公开(公告)号：US20190162657A1

公开(公告)日：2019-05-30

申请号：US16263576

申请日：2019-01-31

Applicant: Konica Minolta Laboratory U.S.A., Inc.

Inventor： Leiming Wang ,  Ting Xu

IPC: G01N21/3504 ,  G01M3/38

CPC classification number: G01N21/3504 ,  G01M3/38 ,  G01N2021/3509 ,  G01N2021/3531 ,  G06T7/0004 ,  G06T2207/10048 ,  G06T2207/30108

Abstract: A gas concentration-length quantification method, including: acquiring a first image including a gas plume with a camera; identifying and segmenting pixels corresponding to the gas plume in the first image; generating a background image corresponding to the first image using an image inpainting algorithm with the first image and positional information of the segmented pixels corresponding to the gas plume as inputs; calculating a gas concentration-length for each pixel corresponding to the gas plume in the first image, based on the first image and the background image data; and triggering an alert when the gas concentration-length for at least one pixel exceeds a threshold level.

公开(公告)号：US10234380B1

公开(公告)日：2019-03-19

申请号：US15720708

申请日：2017-09-29

Applicant: Konica Minolta Laboratory U.S.A., Inc.

Inventor： Leiming Wang ,  Ting Xu

IPC: G01N21/3504 ,  G01M3/38

Abstract: A gas concentration-length quantification method may include acquiring a first image including a gas plume with a camera; identifying and segmenting pixels corresponding to the gas plume in the first image; creating a mask image corresponding to the first image, where only pixels of the mask image corresponding to the gas plume in the first image have non-zero values; generating a background image corresponding to the first image using an image inpainting algorithm with the first image and the mask image as inputs; calculating a gas concentration-length for each pixel corresponding to the gas plume in the first image, based on the first image and the background image data; and triggering an alert when the gas concentration-length for at least one pixel exceeds a threshold level.

公开(公告)号：US10852208B2

公开(公告)日：2020-12-01

申请号：US16099648

申请日：2017-06-21

Applicant: Konica Minolta Laboratory U.S.A., Inc.

Inventor： Leiming Wang

IPC: G01M3/04 ,  G01M3/38 ,  H04N5/33 ,  G01J5/00 ,  G01M3/00 ,  G01N21/3504 ,  H04N5/225

Abstract: A method of quantifying gas leak rate includes receiving image frames acquired with a camera and including a plume from a gas leak source, determining a real-world size that each pixel represents, identifying pixels corresponding to the plume in a first image frame, calculating gas concentration path lengths of the plume for the pixels in the first image frame, calculating, based on the first image frame and a second image frame, an image velocity field of the plume including displacement vectors for the pixels, identifying, within the first image, a closed boundary enclosing the gas leak source of the plume, and calculating a first gas leak rate in the first image frame by calculating a volume rate of the plume flowing across the closed boundary based on the image velocity field, the gas concentration path lengths, and a time interval between the first and the second image frames.

公开(公告)号：US10684216B2

公开(公告)日：2020-06-16

申请号：US15942097

申请日：2018-03-30

Applicant: Konica Minolta Laboratory U.S.A., Inc.

Inventor： Leiming Wang

IPC: G01N21/31 ,  G01N21/3504 ,  G01M3/38

Abstract: A gas concentration-length quantification method may include: acquiring a multi-spectral image of detected radiance including a plurality of pixels using a multi-spectral optical gas imaging camera; estimating a background radiance for at least one of the pixels; calculating a gas concentration-length for the at least one of the pixels based on the detected radiance and the estimated background radiance; and triggering an alert when each alert condition in a list of alert conditions is satisfied. A multi-spectral configuration of the camera may include a reference band that is outside an absorption window of a target gas and an active band that includes at least a portion of the absorption window. Estimating the background radiance may include determining a model relating a detected radiance of the active band to a detected radiance of the reference band and using the model to estimate the background radiance for the active band.

公开(公告)号：US20190101490A1

公开(公告)日：2019-04-04

申请号：US15720708

申请日：2017-09-29

Applicant: Konica Minolta Laboratory U.S.A., Inc.

Inventor： Leiming Wang ,  Ting Xu

IPC: G01N21/3504 ,  G01M3/38

Abstract: A gas concentration-length quantification method may include acquiring a first image including a gas plume with a camera; identifying and segmenting pixels corresponding to the gas plume in the first image; creating a mask image corresponding to the first image, where only pixels of the mask image corresponding to the gas plume in the first image have non-zero values; generating a background image corresponding to the first image using an image inpainting algorithm with the first image and the mask image as inputs; calculating a gas concentration-length for each pixel corresponding to the gas plume in the first image, based on the first image and the background image data; and triggering an alert when the gas concentration-length for at least one pixel exceeds a threshold level.

公开(公告)号：US20170045443A1

公开(公告)日：2017-02-16

申请号：US15176480

申请日：2016-06-08

Applicant: Konica Minolta Laboratory U.S.A., Inc.

Inventor： Leiming Wang ,  Po-Chieh Hung

IPC: G01N21/3504 ,  G01J3/42

CPC classification number: G01N21/3504 ,  G01J3/0264 ,  G01J3/36 ,  G01J3/42 ,  G01J2003/1213 ,  G01J2003/1239 ,  G01N33/0047 ,  G01N2201/124

Abstract: A system and method for multi-spectral gas concentration analysis that includes using a library of multiple sets of optimized spectral sensitivities prepared in advance, and a multi-spectral IR gas analyzer tuned to a set of optimized spectral sensitivity. The multi-spectral IR gas analyzer measures spectral absorption of gas using one or more different sets of optimized spectral sensitivities.

Abstract translation: 一种用于多光谱气体浓度分析的系统和方法，其包括使用预先制备的多组优化光谱灵敏度的文库，以及调整到一组优化光谱灵敏度的多光谱红外气体分析仪。 多光谱红外气体分析仪使用一个或多个不同的优化光谱灵敏度来测量气体的光谱吸收。

公开(公告)号：US20160190518A1

公开(公告)日：2016-06-30

申请号：US14984857

申请日：2015-12-30

Applicant: Konica Minolta Laboratory U.S.A., Inc.

Inventor： Leiming Wang

IPC: H01L51/52 ,  H01L51/50

CPC classification number: H01L51/5268 ,  H01L51/5004 ,  H01L51/5234 ,  H01L51/5262 ,  H01L51/5275 ,  H01L2251/558

Abstract: A light emitting device includes a substrate, a first electrode disposed on the substrate, a light emission layer (EML) disposed on the first electrode, a second electrode disposed on the EML, and a capping layer disposed on the second electrode. A thickness of the second electrode is not more than 50 nm, a refractive index of the capping layer is less than a refractive index of the EML, and the EML and the second electrode are separated by a distance not more than 100 nm.

Abstract translation: 发光器件包括衬底，设置在衬底上的第一电极，设置在第一电极上的发光层（EML），设置在EML上的第二电极和设置在第二电极上的覆盖层。 第二电极的厚度不大于50nm，覆盖层的折射率小于EML的折射率，并且EML和第二电极被分离不大于100nm的距离。