公开(公告)号：US11067449B2

公开(公告)日：2021-07-20

申请号：US17013545

申请日：2020-09-05

Applicant: The Johns Hopkins University

Inventor： Jorge I. Nunez Sanchez ,  Rachel L. Klima ,  Scott L. Murchie ,  Seppo J. Lehtonen ,  John D. Boldt ,  Jacob M. Greenberg ,  Bryan J. Maas ,  Kyle L. Anderson ,  Trevor W. Palmer ,  Heidi E. Warriner

IPC: G01J3/02 ,  G01J3/28 ,  G01J3/36

Abstract: A multispectral imager includes processing circuitry, an illumination assembly, a detector assembly, and a focusing assembly. The illumination assembly includes an array of illumination elements controlled by the processing circuitry to illuminate a scene. The detector assembly includes a detector array controlled by the processing circuitry to capture images from the scene at different wavelengths. The focusing assembly includes a lens and is controlled by the processing circuitry to adjust a focal point for the detector array. The processing circuitry generates and processes the images from the scene, taken at different wavelengths and focal points, combines the images to form a multispectral image cube for the scene, and determines a composition of an object within the scene based on a spectral profile of the multispectral image cube.

公开(公告)号：US20210096027A1

公开(公告)日：2021-04-01

申请号：US17013545

申请日：2020-09-05

Applicant: The Johns Hopkins University

Inventor： Jorge I. Nunez Sanchez ,  Rachel L. Klima ,  Scott L. Murchie ,  Seppo J. Lehtonen ,  John D. Boldt ,  Jacob M. Greenberg ,  Bryan J. Maas ,  Kyle L. Anderson ,  Trevor W. Palmer ,  Heidi E. Warriner

IPC: G01J3/28 ,  G01J3/36 ,  G01J3/02

Abstract: A multispectral imager includes processing circuitry, an illumination assembly, a detector assembly, and a focusing assembly. The illumination assembly includes an array of illumination elements controlled by the processing circuitry to illuminate a scene. The detector assembly includes a detector array controlled by the processing circuitry to capture images from the scene at different wavelengths. The focusing assembly includes a lens and is controlled by the processing circuitry to adjust a focal point for the detector array. The processing circuitry generates and processes the images from the scene, taken at different wavelengths and focal points, combines the images to form a multispectral image cube for the scene, and determines a composition of an object within the scene based on a spectral profile of the multispectral image cube.