Title: Travel-Time Tomography for Local Sound Speed Reconstruction Using Average Sound Speeds
Abstract: Our previous work on estimating the local speed of sound from average sound speed assumes a perfectly layered medium where sound speed is only allowed to vary axially away from the transducer surface. This layered-medium approach relies on inverting the relationship between the local interval sound speeds in each layer and the effective average sound speed up to a particular imaging depth. The primary limitation of this approach is that local sound speed estimation can become inaccurate in the presence of lateral variations in sound speed or a curved transducer surface. To better estimate sound speed in the presence of these non-idealities, we propose a travel-time tomographic approach that accounts for propagation paths from the scattering volume to each transducer element.
Publication Year: 2019
Publication Date: 2019-10-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 11
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