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Benlei Zhang, Fei Yang, Fuguo Wang and Baowei Lu
Active optics and aberration correction techniques for sparse aperture segmented mirrors are studied. A finite element model of the sparse aperture segmented mirror was established, and a multi-aperture aberration polynomial was derived. According to the...
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Moein Mozaffarzadeh, Martin D. Verweij, Nico de Jong and Guillaume Renaud
While transcranial ultrasound imaging is a promising diagnostic modality, it is still hindered due to phase aberration and multiple scattering caused by the skull. In this paper, we compare near-field phase-screen modeling (PS) to a geometry-based phase ...
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Huong Nguyen Minh, Marie Muller and Kay Raum
Delay-and-sum (DAS) beamforming of backscattered echoes is used for conventional ultrasound imaging. Although DAS beamforming is well suited for imaging in soft tissues, refraction, scattering, and absorption, porous mineralized tissues cause phase aberr...
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