Graphics processing unit accelerating compressed sensing photoacoustic computed tomography with total variation.
Appl Opt
; 59(3): 712-719, 2020 Jan 20.
Article
en En
| MEDLINE
| ID: mdl-32225199
Photoacoustic computed tomography with compressed sensing (CS-PACT) is a commonly used imaging strategy for sparse-sampling PACT. However, it is very time-consuming because of the iterative process involved in the image reconstruction. In this paper, we present a graphics processing unit (GPU)-based parallel computation framework for total-variation-based CS-PACT and adapted into a custom-made PACT system. Specifically, five compute-intensive operators are extracted from the iteration algorithm and are redesigned for parallel performance on a GPU. We achieved an image reconstruction speed 24-31 times faster than the CPU performance. We performed in vivo experiments on human hands to verify the feasibility of our developed method.
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Bases de datos:
MEDLINE
Asunto principal:
Gráficos por Computador
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Procesamiento de Imagen Asistido por Computador
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Tomografía Computarizada por Rayos X
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Técnicas Fotoacústicas
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Mano
Límite:
Humans
Idioma:
En
Revista:
Appl Opt
Año:
2020
Tipo del documento:
Article