Method and apparatus for spatial filtering in an intravascular u

Details Method and apparatus for spatial filtering in an intravascular u Method and apparatus for spatial filtering in an intravascular u

1997-11-07

1999-03-23

Jaworski, Francis J.

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

A61B 800

Patent

active

058852182

ABSTRACT:
A spatial filtering method and apparatus which is particularly useful for addressing the problem of pulsation motion in intravascular ultrasound imaging, but may also be applied to imaging systems in other environments. According to a specific embodiment, the present invention provides a method and related apparatus for determining relative motion (rotation, pulsation, or in-plane translation and/or a combination thereof) in orthogonal r-.theta. memory space, prior to scan conversion, between a first and second image frame, and displaying an accurate image and/or performing pre-scan conversion image stabilization of the image.

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Barnea, Daniel I. and Silverman, Harvey F., "A Class of Algorithms for Fast Digital Image Registration," IEEE Transactions on Computers, vol. C-21, No. 2, Feb. 1972, pp. 179-186.

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