The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 14, 2016
Filed:
Feb. 29, 2012
Gang LI, Princeton, NJ (US);
Yakup Genc, Dayton, NJ (US);
Siddharth Ram Chhatpar, Brookline, MA (US);
Sandeep M. Naik, Mead, NJ (US);
Roy Barr, Delaware, NJ (US);
Daniel Sacco, Hackettstown, NJ (US);
Alexander Gelbman, Florham Park, NJ (US);
Gang Li, Princeton, NJ (US);
Yakup Genc, Dayton, NJ (US);
Siddharth Ram Chhatpar, Brookline, MA (US);
Sandeep M. Naik, Mead, NJ (US);
Roy Barr, Delaware, NJ (US);
Daniel Sacco, Hackettstown, NJ (US);
Alexander Gelbman, Florham Park, NJ (US);
Siemens Heathcare Diagnostics Inc., Tarrytown, NY (US);
Abstract
A multi-view stereo approach generates an inventory of objects located on an object holder. An object may be a sample tube and an object holder may be a tube rack as used in lab automation for healthcare diagnostics. A processor performs 3D tracking of the object holder and the geometric analysis of multiple images generated by a calibrated camera. A homography mapping between images is utilized to warp a second image to a viewpoint of a first image. Plane induced parallax causes a normalized cross-correlation score between the first image and the warped second image of a location on the holder that has an object that is significantly different from a normalized cross-correlation score of a location that has not an object and enables the processor to infer tube inventory and absence or presence of a tube at a location in a rack.