公开(公告)号：US20230221256A1

公开(公告)日：2023-07-13

申请号：US18118664

申请日：2023-03-07

Applicant: Purdue Research Foundation

Inventor： Jian JIN ,  Xiaohui SONG

IPC: G01N21/64 ,  G01N21/84

CPC classification number: G01N21/6486 ,  H04N23/57 ,  G01N21/6456 ,  G01N21/84 ,  H04N23/56 ,  H04N25/76 ,  H04N25/71 ,  H04N23/51 ,  G01N2021/8466 ,  G01N2201/0221

Abstract: An apparatus for analyzing a plant specimen is disclosed which includes a housing assembly adapted to be in i) an open configuration adapted to receive a plant specimen, and ii) a closed configuration wherein ambient light is controlled therein, a light source disposed in or coupled to the housing assembly, the light source adapted to shine light onto or through the plant specimen when the housing assembly is in the closed configuration, and a camera assembly coupled to the housing assembly, the camera assembly having an image sensor adapted to receive light from the plant specimen in i) a transmittance mode where light transmits through the plant specimen, or ii) a reflectance mode where light is reflected from the plant specimen, the image sensor adapted to thereby capture hyperspectral images of the plant specimen.

公开(公告)号：US20230112059A1

公开(公告)日：2023-04-13

申请号：US18080709

申请日：2022-12-13

Applicant: Purdue Research Foundation

Inventor： Jian JIN ,  Xiaohui SONG

IPC: G01N21/64 ,  H04N23/51 ,  H04N25/76 ,  H04N23/56 ,  H04N23/57 ,  H04N25/71 ,  G01N21/84

Abstract: A portable apparatus for analyzing a plant specimen. A housing assembly defines a sensing volume and controls entry of ambient light into the sensing volume when the housing is closed. A specimen support positions a plant specimen within the sensing volume whereby light emitted from at least one light emitter is incident upon the plant specimen. An image sensor senses light from the at least one light emitter that has been incident on the plant specimen. A processor analyzes data obtained from the light sensor to assess one or more properties of the plant specimen. There may be more than one light emitter, e.g., a halogen lamp and LED array, and the apparatus may acquire images under more than one lighting condition. The apparatus may include a mechanism for moving the plant specimen relative to the optical path to take images at multiple regions of interest on the specimen.