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    HEAT ASSISTED DETECTION AND RANGING BASED ON SPECTROPOLARIMETRIC IMAGING
    122.
    发明公开
    HEAT ASSISTED DETECTION AND RANGING BASED ON SPECTROPOLARIMETRIC IMAGING 审中-公开

    公开(公告)号：US20230341265A1

    公开(公告)日：2023-10-26

    申请号：US17778842

    申请日：2020-12-06

    Applicant: Purdue Research Foundation

    Inventor： Zubin Jacob ,  Fanglin Bao ,  Xueji Wang

    IPC: G01J3/447 ,  G01J3/28 ,  G01J5/48 ,  G06V10/30 ,  G06V10/54 ,  G06V10/75

    CPC classification number: G01J3/447 ,  G01J3/2823 ,  G01J5/485 ,  G06V10/30 ,  G06V10/54 ,  G06V10/751 ,  G06V10/758 ,  G01J4/04

    Abstract: A method of generating object surface texture in thermal infrared images is disclosed which includes receiving heat radiation from a scene by a spectropolarimetric imaging system, generating a plurality of spectral frames associated with the scene, each frame having a plurality of pixels, for each pixel from the generated plurality of spectral frames, extracting spectral information associated with the scene, including pixel-specific temperature representing an objects temperature, and thermal texture factor representing the objects texture, for each of a plurality of materials having a specific emissivity in a library, generating reference spectral information as a function of temperature and thermal texture, matching the extracted spectral information for each pixel from the generated plurality of spectral frames to the generated reference spectral information using a statistical method to minimize the associated variation, and extracting spectral metadata from the matched reference spectral information for the associated material based on the match.

    CONSTRUCTION METHOD AND SYSTEM FOR VISIBLE NEAR-INFRARED SPECTRUM DICTIONARY
    124.
    发明公开
    CONSTRUCTION METHOD AND SYSTEM FOR VISIBLE NEAR-INFRARED SPECTRUM DICTIONARY 审中-公开

    公开(公告)号：US20230326083A1

    公开(公告)日：2023-10-12

    申请号：US18298258

    申请日：2023-04-10

    Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

    Inventor： Tianxu Zhang ,  Xin Zhou ,  Wandong He

    IPC: G06T7/90 ,  G01J3/28

    CPC classification number: G06T7/90 ,  G01J3/2823

    Abstract: A construction method and system for a visible near-infrared spectrum dictionary is provided. The method includes: constructing a four-primary color chromaticity cone by using normalized spectral response curves of four primary colors of a visible light camera as spectral basis functions; performing weighted combination on the spectral basis functions and forming an initial visible near-infrared spectrum dictionary; acquiring points on the four-primary color chromaticity cone on the basis of the initial visible red infrared spectrum dictionary according to different spectral resolutions and performing discretization, and forming words in the initial visible near-infrared spectrum dictionary; clustering chromaticity coordinates corresponding to the words into different groups, performing weighted combination on multi-scale spectral response curves corresponding to different group types, generating phrases or sentences in the dictionary, and generating a final visible near-infrared spectrum dictionary. The visible near-infrared spectrum dictionary can support a novel computational spectrometry imaging spectrometer.

    DEPLOYABLE MICRO-SPECTROMETER BULLETS
    125.
    发明公开
    DEPLOYABLE MICRO-SPECTROMETER BULLETS 审中-公开

    公开(公告)号：US20230324224A1

    公开(公告)日：2023-10-12

    申请号：US18299601

    申请日：2023-04-12

    Applicant: Space Age Technologies, LLC

    Inventor： Sang H. CHOI ,  Robert W. Moses

    IPC: G01J3/02 ,  G01J3/10 ,  G01J3/28 ,  F41B11/80

    CPC classification number: G01J3/0291 ,  G01J3/0229 ,  G01J3/0256 ,  G01J3/0208 ,  G01J3/0283 ,  G01J3/10 ,  G01J3/2823 ,  F41B11/80 ,  G01J3/4406

    Abstract: A tiny and portable micro-spectrometer deployable in a bullet-like form that is inexpensive to the point that it can even be disposable is described. The device is based on the micro-spectrometer that uses the Fresnel diffraction principle that allows a tiny implementation with a nanometer resolving power of spectral signal. A bullet-like micro-spectrometer has an integration of a super capacitor as a power source, a charging coil for the super capacitor, an LED or laser diode light source and driver, an analog to digital converter (ADC) circuit, and a telemetry system with antenna string. An LED or laser diode runs in a burst mode to generate deep or vacuum UV to excite target material. When the excited state of target material undergoes a singlet or triplet transition, this transition process yields fluorescence or luminescence which is a material-dependent. The micro-spectrometer senses and uses this spectral emission from material to identify the spectral signature of the targeted material. The data is converted by an ADC and transmitted to a receiving station.

    Measurement apparatus and measurement method
    126.
    发明授权
    Measurement apparatus and measurement method 有权

    公开(公告)号：US11781994B2

    公开(公告)日：2023-10-10

    申请号：US17707287

    申请日：2022-03-29

    Applicant: YOKOGAWA ELECTRIC CORPORATION

    Inventor： Syuhei Okada

    IPC: G01J3/28 ,  G01N21/88 ,  G01N21/17

    CPC classification number: G01N21/8851 ,  G01J3/28 ,  G01N21/17 ,  G01J2003/2859 ,  G01N2021/1738

    Abstract: A measurement apparatus (10) includes a generator (121) that irradiates electromagnetic waves on a measurement target (M) including a substance that undergoes a structural transition from a first substance with an unstable structure to a second substance with a stable structure due to entry of a foreign substance, a receiver (122) that receives the electromagnetic waves including information on a spectroscopic spectrum of the measurement target (M), and a controller (116) that acquires the measured spectroscopic spectrum based on the electromagnetic waves received by the receiver (122), calculates ratio information between the first substance and the second substance based on the acquired measured spectroscopic spectrum, and generates diagnostic information regarding entry of the foreign substance based on the ratio information.

    Spectroscopic measuring instrument
    129.
    发明授权
    Spectroscopic measuring instrument 有权

    公开(公告)号：US11768109B2

    公开(公告)日：2023-09-26

    申请号：US17684660

    申请日：2022-03-02

    Applicant: National University Corporation Hokkaido University

    Inventor： Yukihiro Takahashi ,  Youhei Moteki ,  Nobuyasu Naruse

    IPC: G01J3/02 ,  G01N21/25 ,  G01J3/28

    CPC classification number: G01J3/0229 ,  G01J3/2823 ,  G01N21/255

    Abstract: The spectroscopic measuring instrument includes: a spectrometer to make measurement of a reflection spectrum of an object relative to a light source and output measurement information representing a result of the measurement; a shadow projector including obstacle(s) to allow light from the light source to cast shadow(s) on an object surface; an imaging device to output image information representing an image of an imaging area including the object surface; a storage interface removably connectable to a computer readable medium; and a processing device. The processing device is connected to the spectrometer, the imaging device and the storage interface, and performs a measurement process of storing the measurement information from the spectrometer and the image information from the imaging device in the computer readable medium connected to the storage interface.

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