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V. Valev, & Petia Radeva. (1993). On the Determining of Non-Reducible Descriptors for Multidimensional Pattern Recognition Problems..
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Amir A.Amini, Yasheng Chen, Mohamed Elayyadi, & Petia Radeva. (2001). Tag Surface Reconstruction and Tracking of Myocardial Beads from SPAMM-MRI with Parametric B-Spline Surfaces. TMI - IEEE Transactions on Medical Imaging, 94–103.
Abstract: Magnetic resonance imaging (MRI) is unique in its ability to noninvasively and selectively alter tissue magnetization, and create tag planes intersecting image slices. The resulting grid of signal voids allows for tracking deformations of tissues in otherwise homogeneous-signal myocardial regions. In this paper, we propose a specific spatial modulation of magnetization (SPAMM) imaging protocol together with efficient techniques for measurement of three-dimensional (3-D) motion of material points of the human heart (referred to as myocardial beads) from images collected with the SPAMM method. The techniques make use of tagged images in orthogonal views by explicitly reconstructing 3-D B-spline surface representation of tag planes (tag planes in two orthogonal orientations intersecting the short-axis (SA) image slices and tag planes in an orientation orthogonal to the short-axis tag planes intersecting long-axis (LA) image slices). The developed methods allow for viewing deformations of 3-D tag surfaces, spatial correspondence of long-axis and short-axis image slice and tag positions, as well as nonrigid movement of myocardial beads as a function of time.
Keywords: B-spline surfaces, cardiac motion, myocardial beads, myocardial infarction, tagged MRI.
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Margarita Torre, & Petia Radeva. (2000). Agricultural-Field Extraction on Aerial Images by Region Competition Algorithm. In 15 th International Conference on Pattern Recognition (Vol. 1, pp. 313–316).
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V. Valev, B. Sankur, & Petia Radeva. (2000). Generalized Non Reducible Descriptors. In 15 th International Conference on Pattern Recognition (Vol. 2, p. 397).
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Xose M. Pardo, & Petia Radeva. (2000). Discriminant snakes for 3D reconstruction in medical Images. In 15 th International Conference on Pattern Recognition (Vol. 4, pp. 336–339).
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V. Valev, & Petia Radeva. (1992). Determining structural descriptions by boolean formulas advances in structural and syntactic Pattern Recognition..
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V. Valev, & Petia Radeva. (1992). A Method of Solving Pattern or image Recognition Problems by Learning Boolean Formulas..
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V. Valev, & Petia Radeva. (1992). Determining Structural Description by Boolean Formulas. In H. Bunke (Ed.), Advances in Structural and Syntactic Pattern Recognition (Vol. 5, 131–140). Machine Perception and Artificial Intelligence:. World Scientific.
Abstract: Pattern recognition is an active area of research with many applications, some of which have reached commercial maturity. Structural and syntactic methods are very powerful. They are based on symbolic data structures together with matching, parsing, and reasoning procedures that are able to infer interpretations of complex input patterns.
This book gives an overview of the latest developments and achievements in the field.
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David Rotger, Petia Radeva, E Fernandez-Nofrerias, & J. Mauri. (2002). Registering External and Internal Morphological Images of Coronary Vessels..
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Cristina Cañero, E Fernandez-Nofrerias, J. Mauri, & Petia Radeva. (2002). Modelling the Acquisition Geometry of a C-arm Angiography System for 3D Reconstruction..
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M. Gomez, J. Mauri, E. Fernandez-Nofrerias, Oriol Rodriguez-Leor, Carme Julia, David Rotger, et al. (2002). Una nova aplicacio informatica per a la correlacio d imatges angiografiques i d ecografia intracoronaria. Revista de la Societat Catalana de Cardiologia, 4(4): 42, XIV Congres de la Societat Catalana de Cardiologia..
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M. Gomez, J. Mauri, E. Fernandez-Nofrerias, Oriol Rodriguez-Leor, Carme Julia, Misael Rosales, et al. (2002). Modelo fisico para la simulacion de ultrasonido Intravascular. XXXVIII Congreso Nacional de la Sociedad Española de Cardiologia..
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M. Gomez, J. Mauri, E. Fernandez-Nofrerias, Oriol Rodriguez-Leor, Carme Julia, Petia Radeva, et al. (2002). Nuevos Avances para la correlacion de imagenes angiograficas y de ecograia intracoronaria..
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David Rotger, Petia Radeva, E Fernandez-Nofrerias, & J. Mauri. (2002). Multimodal Registration of Intravascular Ultrasound Images and Angiography..
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David Rotger, Petia Radeva, J. Mauri, & E Fernandez-Nofrerias. (2002). Internal and External Coronary Vessel Images Registration..
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