公开(公告)号：US20220189047A1

公开(公告)日：2022-06-16

申请号：US17526935

申请日：2021-11-15

Applicant: Mazor Robotics Ltd.

Inventor： Amir Lev-Tov ,  Shay Shimon Peretz ,  Yaniv Ben Zriham ,  Moshe Shoham

IPC: G06T7/38 ,  G06K9/32 ,  G06T7/33 ,  G06T7/215 ,  G16H30/40 ,  G16H30/20

Abstract: A method according to one embodiment of the present disclosure comprises receiving a first image of a patient's anatomy, the first image generated at a first time and depicting a plurality of rigid elements; receiving a second image of the patient's anatomy, the second image generated at a second time after the first time and depicting the plurality of rigid elements; determining a transformation from the first image to the second image for each one of the plurality of rigid elements to yield a set of transformations; calculating a homography for each transformation in the set of transformations to yield a set of homographies; and identifying, using the set of homographies, a common portion of each transformation attributable to a change in camera pose, and an individual portion of each transformation attributable to a change in rigid element pose.

公开(公告)号：US20230240749A1

公开(公告)日：2023-08-03

申请号：US17590025

申请日：2022-02-01

Applicant: Mazor Robotics Ltd.

Inventor： Amir Lev-Tov ,  Itay Ben Shushan ,  Eliyahu Zehavi

IPC: A61B34/10 ,  A61B34/32 ,  A61B34/00 ,  A61B5/00 ,  A61B90/00

CPC classification number: A61B34/10 ,  A61B34/32 ,  A61B34/25 ,  A61B5/4509 ,  A61B5/4566 ,  A61B90/37 ,  A61B2090/3762 ,  A61B2034/105

Abstract: A method of estimating bone mineral density according to at least one embodiment of the present disclosure includes receiving one or more images of an anatomical element; generating, based on the one or more images of the anatomical element, a three-dimensional mask for the anatomical element; generating, based on the three-dimensional mask for the anatomical element, a transformed three-dimensional mask for at least a portion of the anatomical element; filtering the one or more images of the anatomical element with the transformed three-dimensional mask for the at least a portion of the anatomical element; and determining, based on the filtering, a bone mineral density for the at least a portion of the anatomical element.