Capon Beamforming for Active Ultrasound Imaging Systems

Author

Holm, Sverre ; Synnevåg, Johan-Fredrik ; Austeng, Andreas

Author_Institution

Waves & Acoust. Lab., ESPCI, Paris

fYear

2009

fDate

4-7 Jan. 2009

Firstpage

60

Lastpage

65

Abstract

Medical ultrasound imaging has unique requirements regarding spatial and amplitude resolution, near-field focusing, wide bandwidth, and real-time operation. Only recently has Capon beamforming been adapted to this. We give examples of images of point targets, cysts, and regions dominated by speckle and discuss how subaperture smoothing, diagonal loading and range/time averaging must be balanced for best performance.

Keywords

array signal processing; medical image processing; ultrasonic imaging; Capon beamforming; active ultrasound imaging systems; amplitude resolution; diagonal loading; medical ultrasound imaging; near-field focusing; real-time operation; spatial resolution; speckle; subaperture smoothing; wide bandwidth; Acoustic imaging; Apertures; Array signal processing; Biomedical imaging; Delay; High-resolution imaging; Image resolution; Sonar; Spatial resolution; Ultrasonic imaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Signal Processing Workshop and 5th IEEE Signal Processing Education Workshop, 2009. DSP/SPE 2009. IEEE 13th

Conference_Location

Marco Island, FL

Print_ISBN

978-1-4244-3677-4

Electronic_ISBN

978-1-4244-3677-4

Type

conf

DOI

10.1109/DSP.2009.4785896

Filename

4785896