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Enhanced visibility through microbubble-induced photoacoustic fluctuation imaging

Autor: Inzunza-Ibarra, Marco A., Navarro-Becerra, J. Angel, Narumanchi, Venkatalakshmi, Bottenus, Nick, Murray, Todd W., Borden, Mark A.

A photoacoustic contrast mechanism is presented based on the photoacoustic fluctuations induced by microbubbles flowing inside a micro vessel filled with a continuous absorber. It is demonstrated that the standard deviation of a homogeneous absorber

Externí odkaz: http://arxiv.org/abs/2110.12238

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Superresolution photoacoustic tomography using random speckle illumination and second order moments

Autor: Malik, Osman Asif, Narumanchi, Venkatalakshmi Vyjayanthi, Becker, Stephen, Murray, Todd W.

Publikováno v: 2021 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), 2021, pp. 141-145

Idier et al. [IEEE Trans. Comput. Imaging 4(1), 2018] propose a method which achieves superresolution in the microscopy setting by leveraging random speckle illumination and knowledge about statistical second order moments for the illumination patter

Externí odkaz: http://arxiv.org/abs/2105.03809

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Super-resolution photoacoustic imaging through a scattering wall

Autor: Conkey, Donald B., Caravaca-Aguirre, Antonio M., Dove, Jacob D., Ju, Hengyi, Murray, Todd W., Piestun, Rafael

Imaging through opaque, highly scattering walls is a long sought after capability with potential applications in a variety of fields. The use of wavefront shaping to compensate for scattering has brought a renewed interest as a potential solution to

Externí odkaz: http://arxiv.org/abs/1310.5736

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