公开(公告)号：US20220088696A1

公开(公告)日：2022-03-24

申请号：US16950920

申请日：2020-11-18

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Hoe Min KIM ,  Sung Kuk CHUN ,  Dong Kill LEE ,  Kwang Hoon LEE ,  Seon Man KIM

IPC: B23K9/095 ,  G06T7/70

Abstract: According to an embodiment, an object tracking device in a welding process tracks and outputs a predetermined object in a welding image. The object tracking device comprises a camera device capturing the welding image including a base material and a welding torch for welding the base material, a controller receiving a plurality of camera control parameter-varied images from the camera device, identifying the predetermined object in the received images, and generating an object tracking image, the plurality of camera control parameter-varied images having varied camera control parameters of the camera device, and an output device outputting the welding image captured by the camera device, the plurality of images received by the controller, or the object tracking image generated by the controller.

公开(公告)号：US20250082197A1

公开(公告)日：2025-03-13

申请号：US18488099

申请日：2023-10-17

Applicant: Korea Photonics Technology Institute

Inventor： Seon Man KIM ,  Min Kyu PARK ,  Sung Joon KIM ,  Kwang Hoon LEE

IPC: A61B3/113 ,  G02B27/00 ,  G02B27/01 ,  G02B27/10 ,  G06T19/00

Abstract: Disclosed are an AR optical system for measurement of ocular dyskinesia with improved quality of photographed images, and an AR apparatus including the same. According to one aspect of the present disclosure, there are provided an AR optical system for measurement of ocular dyskinesia with improved quality of photographed images by resolving the problem of uneven brightness and darkness occurring in the images due to structural problems, and an AR apparatus including the same.

公开(公告)号：US20240144462A1

公开(公告)日：2024-05-02

申请号：US18495880

申请日：2023-10-27

Applicant: Korea Photonics Technology Institute

Inventor： Hoe Min KIM ,  Sung Kuk CHUN ,  Seon Man KIM ,  Kwang Hoon LEE ,  Jeong Rok YUN ,  Un Yong KIM

IPC: G06T7/00 ,  G06T7/11 ,  G06V20/64

CPC classification number: G06T7/0004 ,  G06T7/11 ,  G06V20/64 ,  G06T2200/04 ,  G06T2207/10028

Abstract: Disclosed are an apparatus and system for evaluating a welding condition on the basis of three-dimensional data. An aspect of the present embodiment provides an apparatus for evaluating a welding condition, the apparatus including a communication unit configured to receive a three-dimensional image for an evaluation target from the outside, a base material recognition unit configured to recognize a base material from the three-dimensional image for the evaluation target by using a point cloud, a bead extraction unit configured to extract a welding bead welded between the base materials, a bead cross-section acquisition unit configured to acquire cross-sections at preset intervals for the extracted welding bead, and a profile analysis unit configured to analyze a profile of the welding bead for the cross-section acquired by the bead cross-section acquisition unit.

公开(公告)号：US20230283972A1

公开(公告)日：2023-09-07

申请号：US18196047

申请日：2023-05-11

Applicant: Korea Photonics Technology Institute

Inventor： Seon Man KIM ,  Kwang Hoon LEE

IPC: H04R25/00 ,  H04S3/00

CPC classification number: H04R25/505 ,  H04S3/008 ,  H04R25/604 ,  H04R25/609 ,  H04R2225/41 ,  H04S2400/01

Abstract: A hearing aid with the variable number of channels includes: a microphone that receives a sound signal; an AD converter that converts the sound signal input from the microphone into a digital signal and outputs the converted digital signal; a controller that determines a filter bank channel for processing the digital signal output from the AD converter; a buffer unit that delays the digital signal based on the determined filter bank channel; a signal processor that includes at least one filter bank channel, synthesizes the digital signal using the determined filter bank channel and outputs the synthesized digital signal; a DA converter that converts the digital signal into the sound signal and outputs the converted sound signal; and a speaker that outputs the sound signal output from the DA converter, in which the controller determines the filter bank channel for processing the digital signal based on a preset condition.