Patent ID: 6868172
Filing Date: 2005-03-15
Classification: G06T

Abstract:
1. A method for placing and confirming reference points associated with image registration for a radiographic image processing application, wherein the reference points identify similar image positions in separate images of substantially the same object, said method comprising the steps of: obtaining first and second radiographic images representing substantially the same object taken at different times; presenting a “zoomed out” view of the full extent of the first and second radiographic images side by side in a first graphical user interface view in order to allow a user to place potential reference points in their approximate locations on each image, all the while maintaining context for the user; presenting a “zoomed in” view of an area of the first and second images around each of the potential tie points in a second graphical user interface view to allow the user to refine the placement of the potential reference points, thereby enabling the generation of refined reference points suitable for registration; registering the first and second images by utilizing the refined reference points, thereby producing first and second registered images; and utilizing the registered images in a third graphical user interface view to indicate the amount of mismatch between the first and second images.