A new adaptive imaging technique using generalized coherence factor
Resource
Ultrasonics Symposium, 2002. Proceedings. 2002 IEEE
Journal
Ultrasonics Symposium, 2002
Pages
-
Date Issued
2002-10
Date
2002-10
Author(s)
Li, Meng-Lin
DOI
1051-0117
Abstract
Beamforming artifacts due to sound velocity inhomogeneities degrade both spatial and contrast resolution. In this paper, a new adaptive imaging technique is proposed to minimize such beam formation artifacts using the generalized coherence factor (GCF) weighting. The simulation and experimental results show that the proposed technique can significantly improve the degraded image quality due to phase aberration for both point targets and diffuse scatterers. The GCF technique is also compared with the correlation-based technique and the parallel receive beam technique (a.k.a. PARCA). Both performance and computational complexity are also discussed.
Type
journal article
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