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Variational Iterative Algorithms in Photoacoustic Tomography with Variable Sound Speed
Variational Iterative Algorithms Photoacoustic Tomography
2014/9/26
In this paper, we investigate the adjoint equation in photoacoustic tomography with
variable sound speed, and propose three variational iterative algorithms. The basic
idea of these algorithms is to...
Measurements of Sound-Speed in the Tissue of Juvenile Southern Bluefin Tuna（Thunnus maccoyii）for Target Strength Estimation
Juvenile Southern Bluefin Tuna Thunnus maccoyii Target Strength Estimation
2009/8/19
The ratio between the speed of sound in animals and that of the surrounding water (the sound-speed contrast), particularly for fish lacking any gas-filled organs or for zooplankton, is an important pa...
Measurements of Specific Density of and Sound Speed in Nomura's Jellyfish Nemopilema nomurai to Estimate their Target Strength using a Theoretical Scattering Model
Specific Density Nomura's Jellyfish Nemopilema nomurai Theoretical Scattering Model
2009/8/19
The jellyfish Nemopilema nomurai, which reaches up to 2 m in diameter and 200 kg in weight, has appeared in large numbers in the Sea of Japan during the last several years and has had a negative effec...