US 11,815,461 B2
Portable plant health analysis system and method
Jian Jin, West Lafayette, IN (US); and Xiaohui Song, West Lafayette, IN (US)
Assigned to Purdue Research Foundation, West Lafayette, IN (US)
Filed by Purdue Research Foundation, West Lafayette, IN (US)
Filed on Dec. 13, 2022, as Appl. No. 18/080,709.
Application 18/080,709 is a continuation of application No. 16/658,838, filed on Oct. 21, 2019, granted, now 11,536,663.
Application 16/658,838 is a continuation of application No. PCT/US2018/027953, filed on Apr. 17, 2018.
Claims priority of provisional application 62/546,699, filed on Aug. 17, 2017.
Claims priority of provisional application 62/487,015, filed on Apr. 19, 2017.
Prior Publication US 2023/0112059 A1, Apr. 13, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G01N 21/64 (2006.01); H04N 23/51 (2023.01); H04N 25/76 (2023.01); H04N 23/56 (2023.01); H04N 23/57 (2023.01); H04N 25/71 (2023.01); G01N 21/84 (2006.01)
CPC G01N 21/6486 (2013.01) [G01N 21/6456 (2013.01); G01N 21/84 (2013.01); H04N 23/51 (2023.01); H04N 23/56 (2023.01); H04N 23/57 (2023.01); H04N 25/71 (2023.01); H04N 25/76 (2023.01); G01N 2021/8466 (2013.01); G01N 2201/0221 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for analyzing a plant specimen, comprising:
emitting light by at least one light emitter positioned to emit light within a sensing volume within a housing assembly when the housing assembly is in a closed configuration, the at least one light emitter comprising a first halogen light source, a second halogen light source, a laser light source, and a light emitting diode (LED) array, wherein the housing assembly controls entry of ambient light into the sensing volume when in the housing assembly in the closed configuration;
supporting a plant specimen by a specimen support coupled with the housing assembly wherein the specimen support configured to position the plant specimen within the sensing volume whereby light emitted from the at least one light emitter is incident upon the plant specimen when the housing assembly is in the closed configuration;
sensing light by an image sensor positioned within the sensing volume, light emitted from the at least one light emitter and configured to be incident on the plant specimen; and
controlling light emitted by the at least one light emitter;
capturing image data by the image sensor;
assessing one or more properties of the plant specimen from the captured image data captured;
positioning the specimen support between the image sensor and a first halogen light source;
capturing a hyperspectral transmittance image by the image sensor from light transmitted through the plant specimen which has been emitted from the first halogen light source; and
capturing a hyperspectral reflectance image and a fluorescent image from light emitted from at least one of a second halogen light source, the laser light source and the LED array and reflected by the plant specimen, when the second halogen light source, the laser light source and the LED array are positioned between the specimen support and the image sensor.