Image processing method, and spectral camera system

    公开(公告)号:US12039761B2

    公开(公告)日:2024-07-16

    申请号:US18050720

    申请日:2022-10-28

    Abstract: An image processing method of converting spectral image data of a plurality of spectral wavelengths imaged by a spectral camera into a color image by using a processor, wherein the processor acquires a plurality of pieces of the spectral image data from a storage unit, calculates a correction value by multiplying a optical spectrum of each pixel of a corresponding one of the plurality of spectral image data by a correction constant set for each wavelength, calculates a color conversion value by summing the correction values of the same pixel positions, and generates a color composite image based on the color conversion value. Then, the correction constant is set such that a sum spectrum obtained by summing characteristic spectra obtained by multiplying a sensitivity characteristic with respect to each spectral wavelength of the spectral camera by the correction constant corresponding to each wavelength matches a target spectrum of any color filter.

    Imaging apparatus and spectral density reconstruction method

    公开(公告)号:US11740125B2

    公开(公告)日:2023-08-29

    申请号:US16861221

    申请日:2020-04-29

    CPC classification number: G01J3/2823 G06T11/003 G01J2003/283

    Abstract: The present disclosure generally pertains to an imaging apparatus for computed tomography imaging spectroscopy, which has circuitry configured to:



    obtain object image data being representative of light stemming from an object and being subject to an optical path and to a multiplexing process caused by a diffraction grating; and
    perform a spectral density reconstruction from an image of the object by inputting the obtained object image data into an spectral density reconstruction algorithm being configured to numerically solve a first equation describing the transformation of the light stemming from the object caused by the optical path into the object image based on a reduction of a dimensionality of a first function indicative of the optical path based on a symmetry of the first function, thereby reconstructing the spectral density of the object.

    OPTICAL COMPUTING DEVICES AND METHODS UTILIZING MULTIPLE INTEGRATED COMPUTATIONAL ELEMENTS IN SEQUENCE

    公开(公告)号:US20170241839A1

    公开(公告)日:2017-08-24

    申请号:US15504646

    申请日:2015-09-16

    Inventor: David L. PERKINS

    Abstract: Detection sensitivity of optical computing devices may be improved by utilizing multiple integrated computational elements in combination with one another. Optical computing devices containing multiple integrated computational elements may comprise: two or more integrated computational elements that are identical to one another and optically interact sequentially with incident electromagnetic radiation, such that at least a portion of the photons from the incident electromagnetic radiation optically interacts with each integrated computational element; wherein the sequential optical interaction of the incident electromagnetic radiation with the two or more integrated computational elements increases a detection sensitivity of the optical computing device relative to that obtained when only one of the integrated computational elements is present; and a detector that receives the photons that have optically interacted with each integrated computational element.

    UV/Vis HPLC photometer
    8.
    发明授权
    UV/Vis HPLC photometer 有权
    UV / Vis HPLC光度计

    公开(公告)号:US09541532B2

    公开(公告)日:2017-01-10

    申请号:US14466088

    申请日:2014-08-22

    Inventor: Günes Barka

    Abstract: An ultraviolet-visible spectrophotometry (UV/Vis) high-performance liquid chromatography (HPLC) photometer includes a nano flow cell in which a light source feeds a reference light channel and a sample light channel, a reference photodiode for evaluating the reference light channel, and a sample photodiode for evaluating the sample light channel, which extends through the nano flow cell. To create a photometer whose signal evaluation is improved, respective effective exposure times of the sample photodiode and the reference photodiode are settable separately from one another.

    Abstract translation: 紫外可见分光光度法(UV / Vis)高效液相色谱(HPLC)光度计包括其中光源馈送参考光通道和样品光通道的纳米流动池,用于评估参考光通道的参考光电二极管, 以及用于评估延伸穿过纳米流动池的样品光通道的样品光电二极管。 为了创建其信号评估提高的光度计,样品光电二极管和参考光电二极管的相应有效曝光时间可以彼此分开地设置。

    SPECTRAL MEASUREMENT METHOD
    9.
    发明申请
    SPECTRAL MEASUREMENT METHOD 审中-公开
    光谱测量方法

    公开(公告)号:US20160341657A1

    公开(公告)日:2016-11-24

    申请号:US15227086

    申请日:2016-08-03

    Abstract: A spectral measurement method of the present invention includes: a measuring step of measuring optical spectra of some sections specified among a plurality of sections on a specimen; a scalar-value calculating step of calculating, for individual measured sections, scalar values that represent information contained in the obtained optical spectra; an interpolating step of interpolating scalar values of unmeasured sections by using the calculated scalar values and by using two types of interpolation methods; an identifying step of identifying sections in which absolute values of differences between the two scalar values interpolated by using the two types of interpolation methods are equal to or greater than a predetermined threshold; and a repeating step of re-executing steps from the measuring step to the identifying step after specifying the identified sections.

    Abstract translation: 本发明的光谱测量方法包括:测量步骤,测量在样本上的多个部分之间指定的一些部分的光谱; 标量值计算步骤,对于各个测量部分,计算表示所获得的光谱中包含的信息的标量值; 通过使用所计算的标量值和通过使用两种类型的插值方法来内插未测量部分的标量值的内插步骤; 识别步骤,用于识别通过使用两种类型的插值方法内插的两个标量值之间的差的绝对值等于或大于预定阈值的部分; 以及在指定所识别的部分之后重新执行从测量步骤到识别步骤的步骤的重复步骤。

    Evanescent wave microspectrometer
    10.
    发明授权
    Evanescent wave microspectrometer 有权
    衰减波显微光谱仪

    公开(公告)号:US09459149B2

    公开(公告)日:2016-10-04

    申请号:US15023914

    申请日:2014-09-26

    CPC classification number: G01J3/45 G01J3/0205 G01J3/453 G01J2003/283

    Abstract: An evanescent wave microspectrometer includes a planar diopter separating two transparent media, an optical sensor with a pixel array, and disposed in the second transparent medium, and an interference device disposed such that at least a part of the interference device is in contact with evanescent waves generated at the surface of the diopter. The micro-spectrometer also includes a memory storing a map having a set of set of data grids including the optical response of said sensor for a set of quasi-monochromatic wavelengths of a calibration light source, and a calculator configured to determine the spectrum (ψ) of a test light source configured to generate evanescent waves at the surface of the diopter, on the basis of the map and the optical response of the sensor.

    Abstract translation: 消逝波显微光谱仪包括分离两个透明介质的平面屈光度,具有像素阵列的光学传感器,并且设置在第二透明介质中,以及干涉装置,其设置成使得干扰装置的至少一部分与ev逝波接触 在屈光度表面产生。 微型光谱仪还包括存储器,存储具有一组数据网格的地图,所述一组数据网格包括用于校准光源的一组准单色波长的所述传感器的光学响应,以及被配置为确定光谱(ψ ),其被配置为基于所述地图和所述传感器的光学响应在所述屈光度的所述表面处产生ev逝波。

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