Patent ID: 6885764
Filing Date: 2005-04-26
Classification: A61B,G06T

Abstract:
1. A method to be used with a set of CT helical data corresponding to a thick slice of interest (TSOI), the method for generating a thick slice data weighting function w(β) by combining slice specific Z-smoothing scalars zw and helical slice image weight functions hw corresponding to first through N slice images to be combined to generate the thick slice image corresponding to the TSOI, the method comprising the steps of: (a) for the first slice, mathematically combining the helical weight function hw and an image specific scalar zw(n) to generate a scaled weighting function w (b) storing scaled weighting function w (c) for the next adjacent slice, mathematically combining the helical weighting function hw and an image specific scalar zw(n) to generate a scaled weighting function w (d) identifying an overlapping segment of the scaled weighting function w (e) storing the function w (f) repeating steps (c) through (e) for each of the slice images to be combined to generate the thick image; and (g) outputting the intermediate weighting function array as a final weighting array w