System and method for displaying a structural data image in real-time correlation with moveable body

• US 5,823,958 A
• Filed: 06/15/1994
• Issued: 10/20/1998
• 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:
  US08/259,986
• Time in Patent Office: 1,588 Days
• Field of Search: 128/653.1, 128/660.1, 128/782, 128/774, 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 2034/2055 Optical tracking systems
• CPC Class Codes: A61B 2034/2063 Acoustic tracking systems, e.g. using ultrasound
• CPC Class Codes: A61B 2034/2068 using pointers, e.g. pointers having reference marks for determining coordinates of body points
• CPC Class Codes: A61B 2090/365 augmented reality, i.e. correlating a live optical image with another image
• 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 5/11 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 90/36 Image-producing devices or illumination devices not otherwise provided for

Abstract

A system and method including a transparent display positioned between an object and an observer on which displays a superimposed data image transformed from structural data by calculating the parameters of a three dimensional matrix with information collected from position sensors. The mathematical parameters of the three dimensional matrix are defined in order to transform the structural image data into the perspective display data. Once the parameters of the three dimensional matrix are established, any points of the structural image can be shown on the display as a virtual image corresponding to the points on the object in real time.

Claims

1. A method for displaying a moveable body in real time in three spatial dimensions, the method comprising the steps of:

continuously tracking the position of said body, an observer, and a display unit relative to each other;

continuously calculating a three-dimensional perspective projection of an image data representation of said body using data from the position tracking step; and

displaying said projection of said image data representation on a display device to correlate the data representation to a perception of the body by the observer, said correlation comprising;

matching the position, perspective, and scale of the data representation to those of a three-dimensional structural image of the body by detecting the body and presenting the structural image to the perception of the observer; and

displaying the data representation on a transparent display device positioned between the structural image of the body and the observer.

2. The method of claim 1 further comprising providing a sensor for detecting relative motion between the body and an imaging device presenting an image to the observer for correlating the model to an image of the body perceived by the observer.

3. The method of claim 2 wherein the sensor is selected to detect motion in six degrees of freedom.