公开(公告)号：US20220113414A1

公开(公告)日：2022-04-14

申请号：US17204369

申请日：2021-03-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jisan LEE ,  Inoh HWANG

IPC: G01S17/32 ,  G01S17/894 ,  G01S7/481

Abstract: A distance measuring device and a method of operating the same are provided. The distance measuring device may include a transmitter configured to emit a sensing signal toward a target object based on a transmission signal; a receiver configured to detect the sensing signal and output a reception signal corresponding to the sensing signal; and a processor configured to correct the reception signal using a baseline having a peak value that varies according to a time index, and determine a distance to the target object based on a cross-correlation signal indicating a cross-correlation between the corrected reception signal and the transmission signal.

公开(公告)号：US20180089847A1

公开(公告)日：2018-03-29

申请号：US15713149

申请日：2017-09-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jisan LEE ,  Yonghwa PARK

IPC: G06T7/50 ,  G01S7/486

CPC classification number: G06T7/50 ,  G01S7/4865 ,  G01S7/4915 ,  G01S7/493 ,  G01S13/006 ,  G01S15/006 ,  G01S17/006 ,  G01S17/36 ,  G01S17/89 ,  G06T5/001 ,  G06T5/50 ,  G06T2207/10028

Abstract: An image processing method for reducing distortion of a depth image may include: obtaining a plurality of original images based on light beams which are emitted to and reflected from a subject; determining original depth values of original depth images obtained from the plurality of original images, based on phase delays of the light beams, the reflected light beams comprising multi-reflective light beams that distort the original depth values; determining imaginary intensities of the multi-reflective light beams with respective to each phase of the multi-reflective light beams, based on regions having intensities greater than a predetermined intensity in the original depth images; correcting the original depth values of the original depth images, based on the imaginary intensities of the multi-reflective light beams; and generating corrected depth images based on the corrected original depth values.

公开(公告)号：US20210055392A1

公开(公告)日：2021-02-25

申请号：US16782779

申请日：2020-02-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jisan LEE ,  Jungwoo KIM

IPC: G01S7/4865 ,  G01S17/26 ,  G01S7/48 ,  G01S7/484

Abstract: A light detection and ranging (LiDAR) device may include: an optical phased array configured to modulate a phase of light incident on the optical phased array and emit the light; a first photodetector configured to detect, as a reference light, the light emitted from the optical phased array in a first direction toward the first photodetector, and generate a reference signal based on the reference light; a second photodetector configured to detect, as a target light including information about an object, the light emitted from the optical phased array in a second direction toward the object, and generate a target signal based on the target light; and a processor configured to determine a distance between the LiDAR device and the object based on a cross-correlation between the reference signal and the target signal.

公开(公告)号：US20240036206A1

公开(公告)日：2024-02-01

申请号：US18482306

申请日：2023-10-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jisan LEE

IPC: G01S17/89 ,  G01S7/484 ,  G01S7/4865

CPC classification number: G01S17/89 ,  G01S7/484 ,  G01S7/4865

Abstract: A method of operating a light detection and ranging (LiDAR) device includes obtaining receiving signals corresponding to reference laser pulses generated from a reference signal; obtaining a main receiving signal having a maximum value among the receiving signals with respect to a time point; correcting a value of a sub-receiving signal included in the receiving signals at the time point based on the maximum value of the main receiving signal; and obtaining a time of flight (ToF) of a laser pulse corresponding to the sub-receiving signal based on a correlation between the corrected value of the sub-receiving signal and the reference signal.

公开(公告)号：US20180011490A1

公开(公告)日：2018-01-11

申请号：US15644173

申请日：2017-07-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jangwoo YOU ,  Namseop KWON ,  Yonghwa PARK ,  Jisan LEE ,  Myungjae JEON

IPC: G05D1/00 ,  G01S17/02 ,  G01S7/481 ,  G01S17/93 ,  G05D1/02

CPC classification number: G05D1/0088 ,  G01S7/4814 ,  G01S17/026 ,  G01S17/89 ,  G01S17/936 ,  G05D1/0231 ,  Y10S901/47

Abstract: Provided are non-uniform light-emitting lidar (light detection and ranging) apparatuses and autonomous robots including the same. A lidar apparatus may include a light source configured to emit light, an optical unit arranged on an optical path of light emitted from the light source and configured to change an optical profile of the light to be non-uniform, and a 3D sensor configured to sense location of an object by receiving reflection light from the object.

公开(公告)号：US20170184722A1

公开(公告)日：2017-06-29

申请号：US15209123

申请日：2016-07-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yonghwa PARK ,  Heesun YOON ,  Jisan LEE

IPC: G01S17/32 ,  G01S7/491 ,  G01S17/89

CPC classification number: G01S17/32 ,  G01S7/4915 ,  G01S17/89

Abstract: A method of acquiring distance information is provided. The method includes determining a projecting order of different projected lights to be sequentially projected onto an object, based on a position of the object and/or an external input, sequentially projecting the different projected lights onto the object in the determined projecting order, obtaining modulated reflected lights by modulating the reflected lights reflected by the object; and acquiring information about a distance between the device and the object based on the modulated reflected lights.