Compressed quantitative acoustic microscopy (regular paper)

Compressed quantitative acoustic microscopy (regular paper). Kim, J., Hill, P., Canagarajah, N., Rohrbach, D., Kouamé, D., Mamou, J., Achim, A., & Basarab, A. In IEEE International Ultrasonics Symposium, Washington, 06/09/2017-09/09/2017, pages 1–4, http://www.ieee.org/, September, 2017. IEEE : Institute of Electrical and Electronics Engineers.

Paper abstract bibtex

Scanning acoustic microscopy is a well-accepted modality for forming quantitative 2D maps of acoustic properties of soft tissues at microscopic scales. In our studies, the sample is raster-scanned with a spatial step size of 2$μ$m using a 250 MHz transducer resulting in 3D RF data cubes. Each RF signal is processed to obtain, for each spatial location, acoustic parameters, e.g., the speed of sound. The scanning time is directly dependent on the sample size and can range from few minutes to hours. In order to May / mayntain constant experimental conditions for the sensitive thin sectioned samples, the scanning time is an important practical issue. Hence, the Mayn objective of this work is to reduce the scanning time by reconstructing acoustic microscopy images from spatially under sampled measurements, based on the theory of compressive sampling. A recently proposed approximate message passing method using a Cauchy maximum a posteriori image denoising algorithm is thus employed to account for the non-Gaussianity of quantitative acoustic microscopy wavelet coefficients.

@InProceedings{ Ki2017.1,
author = {Kim, Jonghoon and Hill, Paul and Canagarajah, Nishan and Rohrbach, Daniel and Kouam\'e, Denis and Mamou, Jonathan and Achim, Alin and Basarab, Adrian},
title = "{Compressed quantitative acoustic microscopy (regular paper)}",
booktitle = "{IEEE International Ultrasonics Symposium, Washington, 06/09/2017-09/09/2017}",
year = {2017},
month = {September},
publisher = {IEEE : Institute of Electrical and Electronics Engineers},
address = {http://www.ieee.org/},
pages = {1--4},
language = {anglais},
URL = {https://doi.org/10.1109/ULTSYM.2017.8092328 - https://oatao.univ-toulouse.fr/22081/},
abstract = {Scanning acoustic microscopy is a well-accepted modality for forming quantitative 2D maps of acoustic properties of soft tissues at microscopic scales. In our studies, the sample is raster-scanned with a spatial step
size of 2$\mu$m using a 250 MHz transducer resulting in 3D RF data cubes. Each RF signal is processed to obtain, for each spatial location, acoustic parameters, e.g., the speed of sound. The scanning time is directly dependent on the
sample size and can range from few minutes to hours. In order to May / mayntain constant experimental conditions for the sensitive thin sectioned samples, the scanning time is an important practical issue. Hence, the Mayn
objective of this work is to reduce the scanning time by reconstructing acoustic microscopy images from spatially under sampled measurements, based on the theory of compressive sampling. A recently proposed approximate message
passing method using a Cauchy maximum a posteriori image denoising algorithm is thus employed to account for the non-Gaussianity of quantitative acoustic microscopy wavelet coefficients.}
}

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