Enhanced visualization of weak image sources in the vicinity of

Details Enhanced visualization of weak image sources in the vicinity of Enhanced visualization of weak image sources in the vicinity of

1997-11-10

2000-05-02

Lee, Thomas D.

Image analysis

Image enhancement or restoration

382128, 382257, 382270, 382283, G06K 940

Patent

active

060582189

ABSTRACT:
A volumetric data set having a high intensity, dominant structure, near smaller, less intense structures is smoothed and segmented to separate the dominant structure. The dominant structure is masked out to result in the smaller, less intense structures which are displayed. For example, dominant structures such as the blood pool in atria, ventricles, and the aorta of a 3D angiography data set is segmented and removed from the data set using mathematical morphology operations to result in an enhanced data set. The enhanced data set is displayed by conventional means such as a maximum intensity projection (MIP) at different views to yield images of coronary arteries.

REFERENCES:
patent: 5659629 (1997-08-01), Cline
"Coronary Arteries: Three-dimensional MR Imaging with Respective Respiratory Gating" by. D. Li, S. Kaushikkar, E.M. Haacke et al., Radiology 201, 857-863 (1996).
"Fast Three Dimensional Magnetic Resonance Imaging" by P. Irarrazaval, D. G. Nishimmura, Magn. Reson. Med. 33, 656-662, (1995).
"Vascular Morphology by Three-dimensional Magnetic Resonance Imaging", Magnetic Resonance Imaging, by H.E. Cline, W.E. Lorensen, R.J. Herfkens, G.A. Johnson, G.H. Glover, vol. 7, pp. 45-54 (1989).
"Image Analysis and Mathematical Morphology" by J. Serra, Academic Press, New York, pp. 373-416, (1982).

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