US 12,253,533 B2
Methods and apparatus providing calibration of background illumination for sample and/or sample container characterization
Yao-Jen Chang, Princeton, NJ (US); Patrick Wissmann, Munich (DE); Ludwig Listl, Munich (DE); Benjamin S. Pollack, Jersey City, NJ (US); Ramkrishna Jangale, Pune (IN); Rayal Raj Prasad Nalam Venkat, Princeton, NJ (US); Venkatesh NarasimhaMurthy, Hillsborough, NJ (US); and Ankur Kapoor, Plainsboro, NJ (US)
Assigned to Siemens Healthcare Diagnostics Inc., Tarrytown, NY (US)
Appl. No. 17/755,461
Filed by Siemens Healthcare Diagnostics Inc., Tarrytown, NY (US)
PCT Filed Oct. 22, 2020, PCT No. PCT/US2020/056914
§ 371(c)(1), (2) Date Apr. 29, 2022,
PCT Pub. No. WO2021/086718, PCT Pub. Date May 6, 2021.
Claims priority of provisional application 62/929,058, filed on Oct. 31, 2019.
Prior Publication US 2024/0159786 A1, May 16, 2024
Int. Cl. G01N 35/00 (2006.01); G01N 35/04 (2006.01); G06V 10/141 (2022.01); G06V 10/56 (2022.01)
CPC G01N 35/00693 (2013.01) [G01N 35/00663 (2013.01); G01N 2035/0406 (2013.01); G06V 10/141 (2022.01); G06V 10/56 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A calibration method, comprising:
identifying an imaging area on each of a plurality of light panels with respect to each of a respective plurality of imaging devices included in an imaging apparatus;
determining a center position of the imaging area of each light panel for each imaging device;
determining an optimal optical center of the imaging apparatus using the center position of each light panel for each imaging device;
installing a tube calibration tool in a carrier on a track;
moving the carrier on the track so that a center of the tube calibration tool is located at a closest location to the optimal optical center of the imaging apparatus; and
using the center of the tube calibration tool to determine a center of a region of interest for backlight calibration.