公开(公告)号：US12104955B2

公开(公告)日：2024-10-01

申请号：US17649944

申请日：2022-02-04

Applicant: THE BOEING COMPANY

Inventor： Ely V. Soto ,  Aleksandar Jovancevic

IPC: G01J3/40 ,  G01R23/16 ,  G06N3/04 ,  G06T7/00 ,  G01J3/28 ,  G06N20/00

CPC classification number: G01J3/40 ,  G01R23/16 ,  G06N3/04 ,  G06T7/0002 ,  G01J3/2823 ,  G06N20/00 ,  G06T2207/20084

Abstract: A method of signal processing includes receiving samples of a signal and processing the samples using a time-windowed transform function to generate spectral data corresponding to each time window. The method includes generating first spectrogram data based on magnitudes of the spectral data and generating second spectrogram data based on phase differences of the spectral data. The method further includes combining the first spectrogram data and the second spectrogram data to generate a combined spectrogram and processing the combined spectrogram to generate output.

公开(公告)号：US20230062938A1

公开(公告)日：2023-03-02

申请号：US17820946

申请日：2022-08-19

Applicant: X Development LLC

Inventor： Gearoid Murphy ,  Alexander Holiday ,  Diosdado Banatao ,  Allen Zhao ,  Shruti Badhwar

IPC: G06V10/58 ,  G06V20/64 ,  G06V10/56 ,  G06V10/774 ,  G06V10/80 ,  G01J3/28 ,  G01J3/40

Abstract: Methods and systems for using multiple hyperspectral cameras sensitive to different wavelengths to predict characteristics of objects for further processing, including recycling, are described. The multiple hyperspectral images can be used to predict higher resolution spectra by using a trained machine learning model. The higher resolution spectra may be more easily analyzed to sort plastics into a recyclability category. The hyperspectral images may also be used to identify and analyze dark or black plastics, which are challenging for SWIR, MWIR, and other wavelengths. The machine learning model may also predict the base polymers and contaminants of plastic objects for recycling. The hyperspectral images may be used to predict recyclability and other characteristics using a trained machine learning model.

公开(公告)号：US11187580B2

公开(公告)日：2021-11-30

申请号：US16949830

申请日：2020-11-16

Applicant: Regents of the University of Minnesota

Inventor： Robert Vince ,  Swati Sudhakar More ,  James Melvin Beach

IPC: G01J3/40 ,  G01J3/28 ,  G01J3/02

Abstract: In general, an imaging system to synchronously record a spatial image and a spectral image of a portion of the spatial image is described. In some examples, a beam splitter of the imaging system splits an optical beam, obtained from a viewing device, into a first split beam directed by the imaging system to a spatial camera and a second split beam directed by the imaging system to the entrance slit of an imaging spectrograph that is coupled to a spectral camera. An electronic apparatus synchronously triggers the spatial camera and the spectral camera to synchronously record a spatial image and a spectral image, respectively.

公开(公告)号：US20210231498A1

公开(公告)日：2021-07-29

申请号：US17230431

申请日：2021-04-14

Applicant: Flying Gybe Inc.

Inventor： Nicholas TUFILLARO ,  Ivan LALOVIC ,  Omar ZURITA

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/40

Abstract: A hyperspectral sensing device may include an optical collector configured to collect light and to transfer the collected light to a sensor having spectral resolution sufficient for sensing hyperspectral data. In some examples, the sensor comprises a compact spectrometer. The device further comprises a power supply, an electronics module, and an input/output hub enabling the device to transmit acquired data (e.g., to a remote server). In some examples, a plurality of hyperspectral sensing devices are deployed as a network to acquire data over a relatively large area. Methods are disclosed for performing dark-current calibration and/or radiometric calibration on data obtained by the hyperspectral sensing device, and/or another suitable device. Data obtained by the device may be represented in a functional basis space, enabling computations that utilize all of the hyperspectral data without loss of information.

公开(公告)号：US20210003449A1

公开(公告)日：2021-01-07

申请号：US16965680

申请日：2018-03-30

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Gilad Noy ,  Noam Parvin ,  Vered Maagan

IPC: G01J3/40 ,  G01N21/59

Abstract: Method and devices for calibrating optical density reflective color fluids to be deposited on substrate are disclosed. Some methods comprise depositing a quantity of a keying color fluid on a first region of the substrate; applying a voltage level to a reflective color fluid application device; depositing, in response to the voltage level applied, a quantity of reflective color fluid on the first region of the substrate and on a second region of the substrate; performing reflectance measurements of the first region and of the second region; performing optical density calculations as a function of the reflectance measurements; varying the voltage level applied to the reflective color fluid application device in response to said optical density calculation until the optical density calculation is within a calibrated range of optical densities.

公开(公告)号：US20200333187A1

公开(公告)日：2020-10-22

申请号：US16852243

申请日：2020-04-17

Applicant: WESTBORO PHOTONICS INC.

Inventor： TIMOTHY MOGGRIDGE ,  PAUL JOSEPH PRIOR

IPC: G01J3/40 ,  G01J3/28 ,  G01J3/04 ,  G01J3/02

Abstract: A variable focus imaging lens assembly has different, calibrated settings for each of multiple different wavelength ranges. Images are captured for each wavelength range using the different settings, corrected and stacked to form an image data cube. Using multiple wavelength ranges allows a scene or object to be imaged by multispectral imagers, hyperspectral imagers and imaging spectrometers using an overall wide wavelength range.

