04792900 is referenced by 56 patents and cites 8 patents.

A radiographic scanner (A) generates a high energy image representation which is stored in a high energy image matrix (V) and a low energy image representation which is stored in a low energy image memory (U). A pair of filter functions selecting circuits (C) select a first or soft tissue specific filter function and second or bone specific filter function, respectively. The soft tissue filter function selecting circuit selects and adjusts the soft tissue filter function in accordance with the pixel value of the low energy image representation for each corresponding pair of pixel values. Convolvers (44, 46) convolve pixel values from the high and low energy image representations with the selected and adjusted filter functions. A soft tissue transform function (48) transforms the filtered high and low energy image representations into a soft tissue or other material specific image representation (42). The other filter selecting and adjusting circuit selects and adjusts the bone specific filter functions which are convolved with the high and low energy image representations by convolvers (54, 56). A bone specific transform function (58) transforms the filtered high and low energy image representations into a bone basis image.

Title
Adaptive filter for dual energy radiographic imaging
Application Number
6/935282
Publication Number
4792900
Application Date
November 26, 1986
Publication Date
December 20, 1988
Inventor
Karen L Lauro
S. Euclid
OH, US
Richard A Sones
Cleveland Hts.
OH, US
Agent
Fay Sharpe Beall Fagan Minnich & McKee
Assignee
Picker International
OH, US
IPC
G06F 15/42
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