Authors:
Ryoya Kozai
1
;
Norio Tagawa
1
;
Masasumi Yoshizawa
2
and
Takasuke Irie
1
;
3
Affiliations:
1
Electrical Engineering and Computer Science, Tokyo Metropolitan University, Hino-shi, Tokyo, Japan
;
2
Tokyo Metropolitan College of Industrial Technology, Arakawa-ku, Tokyo, Japan
;
3
Microsonic Co. Ltd., Kokubunji-shi, Tokyo, Japan
Keyword(s):
Ultrasonic Imaging, Minimum Variance Beamforming, Frequency Compounding, High Resolution.
Abstract:
Recently, coherent plane-wave compounding (CPWC) that achieves high spatiotemporal resolution has been studied actively as a spatial compounding beamformer. Further, various frequency compounding methods have been proposed for reducing speckle noise. We already proposed the method called frequency and plane-wave compounding minimum variance distortionless response (FPWC-MVDR), which achieves high spatial resolution imaging by simultaneously optimizing frequency and spatial compounding based on minimum variance scheme. In the algorithm of this method, the data-compounded-on-receive MVDR (DCR-MVDR) principle developed for CPWC is extended and applied. In this study, we analyze the features and characteristics of FPWC-MVDR and the weaknesses to be solved in the future through experiments.