公开(公告)号：US10317655B2

公开(公告)日：2019-06-11

申请号：US15572111

申请日：2016-05-06

Applicant: Baden-Wuerttemberg Stiftung gGmbH

Inventor： Niels Kroeger-Lui

IPC: G01J3/40 ,  G02B21/00 ,  G01J3/02 ,  G01J3/42 ,  G02B21/06 ,  G02B21/36 ,  G01J3/28 ,  G01N21/35

Abstract: The invention relates to a microscope for the molecular spectroscopic analysis of a sample (2), having a beam path having at least one quantum cascade laser (QCL) (3) which emits an infrared (IR) radiation, a phase modulator (5) which is arranged between the QCL (3) and the sample (2), at least one optical element (6) which is arranged between the phase modulator (5) and the sample (2) and a sensor (4) which detects an IR radiation which is transmitted and/or reflected by the sample (2). The invention relates further to a method for the molecular spectroscopic analysis of a sample (2) comprising the steps of irradiating the sample (2) with an infrared (IR) radiation by means of a quantum cascade laser (QCL) (3), wherein the IR radiation is directed onto the sample (2) via a phase modulator (5) and at least one optical element (6), and detecting the IR radiation which is reflected and/or transmitted by the sample (2).

公开(公告)号：US09909991B2

公开(公告)日：2018-03-06

申请号：US14989341

申请日：2016-01-06

Applicant: BT IMAGING PTY LIMITED

Inventor： Thorsten Trupke ,  Robert Andrew Bardos

IPC: G01J3/40 ,  G01N21/64 ,  H01L21/66 ,  G01N21/88 ,  F21Y115/10

CPC classification number: G01N21/6489 ,  F21Y2115/10 ,  G01N21/6456 ,  G01N21/8851 ,  G01N2021/8887 ,  H01L22/14

Abstract: Methods (600) and systems (100) for inspecting an indirect bandgap semiconductor structure (140) are described. A light source (110) generates light (612) suitable for inducing photoluminescence in the indirect bandgap semiconductor structure (140). A short-pass filter unit (114) reduces long-wavelength light of the generated light above a specified emission peak. A collimator (112) collimates (616) the light. A large area of the indirect bandgap semiconductor structure (140) is substantially uniformly and simultaneously illuminated (618) with the collimated, short-pass filtered light. An image capture device (130) captures (620) images of photoluminescence simultaneously induced by the substantially uniform, simultaneous illumination incident across the large area for the indirect bandgap semiconductor structure. The photoluminescence images are image processed (622) to quantify spatially resolved specified electronic properties of the indirect bandgap semiconductor structure (140) using the spatial variation of the photoluminescence induced in the large area.

公开(公告)号：US09709488B2

公开(公告)日：2017-07-18

申请号：US14917725

申请日：2014-06-26

Applicant: NEC Corporation

Inventor： Shin Tominaga ,  Yasuhiro Sasaki ,  Masatake Takahashi ,  Junichiro Mataga

IPC: G01J3/40 ,  G01N21/41 ,  G01J3/36 ,  G02B5/32 ,  H01L31/0232 ,  H04N9/04 ,  G01J3/18 ,  G01J5/02 ,  G02B3/00 ,  G01J3/28

CPC classification number: G01N21/41 ,  G01J3/1838 ,  G01J3/36 ,  G01J5/02 ,  G01J2003/2813 ,  G01N2201/068 ,  G02B3/0056 ,  G02B3/0087 ,  G02B5/32 ,  H01L31/0232 ,  H04N9/045 ,  H04N2209/042

Abstract: A sensor unit (100) provided with a substrate (101), a plurality of light-receiving units (102) that are provided on the substrate (101) and detect light, and a diffraction grating layer (103) that is provided on the substrate (101) and the light-receiving units (102) and has at least two diffraction means for diffracting light of corresponding wavelengths and condensing the light onto the light-receiving units, wherein at least two of the diffraction means are composed from holograms formed on a first diffraction grating layer and at least a portion of the plurality of holograms formed on the first diffraction grating layer overlap at least partially with another adjacent hologram.

公开(公告)号：US09677938B2

公开(公告)日：2017-06-13

申请号：US14272705

申请日：2014-05-08

Applicant: Kohei Shimbo ,  Naohiro Kamijo ,  Yoichi Kubota

Inventor： Kohei Shimbo ,  Naohiro Kamijo ,  Yoichi Kubota

IPC: G01J3/40 ,  G03G15/00 ,  G01J3/28 ,  G01J3/04 ,  G01J3/18

CPC classification number: G01J3/2823 ,  G01J3/04 ,  G01J3/18 ,  G01J2003/045 ,  G01J2003/2826 ,  G03G15/55 ,  G03G2215/00616

Abstract: A spectral characteristic acquisition device includes a member configured to have a plurality of openings arrayed in a predetermined direction, each of the plurality of openings inclined with respect to the predetermined direction, the plurality of openings being configured to pass light beams from a plurality of positions on an object therethrough, a spectrally dispersing part configured to spectrally disperse the light beams having passed through the plurality of openings in a direction orthogonal to the predetermined direction, and a plurality of one-dimensional image capturing parts provided at a predetermined interval in a plurality of lines and configured to be irradiated with the light beams having been spectrally dispersed by the spectrally dispersing part, a plurality of pixels of the plurality of one-dimensional image capturing parts being arrayed in a direction parallel to the predetermined direction.