公开(公告)号：US20230161653A1

公开(公告)日：2023-05-25

申请号：US17965537

申请日：2022-10-13

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Nack Woo KIM ,  Byung Tak LEE ,  Jun Gi LEE ,  Hyun Yong LEE

IPC: G06F11/00 ,  G06N3/08 ,  G06N3/04 ,  G06K9/62

CPC classification number: G06F11/008 ,  G06N3/08 ,  G06N3/04 ,  G06K9/6234

Abstract: A method of managing system health is provided. The method includes calculating a reconstruction missing value with respect to the second domain data, determining a degree of degradation of the system on the basis of the reconstruction missing value, predicting a second remaining useful life (RUL) prediction value {tilde over (y)} of the system on the basis of the second domain data, based on a result of the determination of the degree of degradation, optimizing a degradation compensation function on the basis of a distribution of a first RUL prediction value y of the system predicted based on the first domain data in a pre-learning process of the diagnosis model, and predicting a final RUL prediction value {tilde over (y)}′ obtained by compensating for the second RUL prediction value {tilde over (y)}, by using the optimized degradation compensation function.

公开(公告)号：US20220156513A1

公开(公告)日：2022-05-19

申请号：US17190597

申请日：2021-03-03

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hyun Yong LEE ,  Nack Woo KIM ,  Sang Jun PARK ,  Byung Tak LEE ,  Jun Gi LEE

IPC: G06K9/62 ,  G06T7/11 ,  G06T5/50

Abstract: Provided is a method of localizing an anomaly in a target image. The method includes training a reconstruction model using a normal image, deriving a reconstructed image by applying a target image, which is subject to detection, to the trained reconstruction model, generating an anomaly map on the basis of a result of comparing the reconstructed image and the target image, and localizing an anomaly through the generated anomaly map.