HyperSpectral Scanner

Patent metadata

Field	Value
Publication number	US-2021318169-A1
Application number	US-201917266669-A
Country	US
Kind code	A1
Filing date	Aug 5, 2019
Priority date	Aug 6, 2018
Publication date	Oct 14, 2021
Grant date	—

Abstract

The present invention provides a scanning system including a chamber configured for receiving reflected light from an object. The chamber includes a first prism and a second prism configured for refracting the reflected light, at least one beam splitter configured for splitting the reflected light into a first beam and a second beam, a camera configured for receiving the first beam so as to provide images of the object, a condenser lens configured for condensing the second beam, and a spectrometer configured for receiving the condensed second beam and provide a spectrum analysis of the second beam. The system further includes a particular computer configured to combine the images of the object produced by the camera with the spectrum analysis produced by the spectrometer to provide a hyperspectral image.

First claim

1 . A scanning system comprising:
a chamber configured for receiving reflected light from an object, said chamber includes:
a first prism and a second prism configured for refracting said reflected light;
at least one beam splitter configured for splitting said reflected light into a first beam and a second beam;
a camera configured for receiving said first beam so as to provide images of said object;
a condenser lens configured for condensing said second beam; and,
a spectrometer configured for receiving the condensed second beam and provide a spectrum analysis of said second beam;
a particular computer configured to combine said images of said object produced by said camera and said spectrum analysis produced by said spectrometer to provide a hyperspectral image.

2 . The system of claim 1 additionally comprising a sensor for measuring the distance from said object.

3 . The system of claim 2 wherein, said sensor is a light detection and ranging (LIDAR) sensor.

4 . The system of claim 3 wherein, said light detection and ranging (LIDAR) sensor provides a range map.

5 . The system of claim 1 wherein, said camera is an RGB camera.

6 . The system of claim 1 wherein, said spectrometer is a point spectrometer.

7 . The system of claim 1 wherein, said hyperspectral image is a hyperspectral cube.

8 . The system of claim 1 wherein, said first prism and said second prism are each connected to a rotating mechanism to allow the individual rotation of each wedge prism around its axis.

9 . The system of claim 8 wherein, said rotating mechanism is operated manually.

10 . The system of claim 8 wherein, said rotating mechanism is operated by a computerized controller.

11 . The system of claim 1 additionally comprising a filter configured for limiting illumination.

12 . The system of claim 1 additionally comprising an integral radiation meter configured for monitoring radiation from external sources.

13 . The system of claim 1 wherein, said system is mounted on one of a tripod, a post, and a tower.

14 . The system of claim 1 wherein, said system is mounted on an unmanned aerial vehicle (UAV).

15 . The system of claim 14 wherein, said system is stabilized by a gimbal set to prevent hovering errors.

16 . The system of claim 1 wherein, said camera and said spectrometer are aligned so as to allows accurate identification of the exact location of the spectrometer's measurements in the generated image.

Assignees

• The State Of Israel Ministry Of Agriculture & Rural Development Agricultural Res Organization

Inventors

• Klapp Iftach
• Arad Or

Classifications

• G01S17/89

  for mapping or imaging · CPC title

• G02B26/108 Primary

  having one or more prisms as scanning elements · CPC title

• G01J3/2823 Primary

  Imaging spectrometer · CPC title

• G01J3/0205 Primary

  Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows · CPC title

• G01J2003/2826

  Multispectral imaging, e.g. filter imaging · CPC title