公开(公告)号：US20240027269A1

公开(公告)日：2024-01-25

申请号：US17989527

申请日：2022-11-17

Applicant: TSINGHUA UNIVERSITY ,  BEIJING SEETRUM TECHNOLOGY CO., LTD.

Inventor： Kaiyu CUI ,  Jiawei YANG ,  Yidong HUANG ,  Wei ZHANG ,  Xue FENG ,  Fang LIU

IPC: G01J3/28 ,  G06T1/20 ,  G06T5/00 ,  G06T7/70

CPC classification number: G01J3/2823 ,  G06T1/20 ,  G06T5/002 ,  G06T7/70 ,  G01J2003/284 ,  G01J2003/2836 ,  G06T2200/04 ,  G01J2003/2826 ,  G06T2207/20084

Abstract: A reconstruction method for spectral image includes: obtaining a measurement image of an imaging object, and reconstructing and obtaining a spectral image of the imaging object according to the measurement image and a pre-calibrated sensing matrix. The spectral image includes spectral information at different position points of the imaging object. Through the method, defects of the time-consuming spectral image reconstruction method and the low resolution of the obtained spectral image in the related art can be overcame and the spectral image of the target imaging object can be obtained by reconstructing quickly and the obtained spectral image has high spatial resolution and no mosaic.

公开(公告)号：US11879781B2

公开(公告)日：2024-01-23

申请号：US17425643

申请日：2019-11-19

Applicant: SHENZHEN HYPERNANO OPTICS TECHNOLOGY CO., LTD.

Inventor： Bin Guo

IPC: G01J3/45 ,  G01J3/28

CPC classification number: G01J3/45 ,  G01J3/2823 ,  G01J2003/2879

Abstract: A filter is irradiated with incident light, and calibrated light with a fixed wavelength is obtained after the incident light is transmitted through a calibration filter film on the filter; the calibrated light is selected and transmitted via the Fabry-Perot cavity, and selected light is obtained after the calibrated light is transmitted through the Fabry-Perot cavity; an image chip is irradiated with the selected light for imaging, and an output signal is obtained. When the selected wavelength of the tuneable Fabry-Perot cavity matches the wavelength of the calibrated light transmitted by the calibration filter film at a certain position, light at the position is selected and reaches the imaging chip, and the output signal of the imaging chip at the corresponding position can be used as a detection signal for self-calibration, which does not affect normal imaging at other positions on the filter besides the calibration filter film.

公开(公告)号：US20240019306A1

公开(公告)日：2024-01-18

申请号：US18091916

申请日：2022-12-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Heejin CHOI

IPC: G01J3/28 ,  G01J3/02

CPC classification number: G01J3/2823 ,  G01J3/0208 ,  G01J2003/2826

Abstract: A spectral image sensor includes: a first lens system; an infrared blocking filter; a second lens system configured to adjust a chief ray angle (CRA) of oblique incident light to reduce an incident angle of the oblique incident light with respect to a spectral filter; the spectral filter; and an image sensor. The image sensor may be configured to detect light passing through the first lens system, the infrared blocking filter, the second lens system, and the spectral filter.

公开(公告)号：US20240011832A1

公开(公告)日：2024-01-11

申请号：US18347908

申请日：2023-07-06

Applicant: Shphotonics Ltd

Inventor： Lei SUN ,  Bing QIU

IPC: G01J3/28 ,  G01J3/02 ,  G02B1/00 ,  G02B3/00

CPC classification number: G01J3/2823 ,  G01J3/0208 ,  G01J3/021 ,  G02B1/002 ,  G02B3/0043 ,  G02B2207/101

Abstract: A metasurface spatial spectrometer includes a beam splitter, a first reflector, a second reflector, and a reception sensor. A reflective surface of the first reflector or the second reflector includes a plurality of sub-wavelength structures with different functions and arranged according to preset positions. The beam splitter is configured to: transmit a first portion of incident light and reflect a second portion of the incident light, transmit a portion of light reflected by the first reflector, and reflect a portion of light reflected by the second reflector. The first reflector is arranged at an angle of 45°, −45°, 135°, or −135° with respect to the beam splitter, and is configured to reflect the second portion of the incident light. The second reflector is arranged perpendicular to the first reflector, and is configured to reflect the first portion of the incident light.

公开(公告)号：US11869176B2

公开(公告)日：2024-01-09

申请号：US17427890

申请日：2020-01-31

Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Wen Shi ,  Eun Sang Koo ,  Scott E. Fraser ,  Francesco Cutrale

IPC: G06T5/10 ,  G01J3/28 ,  G06T5/00 ,  A61B5/00

CPC classification number: G06T5/10 ,  G01J3/2823 ,  G06T5/002 ,  A61B5/0075 ,  A61B5/441 ,  G06T2207/10024 ,  G06T2207/20056

Abstract: This invention relates to a hyperspectral imaging system for denoising and/or color unmixing multiple overlapping spectra in a low signal-to-noise regime with a fast analysis time. This system may carry out Hyper-Spectral Phasors (HySP) calculations to effectively analyze hyper-spectral time-lapse data. For example, this system may carry out Hyper-Spectral Phasors (HySP) calculations to effectively analyze five-dimensional (5D) hyper-spectral time-lapse data. Advantages of this imaging system may include: (a) fast computational speed, (b) the ease of phasor analysis, and (c) a denoising algorithm to obtain the minimally-acceptable signal-to-noise ratio (SNR). An unmixed color image of a target may be generated. These images may be used in diagnosis of a health condition, which may enhance a patient's clinical outcome and evolution of the patient's health.

公开(公告)号：US20240003742A1

公开(公告)日：2024-01-04

申请号：US17855133

申请日：2022-06-30

Applicant: DATACOLOR INC.

