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Method for displaying an image of a portion of the inside of a three-dimensional physical structure

  • US 5,412,763 A
  • Filed: 05/24/1991
  • Issued: 05/02/1995
  • Est. Priority Date: 05/25/1990
  • Status: Expired due to Term
First Claim
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1. In a method for displaying a portion of an image of a physical structure on a display screen, including the steps ofdefining the structure by a plurality of adjacent "voxels", which are volummetric elements, each voxel being representative of(a) a position in three dimensional space;

  • and(b) a value of at least one physical magnitude representative of the structure at the position in space;

    storing memory words in an original memory for describing an image of the structure on a screen;

    relating an original address to each original memory word;

    storing original data in each of the original words;

    associating the original addresses of the original words to the position of the voxels in three dimensional space;

    associating the original data to the values of physical magnitude;

    the improvement comprising;

    scanning the original addresses of the original memory;

    selecting original memory words from the original memory which contain information that corresponds to the portion of the structure to be displayed;

    establishing positions on the display screen, calculated from corresponding selected original addresses of original memory words;

    relating at least one display magnitude to a corresponding display screen position;

    generating the image by displaying a collection display magnitudes at corresponding display screen positions;

    creating a pointer memory storing pointer information in pointer words, at corresponding pointer addresses;

    associating the address of each pointer word to a position address on the display screen;

    associating the information in each pointer word with the original address of an original memory word in the original memory.

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