Precomputed automatic pixel shift for review of digital...

Details Precomputed automatic pixel shift for review of digital... Precomputed automatic pixel shift for review of digital...

2007-07-18

2011-12-13

Wang, Claire X (Department: 2624)

Image analysis

Applications

Biomedical applications

Reexamination Certificate

active

08077952

ABSTRACT:
Disclosed are method and apparatus for motion correction of Digital Subtracted Angiography (DSA) images. Prior to display of DSA image frames, a pixel shift vector is calculated for each fill frame. For a fill frame in which a pixel shift vector cannot be directly calculated, an approximate pixel shift vector is interpolated between, or extrapolated from, other pixel shift vectors. A mask frame is shifted by a pixel shift vector. The resulting shifted mask frame is subtracted from the corresponding fill frame to generate a motion-corrected subtracted frame, which is then displayed on a video display. Motion correction is performed prior to diagnostic review.

REFERENCES:
patent: 4559557 (1985-12-01), Keyes et al.
patent: 4870692 (1989-09-01), Zuiderveld et al.
patent: 5048103 (1991-09-01), Leclerc et al.
patent: 5690106 (1997-11-01), Bani-Hashemi et al.
patent: 5848121 (1998-12-01), Gupta et al.
patent: 2005/0111719 (2005-05-01), Pescatore et al.
patent: 2005/0165292 (2005-07-01), Simon et al.
patent: 2005/0203373 (2005-09-01), Boese et al.
Siemens Operator Manual vol. 2, Axiom Artis, cover page and pp. 81-87, 2004.
Physics of Medical X-Ray Imaging, Chapter 10—Digital Subtraction Angiography (DSA), downloaded from http://ric.uthscsa.edu/personalpages/lancaste/DI-II—Chapters/DI—chap10.pdf on Jul. 5, 2007.

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