Sparsity-based beamforming to enhance two-dimensional linear-array photoacoustic tomography

• Main Authors: Mozaffarzadeh, Moein, Periyasamy, Vijitha, Paridar, Roya, Pramanik, Manojit, Mehrmohammadi, Mohammad, Orooji, Mahdi
• Other Authors: School of Chemical and Biomedical Engineering
• Format: Article
• Language: English
• Published: 2019
• Subjects: Photoacoustic Imaging; Beamforming; DRNTU::Engineering::Chemical engineering
• Online Access: https://hdl.handle.net/10356/90871; http://hdl.handle.net/10220/48843
• Institution: Nanyang Technological University

In linear-array photoacoustic imaging (PAI), beamforming methods can be used to reconstruct the images. Delay-and-sum (DAS) beamformer is extensively used due to its simple implementation. However, this algorithm results in high level of sidelobes and low resolution. In this paper, it is proposed to...