Beam space processing for low-cost scanners
Yükleniyor...
Tarih
1996
Yazarlar
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I E E E
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A subaperture processing technique suitable for low-cost ultrasound imaging systems is presented. The technique is based on multi-element synthetic aperture approach and beam interpolation. A large receive aperture is synthesized using a transmit subaperture at the transducer array center and a number of non-overlapping receive subapertures multiplexed across the array. The number of beam lines scanning a sector angle is chosen according to the spatial Nyquist criteria of a single transmit-receive subaperture. The beam count is increased through digital interpolation, where a linear filter with a different spatial frequency band for each subaperture is employed. This technique reduces the number of firings in data acquisition and hence permits real-time synthetic aperture processing with low susceptibility to motion artifacts.
Açıklama
1996 IEEE Ultrasonic Symposium -- NOV 03-06, 1996 -- SAN ANTONIO, TX
Anahtar Kelimeler
Kaynak
1996 Ieee Ultrasonics Symposium, Proceedings, Vols 1 And 2
WoS Q Değeri
N/A
Scopus Q Değeri
N/A
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closedAccess
