Title:
【発明の名称】複数センサーによって追跡されるハイブリッド3Dプローブ
Document Type and Number:
Japanese Patent JP2002533721
Kind Code:
A
Abstract:
This invention is a system that tracks the 3-dimensional position and orientation of one or more bodies (20) in a volume by a light based as well as at least one non-light based mensuration sub-system. This overcomes the limitation of light based mensuration systems to the necessity of the bodies (20) to be in constant line-of-sight of its light based position sensors (26). The invention possesses most of the accuracy and stability of its light based position measurement sub-system (24, 26, 72), but can also work without direct line of sight either for short periods of time or within certain parts of the volume. It does so by incorporating other sensors (31, 34), such as inertial or magnetic, which are frequently recalibrated against the light based sub-system (24, 26, 72) while the bodies (20) are visible by the light based sub-system (24, 26, 72).
Inventors:
Schulz, Waldine, A.
Foul, Ivan
Foul, Ivan
Application Number:
JP2000591424A
Publication Date:
October 08, 2002
Filing Date:
December 22, 1999
Export Citation:
Assignee:
Image Guided Technologies Incorporated
International Classes:
G01B7/00; G01B11/00; G01B11/03; G01C21/16; G01S5/16; A61B19/00; G01S5/02; (IPC1-7): G01B7/00; G01B11/00
Domestic Patent References:
| JPH07294450A | 1995-11-10 | |||
| JPH04127013A | 1992-04-28 | |||
| JPH04113207A | 1992-04-14 | |||
| JPH05127809A | 1993-05-25 | |||
| JPH08509144A | 1996-10-01 | |||
| JPH09257461A | 1997-10-03 | |||
| JPH10149445A | 1998-06-02 | |||
| JPH10506331A | 1998-06-23 | |||
| JPH03264821A | 1991-11-26 | |||
| JPH0384426A | 1991-04-10 | |||
| JPH10307036A | 1998-11-17 | |||
| JPH10153444A | 1998-06-09 | |||
| JPH0337513A | 1991-02-18 | |||
| JPH02249975A | 1990-10-05 |
Foreign References:
| US5831260A | 1998-11-03 |
Attorney, Agent or Firm:
Atsushi Nakajima (2 outside)