01S2013/468

Abstract: A processor implement method may include determining a target azimuth angle of the target object based on an initial radar signal received through an array antenna of a radar sensor, generating a correction radar signal by correcting a phase of the initial radar signal based on the target azimuth angle, and determining an elevation angle of the target object based on the correction radar signal.

公开(公告)号：US20240142575A1

公开(公告)日：2024-05-02

申请号：US18297767

申请日：2023-04-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sungdo CHOI ,  Jong-Sok KIM ,  Seung Tae KHANG ,  Jinyong JEON ,  Young Rae CHO

IPC: G01S7/41 ,  G01S7/35 ,  G01S13/58 ,  G01S13/72 ,  G01S13/89

CPC classification number: G01S7/417 ,  G01S7/356 ,  G01S7/412 ,  G01S13/584 ,  G01S13/723 ,  G01S13/89

Abstract: A method including clustering second point clouds comprised in second point cloud data of a second timepoint, obtaining output data corresponding to one or more second clusters generated as a result of the clustering by applying the second point clouds to a pretrained neural network, determining whether at least one of the one or more second clusters is a target object based on a reliability factor, tracking first clusters corresponding to the target object in first point cloud data of one or more first timepoints prior to the second timepoint, and training of the pretrained neural network based on the output data corresponding to the first clusters and the first point clouds for each first cluster determined according to a result of the tracking.

公开(公告)号：US20230213614A1

公开(公告)日：2023-07-06

申请号：US17940334

申请日：2022-09-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： SUNGDO CHOI ,  Young Rae CHO ,  HYUNWOONG CHO

IPC: G01S7/35 ,  G01S13/58 ,  G01S7/41 ,  G01S13/931

CPC classification number: G01S7/354 ,  G01S13/584 ,  G01S7/356 ,  G01S7/415 ,  G01S13/931

Abstract: A method and apparatus with radar signal processing are included. A method includes transmitting, through transmission antenna elements, a radar signal at a transmission time interval corresponding to a time division multiplexing (TDM) latency, receiving a reflected signal of the radar signal through reception antenna elements, determining directions of arrival (DOAs) respectively corresponding to the transmission antenna elements by classifying radar data corresponding to the reflected signal, wherein the classifying is based on the transmission time interval, determining an unambiguous element of a phase error element by applying an ambiguous Doppler velocity that is based on the radar data to the phase error element of the individual DOA data, and determining integrated DOA data corresponding to the transmission antenna elements by integrating the individual DOA data by suppressing an ambiguous element of the phase error element.