Inventor： Zhiling Xu ,  William Bishop

IPC: G01J3/28 ,  G01J3/02

CPC classification number: G01J3/28 ,  G01J3/0297

Abstract: In the disclosure provided herein, the described apparatus, systems and methods are directed to compensation of errors caused by the difference between the specular port and the sphere in a sphere-based color-measurement instrument, and improvement of the performance of the instrument. In one or more implementations, described approaches eliminate the need for hardware replacement, and therefore reduce costs associated with the operation of color measurement instruments.

公开(公告)号：US20230417917A1

公开(公告)日：2023-12-28

申请号：US18461442

申请日：2023-09-05

Applicant: Cilag GmbH International

Inventor： Joshua D. Talbert ,  Donald M. Wichern

IPC: G01S17/89 ,  G01N21/64 ,  G06T7/521 ,  A61B1/00 ,  A61B1/04 ,  A61B1/05 ,  G01J3/28 ,  G06T1/00 ,  G01S7/48 ,  G01S7/483 ,  G01J3/44 ,  A61B5/00 ,  A61B1/06 ,  H04N23/56 ,  H04N23/74 ,  H04N23/60

CPC classification number: G01S17/89 ,  G01N21/6456 ,  G06T7/521 ,  A61B1/00006 ,  A61B1/043 ,  A61B1/05 ,  G01J3/2823 ,  G06T1/0007 ,  G01S7/4804 ,  G01S7/483 ,  G01J3/4406 ,  A61B5/0071 ,  A61B5/0033 ,  A61B1/000095 ,  A61B1/00194 ,  A61B1/0655 ,  H04N23/56 ,  H04N23/74 ,  H04N23/665 ,  G01N2201/124 ,  G06T2207/30004 ,  G01J2003/1213

Abstract: Pulsed hyperspectral, fluorescence, and laser mapping imaging in a light deficient environment is disclosed. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes a controller configured to synchronize timing of the emitter and the image sensor. The system is such that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises one or more of a hyperspectral emission, a fluorescence emission, or a laser mapping pattern.

公开(公告)号：US20230408806A1

公开(公告)日：2023-12-21

申请号：US18306651

申请日：2023-04-25

Applicant: Cilag GmbH International

Inventor： Joshua D. Talbert ,  Donald M. Wichern

IPC: G02B23/24 ,  A61B1/04 ,  A61B1/06 ,  A61B1/00 ,  A61B1/045 ,  G01J3/28 ,  G06T1/00 ,  A61B5/00 ,  G06T7/00 ,  H04N23/10 ,  H04N23/72 ,  H04N23/74 ,  H04N25/11

CPC classification number: G02B23/2461 ,  A61B1/043 ,  A61B1/0653 ,  A61B1/0638 ,  A61B1/00006 ,  A61B1/045 ,  A61B1/00186 ,  A61B1/0661 ,  G01J3/2823 ,  G06T1/0007 ,  A61B5/0071 ,  G06T7/0012 ,  A61B1/000095 ,  H04N23/10 ,  H04N23/72 ,  H04N23/74 ,  H04N25/11 ,  A61B5/0075 ,  A61B5/0261

Abstract: Driving an emitter to emit pulses of electromagnetic radiation according to a jitter specification in a hyperspectral, fluorescence, and laser mapping imaging system is described. A system includes an emitter for emitting pulses of electromagnetic radiation and an image sensor comprising a pixel array for sensing reflected electromagnetic radiation. The system includes a driver for driving emissions by the emitter according to a jitter specification. The system is h that at least a portion of the pulses of electromagnetic radiation emitted by the emitter comprises one or more of a hyperspectral emission, a fluorescence emission, and/or a laser mapping pattern.

公开(公告)号：US11846392B1

公开(公告)日：2023-12-19

申请号：US17702677

申请日：2022-03-23

Applicant: Wavefront Research, Inc.

Inventor： Thomas A. Mitchell ,  Jonas D. Corl

IPC: F17C3/00 ,  F17C3/08 ,  G01J3/18 ,  G01J3/28 ,  G01J3/02

CPC classification number: F17C3/085 ,  G01J3/0291 ,  G01J3/18 ,  G01J3/2823 ,  F17C2250/038 ,  F17C2250/0478 ,  F17C2250/0491 ,  F17C2250/07

Abstract: A system including an optical system having at least one refractive or reflective element, the optical system configured to substantially receive electromagnetic radiation emanating from a source, the optical system being located within a Dewar, a support structure, support structure being mechanically disposed between the optical system and a surface of the Dewar, the support structure having substantially low thermal conductance, a cold source; the cold source being located within the Dewar, a thermal link, the thermal link being mechanically disposed between the optical system and the cold source, the thermal link being substantially flexible and having substantially high thermal conductance.

公开(公告)号：US11841318B2

公开(公告)日：2023-12-12

申请号：US17707616

申请日：2022-03-29

Applicant: CANON KABUSHIKI KAISHA

Inventor： Makoto Kawaguchi ,  Yuki Yonetani ,  Shigeru Ichihara

IPC: G01N21/31 ,  G01J3/02 ,  G01J3/28

CPC classification number: G01N21/314 ,  G01J3/0208 ,  G01J3/0275 ,  G01J3/2823

Abstract: Provided is an identification apparatus wherein each spectral light beam corresponding to a predetermined wavenumber shift is projected to the imaging portion) so that a distance between a projection position of the spectral light beam corresponding to the predetermined wavenumber shift on the imaging portion and a changed projection position as a result of the different excitation wavelength is shorter than a distance at the imaging lens between an optical path of the spectral light beam corresponding to the predetermined wavenumber shift and a changed optical path as a result of the different excitation wavelength.