公开(公告)号：US12159421B2

公开(公告)日：2024-12-03

申请号：US17940347

申请日：2022-09-08

Applicant: OLYMPUS CORPORATION

Inventor： Per Suppa ,  Lorena Krames

IPC: G06T7/33 ,  A61B1/00 ,  A61B1/313 ,  G06T7/593 ,  H04N5/77

Abstract: A method of finding a set of corresponding points in images to be registered. According to the method, an input unit of the system receives a first user input, indicative of a reference point in an intraoperative image. A processing unit sets a reference area surrounding the reference point and converts the image data points in the reference area to a intraoperative point cloud. The input unit receives a second user input, indicative of a candidate point in a preoperative image. The processing unit sets a search area surrounding the reference point and converts the image data points in the reference area to a preoperative point cloud. By comparing geometric feature descriptors of the image data points, the processing unit finds a target point in the preoperative image corresponding to the reference point and defines the points as set of corresponding points.