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Value of ultrasonographic contrast in duplex scanning of leg arteries - Comparison with conventional duplex scanning and arteriography
(Edizioni Minerva Medica, 2004-09-01)
Aim. Duplex scanning has been used in the evaluation of the aorta and proximal arteries of the lower extremities, but has limitations in evaluating the arteries of the leg. The utilization of ultrasonographic contrast (USC) ...
Value of ultrasonographic contrast in duplex scanning of leg arteries. Comparison with conventional duplex scanning and arteriography
(2004-09-01)
Aim. Duplex scanning has been used in the evaluation of the aorta and proximal arteries of the lower extremities, but has limitations in evaluating the arteries of the leg. The utilization of ultrasonographic contrast (USC) ...
Technique to combine images produced by different propagation modes of guided waves for damage detection and contrast improvement in plate-like structures
(2012-12-01)
This paper describes an image compounding technique based on the use of different apodization functions, the evaluation of the signals phases and information from the interaction of different propagation modes of Lamb waves ...
Technique to combine images produced by different propagation modes of guided waves for damage detection and contrast improvement in plate-like structures
(2012-12-01)
This paper describes an image compounding technique based on the use of different apodization functions, the evaluation of the signals phases and information from the interaction of different propagation modes of Lamb waves ...
Sensibilidade ao contraste a grades senoidais de freqüências espaciais baixas em crianças
(PPG em Psicologia, Pontifícia Universidade Católica de Campinas, 2008)
O objetivo deste trabalho foi determinar a função de sensibilidade ao contraste para freqüências espaciais de 0,25; 0,5; 1,0 e 2,0 ciclos por grau em crianças de 4 a 13 anos. Foram estimados limiares de contraste para 60 ...
Mejoramiento de contraste y razón señal a ruido de imágenes digitales de geles de electroforesis por medio de fusión y ajuste multiparamétrico de la captura
(Instituto Tecnológico de Costa Rica. Escuela de Electrónica, 2011)
Este documento se concentra en una aplicación para caracterización molecular de organismos,
específicamente en lo referente al mejoramiento de la calidad de imágenes de geles de
electroforesis.
En general, las imágenes ...
Contrast Enhancement Based on a Morphological Rational Multiscale Algorithm
(Revista Computación y Sistemas; Vol. 14 No. 3, 2011-03-08)
Abstract. Contrast enhancement is an important task in
image processing and it is commonly used as a preprocessing
step in order to improve the results for other
tasks such as segmentation. However, not only do some
methods ...