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An adaptive ultrasound sound speed optimization based on image contrast analysis / 生物医学工程学杂志
Journal of Biomedical Engineering ; (6): 1094-1109, 2011.
Artículo en Chino | WPRIM | ID: wpr-274948
ABSTRACT
In order to get real time ultrasound images with clear structure and improved contrast, an adaptive ultrasound sound speed optimization method based on image contrast analysis was investigated. It firstly introduced the dynamic beamforming of ultrasound system, as well as the definition of assumed system's sound speed and the true sound speed propagated in tissues the degrade image quality due to their mismatch was also discussed. After given the pixel gray level value based ultrasound image contrast ratio, the basic idea to precisely estimate the true sound speed for real time system sound speed was proposed. Algorithms have been verified both in tissue-mimicking phantoms with known sound speeds and in vivo ultrasound images, compared with other existing method. The testing results showed that this new method not only produced accurate sound speed for ultrasound image optimization, but also finely met the critical computation requirement for real time applications.
Asunto(s)
Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Sonido / Algoritmos / Interpretación de Imagen Asistida por Computador / Aumento de la Imagen / Ultrasonografía / Fantasmas de Imagen / Métodos Tipo de estudio: Estudio diagnóstico Límite: Humanos Idioma: Chino Revista: Journal of Biomedical Engineering Año: 2011 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Sonido / Algoritmos / Interpretación de Imagen Asistida por Computador / Aumento de la Imagen / Ultrasonografía / Fantasmas de Imagen / Métodos Tipo de estudio: Estudio diagnóstico Límite: Humanos Idioma: Chino Revista: Journal of Biomedical Engineering Año: 2011 Tipo del documento: Artículo