MULTI-VIEW STEREO SYSTEMS AND METHODS FOR TUBE INVENTORY IN HEALTHCARE DIAGNOSTICS
摘要
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.
申请公布号
EP2686830(A1)
申请公布日期
2014.01.22
申请号
EP20120710006
申请日期
2012.02.29
申请人
SIEMENS HEALTHCARE DIAGNOSTICS INC.
发明人
LI, GANG;GENC, YAKUP;CHHATPAR, SIDDHARTH RAM;NAIK, SANDEEP M.;BARR, ROY;SACCO, DANIEL;GELBMAN, ALEXANDER