intravascular ultrasound

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2 total messages Started by Coral Bernier Tue, 08 Sep 1992 17:56

#447

Author: Coral Bernier
Date: Tue, 08 Sep 1992 17:56

22 lines
1360 bytes

I am working with intravascular ultrasound images and am trying
to either apply existing or develop new algorithms to do the
following:

(1) Identify circularity in the image (I am trying to identify
the physiologic center of the vessel to be used for image
registration and subsequent 3-D reconstruction)

(2) Use of beam pattern in deconvolution of the images (I have
generated images depicting point spread function of transducer)
These images highly resemble radar images and I would also appreciate
receiving any information on how antenna beam patterns are used in 
image processing.

Please post response to this newsgroup and/or respond by email
to the address below.

Thanks.
-----------------------------------------------------------------------
Coral Bernier				Center for Bioengineering, WD-12
coral@coral.bioeng.washington.edu	Univ of Washington
Phone: (206)685-2740			Seattle  WA 98195

Re: intravascular ultrasound

#451

Author: Eric Jacobsen
Date: Tue, 08 Sep 1992 19:50

21 lines
1771 bytes

In article <1992Sep8.175626.12531@u.washington.edu> coral@milton.u.washington.edu (Coral Bernier) writes:

   These images highly resemble radar images and I would also appreciate
   receiving any information on how antenna beam patterns are used in 
   image processing.

Check out anything on Synthetic Aperture Radar, which uses the doppler
phase history of a target moving laterally through the beam to
synthetically sharpen the beamwidth (dramatically).

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