公开(公告)号：US11216975B2

公开(公告)日：2022-01-04

申请号：US16328529

申请日：2018-06-20

Applicant: Brainlab AG

Inventor： Daniel Rohde

IPC: G06T7/80 ,  G06T7/73 ,  G06T7/521 ,  G06T7/12 ,  H04N5/247 ,  H04N17/00 ,  G01S7/497 ,  G01S17/894 ,  G01S17/86 ,  G01J5/10 ,  G01J5/00

Abstract: A hybrid phantom having marker patches that are visible both in a thermal image captured by a thermal camera and a 3D point cloud generated by a 3D camera. A thermal insulation between the marker, patches and a carrier part of the phantom maintains a temperature difference between the marker patches and the carrier part such that the marker patches are visible in the thermal image. Different optical properties of the marker patches and the carrier part make them distinguishable in the 3D point cloud.

公开(公告)号：US10796446B2

公开(公告)日：2020-10-06

申请号：US16094002

申请日：2017-09-06

Applicant: Brainlab AG

Inventor： Daniel Rohde

IPC: G06T7/73

Abstract: A hybrid phantom including a planar surface that includes a background surface having one of a first property and a second property, and a plurality of marker surfaces. Each marker surface of the plurality of marker surfaces having the other one of the first property and the second property. The first property involves having a high thermal emissivity of 0.8 or higher and the second property involves having a low thermal emissivity of 0.2 or less. One of the first property and the second property further involves being diffuse reflective and the other one of the first property and the second property further involves being specular reflective. A method using a system comprising the hybrid phantom, a first, thermal camera, a second, three-dimensional (3D) camera, and a computer.