Eigenspace-based minimum variance combined with delay multiply and sum beamformer : application to linear-array photoacoustic imaging

• Main Authors: Mozaffarzadeh, Moein, Mahloojifar, Ali, Periyasamy, Vijitha, Pramanik, Manojit, Orooji, Mahdi
• Other Authors: School of Chemical and Biomedical Engineering
• Format: Article
• Language: English
• Published: 2018
• Subjects: Photoacoustic Imaging; Beamforming; DRNTU::Engineering::Chemical engineering
• Online Access: https://hdl.handle.net/10356/87369; http://hdl.handle.net/10220/46309
• Institution: Nanyang Technological University

In photoacoustic imaging (PA), delay-and-sum (DAS) algorithm is the most commonly used beamformer. However, it leads to a low resolution and high level of sidelobes. Delay-multiply-and sum (DMAS) was introduced to provide lower sidelobes compared to DAS. In this paper, to improve the resolution and...