公开(公告)号：US20180041227A1

公开(公告)日：2018-02-08

申请号：US15667465

申请日：2017-08-02

Applicant: Samsung Electronics Co., Ltd. ,  Korea University Research and Business Foundation

Inventor： Myeong-Woo LEE ,  Tae Hyun KIM ,  Jong Hyun BAIK ,  Jun HEO

IPC: H03M13/11 ,  H03M13/29 ,  H03M13/00

CPC classification number: H03M13/1125 ,  H03M13/1117 ,  H03M13/114 ,  H03M13/2948 ,  H03M13/616 ,  H03M13/6502

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). Disclosed is an apparatus for performing an iteration decoding scheme for a Low Density Parity Check (LDPC) code. The apparatus includes a receiver configured to receive an encoded signal based on a parity matrix set for a plurality of variable nodes including a first variable node with a first degree and a second variable node with a second degree. The apparatus further includes a processor configured to determine at least one variable node based on a first threshold determined according to the first degree and a second threshold determined according to the second degree among the plurality of variable nodes and to generate decoded data from the signal based on the at least one determined variable node.

公开(公告)号：US20240161243A1

公开(公告)日：2024-05-16

申请号：US18221989

申请日：2023-07-14

Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Jong Ok KIM ,  Tae Hyun KIM ,  Jeong Hyeok PARK

IPC: G06T5/50

CPC classification number: G06T5/50 ,  G06T2207/10024 ,  G06T2207/10048 ,  G06T2207/10152 ,  G06T2207/20081 ,  G06T2207/20084 ,  G06T2207/20221

Abstract: Disclosed are a low-light image improvement apparatus and method. The low-light image improvement apparatus includes: an image component decomposition network module that analyzes a light image, a low-light image, and a mid-light image to decompose reflectance and illumination, respectively, wherein the mid-light image is generated using the light image and the low-light image; and a component improvement network module configured to include a mid-teacher network model that extracts a first feature map with improved reflectance and illumination of the mid-light image using the reflectance and illumination of the light image and a student network module that distills the extracted first feature map and then extracts a second feature map for the reflectance and illumination of the low-light image based on the distilled first feature map and acquires an image with improved light by reflecting a structural component of a multi-band near-infrared image in the second feature map.

公开(公告)号：US20190165812A1

公开(公告)日：2019-05-30

申请号：US16122020

申请日：2018-09-05

Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Jun HEO ,  Tae Hyun KIM

IPC: H03M13/11

Abstract: The method for shuffled decoding of LDPC codes includes calculating check-variable mutual information which is mutual information of a message propagating from a plurality of check nodes to a plurality of variable nodes by a check-variable mutual information calculating unit, calculating variable-check mutual information which is mutual information of a message propagating from the plurality of variable nodes to the plurality of check nodes connected to the plurality of variable nodes based on the check-variable mutual information by a variable-check mutual information calculating unit, and Calculating the entire mutual information which is a sum of variable-check mutual information for each of the plurality of variable nodes and determines an operation order of a variable node having the largest entire mutual information among the plurality of variable nodes to be next, by an operation order determining unit.