2016 JRNL PP Hailong He - 1.pdf
Terbatas  Irwan Sofiyan
» Gedung UPT Perpustakaan
Terbatas  Irwan Sofiyan
» Gedung UPT Perpustakaan
High fidelity optoacoustic (photoacoustic) tomography
requires dense spatial sampling of optoacoustic signals using
point acoustic detectors. However, in practice, spatial resolution
of the images is often limited by limited sampling either due to
coarse multi-element arrays or time in raster scan measurements.
Herein, we investigate a method that integrates information from
multiple optoacoustic images acquired at sub-diffraction steps into
one high resolution image by means of an iterative registration algorithm.
Experimental validations performed in target phantoms
and ex vivo tissue samples confirm that the suggested approach
renders significant improvements in terms of optoacoustic image
resolution and quality without introducing significant alterations
into the signal acquisition hardware or inversion algorithms.