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    Method and system for grading gemstones
    12.
    发明专利
    Method and system for grading gemstones 未知

    公开(公告)号：IL266809D0

    公开(公告)日：2019-09-01

    申请号：IL26680919

    申请日：2019-05-22

    Applicant: ILYA LEIZERSON ,  DITECH DIAMOND INSPECTION TECH LTD

    Inventor： ILYA LEIZERSON

    IPC: G01J20060101

    Abstract: Gemstone grading method including illuminating the gemstone by light having a plurality of spectral components, each modulated according to a spectrally specific modulation (e.g., of intensity, frequency, phase), collecting the light following interaction with the gemstone, extracting from the collected light a set of intensity values for a respective set of modulation parameter values to provide a transmittance spectrum, and an output indicative of the transmittance spectrum (e.g., color, clarity, fluorescence grade). A complementary system includes a plurality of monochromatic light sources and respective modulators for simultaneously illuminating a gemstone with a modulation spectrally specific for each light source, a detection system for collecting the light following interaction whose signals are fed via a communication system to a data processor configured to extract a set of intensity values for a respective set of modulation parameter values to provide a transmittance spectrum and an output indicative thereof.

    System for object authenticity detection including a reference image acquisition module and a user module and methods therefor
    13.
    发明专利
    System for object authenticity detection including a reference image acquisition module and a user module and methods therefor 未知

    公开(公告)号：IL245932A

    公开(公告)日：2017-10-31

    申请号：IL24593216

    申请日：2016-05-30

    Applicant: ELBIT SYSTEMS LAND & C4I LTD ,  ILYA LEIZERSON

    Inventor： ILYA LEIZERSON

    IPC: G06K20060101 ,  G02B20060101

    Abstract: A system for determining the authenticity of an object including a reference-image acquisition module for acquiring a reference-image. The reference-image acquisition module includes a light-source, an imager including an imaging-sensor, and a database coupled with the imager for storing the reference-image. The light-source directs circumferential-light toward an authentication-region on the object. The circumferential-light is at least one of collimated and telecentric. The circumferential-light impinges on the authentication-region from a plurality of different azimuthal directions and at a predetermined oblique angle relative to the normal of a plane defined by said object. A portion of the circumferential-light is reflected from the authentication-region toward a specular reflection region and another portion is scattered from the authentication-region. The imager is focused on the authentication-region and acquires a reference-image. The reference-image is a focused image of the scattered light. The reference-image includes image features related to surface features scattering phenomena of the authentication-region.

    Contactless parameters measurement system and method
    16.
    发明专利
    Contactless parameters measurement system and method 未知

    公开(公告)号：IL275524A

    公开(公告)日：2021-12-01

    申请号：IL27552420

    申请日：2020-06-18

    Applicant: ELBIT SYSTEMS C4I AND CYBER LTD ,  ILYA LEIZERSON ,  REUVEN DAHAN ,  YARON MAYEROWICZ ,  AVIV ELISHA

    Inventor： ILYA LEIZERSON ,  REUVEN DAHAN ,  YARON MAYEROWICZ ,  AVIV ELISHA

    Abstract: A system for measuring temperature of one or more subjects within a scene including a reference object having an unknown emissivity, having an ambient temperature, the system comprising: a visible spectrum camera capable of acquiring images of the scene comprising (a) at least a Region of Interest (Rol) of each of the subjects, and (b) the reference object; a thermal image sensor capable of acquiring images of the scene comprising (a) at least the Rol of each of the subjects, and (b) the reference object; and a processing circuitry configured to: obtain (a) a visible spectrum image captured by the visible spectrum camera, and (b) a thermal image captured by the thermal image sensor, and (c) an indication of a scene ambient temperature within the scene; register the visible spectrum image and the thermal image onto a common coordinate system; identify (a) Rol pixels, on the common coordinate system, of the Rols of the subjects within the visible spectrum image, (b) reference object pixels, on the common coordinate system, of the reference object within the visible spectrum image and (c) a parameter correlated to an emissivity of the reference object, based on the reference temperature and on the indication of the scene ambient temperature; determine (a) Rol temperatures by analyzing respective Rols pixels on the thermal image, and (b) a reference temperature by analyzing the reference object pixels on the thermal image; and upon existence of a difference between the reference temperature and the scene ambient temperature, correct the Rol temperatures, based on the difference and utilizing the parameter, to compensate for the difference, giving rise to corrected Rol temperatures.

    System and method for object authenticity detection
    18.
    发明专利
    System and method for object authenticity detection 未知

    公开(公告)号：IL240872A

    公开(公告)日：2016-11-30

    申请号：IL24087215

    申请日：2015-08-27

    Applicant: ELBIT SYSTEMS LAND & C4I LTD ,  ILYA LEIZERSON ,  ADI SUSSHOLZ

    Inventor： ILYA LEIZERSON ,  ADI SUSSHOLZ

    IPC: G06V30/144

    Abstract: System for determining authenticity of an object in which a light-source directs collimated or telecentric light toward an authentication-region on the object, which impinges on the authentication-region at a predetermined angle relative to the normal of a plane defined by the object, a portion of the light is reflected from the authentication-region and another portion of the light is scattered from the authentication-region, an imager, focused on the authentication-region, acquires a focused-image of the scattered-light, the image includes image-features related to surface-features-scattering-phenomena of the authentication region, the processor determines correspondence between part of the acquired image and a corresponding part of a stored-image corresponding to the authentication-region, the processor identifies the object as authentic when the acquired-image corresponds to the stored image, the processor identifies the object as non-authentic when the acquired-image does not corresponds the stored-image.

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