Method for displaying moveable bodies

• US 5,678,546 A
• Filed: 03/15/1994
• Issued: 10/21/1997
• Est. Priority Date: 11/26/1990
• Status: Expired due to Fees

• Current Assignee: Artma Medical Technologies AG
• Original Assignee: Michael Truppe
• Inventors: Truppe, Michael
• Primary Examiner(s): Tucker, Guy V.
• Application Number:
  US08/213,188
• Time in Patent Office: 1,316 Days
• Field of Search: 128/660.04, 128/665, 128/782, 128/774, 128/898, 128/653.1, 128/660.1, 358/107, 378/4, 378/20, 378/21, 378/28, 378/29, 378/37, 378/62, 378/63, 378/98, 378/204, 378/210, 364/413.01, 364/413.02, 364/413.13, 364/413.14, 364/413.19, 364/413.21, 364/413.22, 364/413.25, 364/460, 356/1, 340/980
• US Class Current: 600/426
• CPC Class Codes: A61B 2034/2051 Electromagnetic tracking systems
• CPC Class Codes: A61B 2034/2055 Optical tracking systems
• CPC Class Codes: A61B 2034/2072 Reference field transducer attached to an instrument or patient
• CPC Class Codes: A61B 2090/395 with marking agent for marking skin or other tissue
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 5/06 Devices, other than using radiation, for detecting or locating foreign bodies for removing same A61B17/50 ; determining position of probes within or on the body of the patient
• CPC Class Codes: A61B 5/062 using magnetic field
• CPC Class Codes: A61B 5/11 Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb for measuring pulse A61B5/02 ;A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721
• CPC Class Codes: A61B 5/1114 Tracking parts of the body
• CPC Class Codes: A61B 5/1127 using markers
• CPC Class Codes: A61B 5/6814 Head
• CPC Class Codes: A61B 6/08 Auxiliary means for directing the radiation beam to a particular spot, e.g. using light beams

Abstract

The invention relates to a method for displaying moveable bodies, in which an optical representation of the body and a data field attributed to this body are displayed simultaneously or alternately from the same perspective and on the same scale in real time. The method includes the following steps:

providing the optical image-reproduction system comprising a camera and a monitor;

allocating a 3D - data field to the body having a certain position;

continuously recording of the 3D - position of the body;

continuously calculating of a display of the data field equivalent to the body'"'"'s momentary position;

simultaneously or alternately representing the optical image and the data field on the monitor.

An apparatus for carrying out this method is also provided.

Claims

1. A method for displaying a moveable body, the method comprising:

marking a plurality of registration points on the body for tracking movements of a first image;

recording a video image of the body as the first image;

recording data corresponding to spatial coordinates of a plurality of points on the body, distributed in three spatial dimensions;

presenting in real time a second image in three dimensions, the second image corresponding to a three-dimensional image of a portion of the body including the plurality of points, the second image being displayed from the same perspective as the first image and scaled to the same scale as the first image to be superimposable on the first image.

2. A method for displaying a moveable body, the method comprising the following steps:

providing an optical image-reproduction system comprising a video camera for recording a first image comprising a three-dimensional, movable, video image of the body, and a monitor for displaying the first image;

marking a plurality of registration points on the body for tracking movements of the first image;

representing a plurality of points on the body, positioned in a first position, by data corresponding to the spatial coordinates of each point of the plurality of points;

continuously recording the position of the body;

continuously calculating a display of the plurality of points corresponding to the moveable body'"'"'s momentary position;

selectively representing the first image, the first image superimposed on a second image comprising the plurality of points, and the second image on the monitor.

3. A method for displaying a body, the method comprising:

recording a first image of the body in three dimensions, the image selected from a three-dimensional video image and the body itself;

marking a plurality of registration points on the body for tracking movements of the first image;

recording data corresponding to spatial coordinates of a plurality of points on the body;

presenting on a display in real time the first image;

presenting on the display in real time a second image corresponding to the plurality of points, the second image being presented from the same perspective as the first image and scaled to the same scale as the first image, to be superimposable on the first image.

4. The method of claim 3 wherein each registration point of the plurality of registration points corresponds to a point of the plurality of points.

5. The method of claim 4 further comprising registering the first image with the second image by matching corresponding registration points in the first and second images.

6. A method for displaying a body, the method comprising the following steps:

providing an image-reproduction system comprising a video camera for recording a three-dimensional image of the body displaying simultaneously actual points on the body, the points being viewed from a perspective of the image-reproduction system and a monitor for displaying a first image corresponding to the three-dimensional image of the body;

placing on the body a plurality of marks associated with a plurality of registration points;

representing a plurality of points on the body, positioned in a first position, by data corresponding to spatial coordinates of each point of the plurality of points;

continuously recording and presenting the first image corresponding to the body while the body moves;

continuously calculating and presenting a second image corresponding to the plurality of points on the body while the body moves;

selectively representing on the monitor the first image, the second image, and a combination image superimposing the first and second images.

7. The method of claim 6 wherein each registration point of the plurality of registration points corresponds to a point of the plurality of points.

8. The method of claim 7 wherein said each mark is detectable by the camera.

9. The method of claim 8 further comprising registering the first image with the second image by positioning each mark in the first image over the corresponding registration point in the second image.

10. The method of claim 9 further comprising scaling and orienting the second image to be presented from the same perspective and scaled to the same size as the first image.

11. The method of claim 10 further comprising superimposing the second image on the first image.

12. A method for displaying a body, the method comprising:

providing an optical image-reproduction system comprising a video camera and a corresponding monitor;

placing on the body a plurality of marks associated with a plurality of registration points;

allocating a three-dimensional data field to the body in a first position;

continuously recording with the camera in three spatial dimensions a first image of the body showing the positions of points, including at least one registration point, on the body;

repeatedly calculating the positions of a plurality of points in the three-dimensional data field, corresponding no the positions of the points on the body;

presenting on the monitor, selectively, the first image and a second image corresponding to the plurality of points, and a third image corresponding to the plurality of points superimposed on the first image.