Image analysis – Image transformation or preprocessing – Correlation
Patent
1998-04-17
2000-07-11
Au, Amelia
Image analysis
Image transformation or preprocessing
Correlation
382130, 382283, G06K 900, G06K 964, G06K 936
Patent
active
060884886
ABSTRACT:
A reference image R is selected and a region of interest (ROI) is interactively selected encompassing a desired structure from a sequence of images of a moving structure. This ROI is cross-correlated with other real-time images by multiplication in the Fourier frequency domain, to determine if the desired structure is present in the image. If the structure is present, this image may be averaged with other images in which the structure is present to produce higher resolution adaptively averaged images. This invention is particularly useful in imaging coronary vessels. In an alternative embodiment, the offset of the desired structure may be calculated in a series of images. The images may then be sorted by this offset, and played back in that order to provide a "movie-like" display of the desired structure moving with the periodic motion.
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Curwen Rupert William Meldrum
Hardy Christopher Judson
Au Amelia
General Electric Company
Ingraham Donald S.
Miller Martin E.
Testa Jean K.
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