Eigenspace based adaptive beamforming for photoacoustic computed tomography

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review

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Author(s)

Detail(s)

Original languageEnglish
Title of host publicationPhotons Plus Ultrasound
Subtitle of host publicationImaging and Sensing 2018
EditorsAlexander A. Oraevsky, Lihong V. Wang
PublisherSPIE
ISBN (Electronic)9781510614741
ISBN (Print)9781510614734
Publication statusPublished - Jan 2018

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume10494
ISSN (Print)1605-7422

Conference

TitlePhotons Plus Ultrasound: Imaging and Sensing 2018
PlaceUnited States
CitySan Francisco
Period28 January - 1 February 2018

Abstract

Traditional back-projection(BP) method suffers from low resolution and high peak sidelobe level (PSL). A new method named eigenspace based adaptive beamforming (EAB) is proposed for photoacoustic computed tomography (PACT). Adaptive beamforming (AB) suppresses the interference and noise signal to improve the lateral resolution, eigenspace can further restrain the off-axis signal to eliminate the artifacts. The simulated experiment shows that the lateral resolution after BP, AB and EAB are 0.99, 0.31, and 0.31mm, respectively. The actual point targets experimental results show that the new method improves the lateral resolution by 67.9% compared with BP, which is agreed with simulated results. New method also improves the PSL by 39.6dB and 42.6dB compared with BP and AB, eliminates the artifacts and improvs imaging quality of the PACT.

Research Area(s)

  • Spatial filters, Ultrasonography, Digital filtering, Image resolution, Interference (communication), Photoacoustic imaging, Photoacoustic tomography, Signal detection

Citation Format(s)

Eigenspace based adaptive beamforming for photoacoustic computed tomography. / Li, Jiake; Wen, Guohua; Chen, Xiaodong; Yu, Daoyin; Wang, Lidai.

Photons Plus Ultrasound: Imaging and Sensing 2018. ed. / Alexander A. Oraevsky; Lihong V. Wang. SPIE, 2018. 104944B (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 10494).

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review