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To appear in Proc. IEEE Ultrason. Symp., San Juan, Puerto Rico, 2000 1 SPARSE ARRAYS FOR REAL-TIME 3D IMAGING,
 

Summary: To appear in Proc. IEEE Ultrason. Symp., San Juan, Puerto Rico, 2000 1
SPARSE ARRAYS FOR REAL-TIME 3D IMAGING,
SIMULATED AND EXPERIMENTAL RESULTS
Andreas Austeng and Sverre Holm
Department of Informatics, University of Oslo, P.O.Box 1080 Blindern, N-0316 Oslo, Norway.
Abstract This work presents the outputs from a
project which aimed to lay the foundation of a 3D ul-
trasound imaging system where the emphasis was on
real-time data acquisition and near real-time data vi-
sualization. To be able more precisely to describe the
behavior of a sparse array system, a 25 Gbyte dataset
containing every transmit and receive combination of a
50 50-element fully connected 3MHz array has been
collected. The data have been processed off line on a
cluster of 150 UNIX work stations to form experimen-
tal synthetic aperture 3D volume images.
We propose new methods based on the principle of
suppression of grating lobes to form symmetric and
non-symmetric regular sparse periodic and radially pe-
riodic designs. The performance of the new layouts

  

Source: Austeng, Andreas - Institutt for Informatikk, Universitetet i Oslo

 

Collections: Computer Technologies and Information Sciences