Method and system for retrieving text associated with a reference image correspondence to a selected patient image

• US 5,019,976 A
• Filed: 01/08/1990
• Issued: 05/28/1991
• Est. Priority Date: 06/08/1987
• Status: Expired due to Fees

• Current Assignee: New World Down Hole Tools
• Original Assignee: New World Down Hole Tools
• Inventors: Chiu, Lee C., Ko, Yuki N., Wong, Keith N.
• Primary Examiner(s): MacDonald, Allen R.
• Assistant Examiner(s): Hayes, Gail O.
• Application Number:
  US07/461,979
• Time in Patent Office: 505 Days
• Field of Search: 364/413.13, 340/721
• US Class Current: 382/203
• CPC Class Codes: G06T 5/50 using two or more images, e.g. averaging or subtraction

Abstract

A method of comparing a newly acquired working image with a previously acquired reference image and a system for comparing a newly acquired working image with a previously acquired reference image. A reference text regarding areas of interest is displayed. This invention is particularly useful for displaying and comparing slices obtained by computer tomography and magnetic resonance imaging technology.

Claims

1. A method for analyzing the data corresponding to a working image displayed on an electronic visual display device comprising:

a) first acquiring a working image from a working image file;

b) second acquiring a reference image from a reference image file;

c) third comparing the working image with the reference image;

d) fourth identifying areas of interest; and

e) fifth acquiring text from a reference text file after the working image and the reference image have been acquired, displayed, and compared and displaying the text regarding areas of interest.

2. The method of claim 1, including the step of displaying the working image after acquiring the working image data from the working image file.

3. The method of claim 1, including the step of displaying the reference image after acquiring the reference image data from the first data bank.

4. The method of claim 3, wherein said reference image is displayed on the same screen as a previously displayed working image.

5. The method of claim 1, including the step of scrolling through a series of reference images to find the closest match with the working image.

6. The method of claim 1, including the step of obtaining correspondence of the working image and the reference image.

7. The method of claim 6, including the steps of:

selecting the same feature in the working image and the reference image; and

positioning that feature in the same location within the field o( the working image and the field of the reference to obtain correspondence.

8. The method of claim 1, including the step of outlining the areas of interest in the working image.

9. The method of claim 8, including the steps of:

obtaining image correspondence between the working image and the reference image; and

outlining the corresponding areas of interest simultaneously in both the working image and the reference image.

10. The method of claim 9, including enlarging the outlined areas such that the outlined areas substantially occupy the field of said working image and said reference image.

11. The method of claim 1, including the step of indentifying a point of interest within the area of interest.

12. The method of claim 11, including the step of displaying the reference text for the point of interest.

13. A system for analyzing the data corresponding to a working image to be displayed on an electronic visual display device providing textbook information regarding particular areas of interest within the working image, comprising:

a working image file, having at least one working image;

a reference image file, having at least one reference image that corresponds to at least one working image in the working image file;

means for identifying a particular area within said reference image of said reference image file which corresponds to a particular area of interest identified within said working image of said working image file;

a means for accessing reference text after identification of the particular area of interest in said reference image, having reference text corresponding to said particular area of interest in said working image; and

means for displaying the reference text corresponding to the area of interest.

14. The system of claim 13, wherein said means for identifying areas of interest is an image merger that places the reference image onto the same screen as the working image.

15. The system of claim 13, wherein said means for displaying text includes text enabler that accesses the reference text file and a image/text corresponder, said image/text corresponder providing the corresponding text to each point in the reference image.

16. The system of claim 15, wherein said means for displaying includes an image merger that places the reference image, the reference text, and the working image onto the same screen as the working image.

17. The system of claim 13, including an image aligner that positions a feature in the working image in a particular location in the field of the working image while simultaneously positioning a corresponding feature of the reference image in the same location.

18. The system of claim 17 that includes an outliner that outlines a area of interest in the working image while simultaneously outlining the corresponding area in the reference image.

19. The system of claim 18, including means to move a cursor.

20. The system of claim 19, wherein said cursor forms a line on the screen as it is moved.

21. The system of claim 13 wherein said means for displaying text includes a text enabler that simultaneously accesses a reference text file and an image/text corresponder.

22. The system of claim 21 wherein said image/text corresponder identifies the location of the cursor and access the corresponding text from said reference text file.