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Aura Hernandez-Sabate, Debora Gil, Jaume Garcia and Enric Marti. 2011. Image-based Cardiac Phase Retrieval in Intravascular Ultrasound Sequences. T-UFFC, 58(1), 60–72.
Abstract: Longitudinal motion during in vivo pullbacks acquisition of intravascular ultrasound (IVUS) sequences is a major artifact for 3-D exploring of coronary arteries. Most current techniques are based on the electrocardiogram (ECG) signal to obtain a gated pullback without longitudinal motion by using specific hardware or the ECG signal itself. We present an image-based approach for cardiac phase retrieval from coronary IVUS sequences without an ECG signal. A signal reflecting cardiac motion is computed by exploring the image intensity local mean evolution. The signal is filtered by a band-pass filter centered at the main cardiac frequency. Phase is retrieved by computing signal extrema. The average frame processing time using our setup is 36 ms. Comparison to manually sampled sequences encourages a deeper study comparing them to ECG signals.
Keywords: 3-D exploring; ECG; band-pass filter; cardiac motion; cardiac phase retrieval; coronary arteries; electrocardiogram signal; image intensity local mean evolution; image-based cardiac phase retrieval; in vivo pullbacks acquisition; intravascular ultrasound sequences; longitudinal motion; signal extrema; time 36 ms; band-pass filters; biomedical ultrasonics; cardiovascular system; electrocardiography; image motion analysis; image retrieval; image sequences; medical image processing; ultrasonic imaging
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Felipe Lumbreras and Joan Serrat. 1996. Wavelet filtering for the segmentation of marble images. Optical Engineering, 35(10).
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Felipe Lumbreras and Joan Serrat. 1996. Segmentation of petrographical images of marbles. Computers and Geosciences, 22(5), 547–558.
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J. Pladellorens, Joan Serrat, A. Castell and M.J. Yzuel. 1993. Using mathematical morphology to determine left ventricular contours..
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J. Pladellorens, M.J. Yzuel, J. Castell and Joan Serrat. 1993. Calculo automatico del volumen del ventriculo izquierdo. Comparacion con expertos..
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A. Pujol, Jordi Vitria, Felipe Lumbreras and Juan J. Villanueva. 2001. Topological principal component analysis for face encoding and recognition. PRL, 22(6-7), 769–776.
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A.F. Sole, S. Ngan, G. Sapiro, X. Hu and Antonio Lopez. 2001. Anisotropic 2-D and 3-D Averaging of fMRI Signals. IEEE Transactions on Medical Imaging, 2020(2), 86–93.
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Daniel Ponsa, Robert Benavente, Felipe Lumbreras, Judit Martinez and Xavier Roca. 2003. Quality control of safety belts by machine vision inspection for real-time production. Optical Engineering (IF: 0.877), 42(4), 1114–1120.
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A.F. Sole, Antonio Lopez and G. Sapiro. 2001. Crease Enhancement Diffusion. Computer Vision and Image Understanding, 84(2): 241–248 (IF: 1.298).
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Antonio Lopez, Ernest Valveny and Juan J. Villanueva. 2005. Real-time quality control of surgical material packaging by artificial vision. Assembly Automation, 25(3).
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