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Pedro Martins; Paulo Carvalho; Carlo Gatta |
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On the completeness of feature-driven maximally stable extremal regions |
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2016 |
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Pattern Recognition Letters |
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PRL |
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74 |
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9-16 |
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Local features; Completeness; Maximally Stable Extremal Regions |
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By definition, local image features provide a compact representation of the image in which most of the image information is preserved. This capability offered by local features has been overlooked, despite being relevant in many application scenarios. In this paper, we analyze and discuss the performance of feature-driven Maximally Stable Extremal Regions (MSER) in terms of the coverage of informative image parts (completeness). This type of features results from an MSER extraction on saliency maps in which features related to objects boundaries or even symmetry axes are highlighted. These maps are intended to be suitable domains for MSER detection, allowing this detector to provide a better coverage of informative image parts. Our experimental results, which were based on a large-scale evaluation, show that feature-driven MSER have relatively high completeness values and provide more complete sets than a traditional MSER detection even when sets of similar cardinality are considered. |
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Elsevier B.V. |
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0167-8655 |
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LAMP;MILAB; |
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Admin @ si @ MCG2016 |
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2748 |
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Author |
J. Mauri; E Fernandez-Nofrerias; A. Tovar; E. Martinez; L. Cano; V. Valle; David Rotger; Cristina Cañero; Petia Radeva |
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Ecografia Intracoronaria: Un Nou Pas, la Fusio de Imatges amb la Angiografia, el Software. |
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2001 |
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Revista de la Societat Catalana de Cardiologia, XIIIe Congres de la Societat Catalana de Cardiologia, 4(1):48. |
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MILAB |
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BCNPCL @ bcnpcl @ MFT2001 |
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136 |
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Author |
Amir A.Amini; Yasheng Chen; Mohamed Elayyadi; Petia Radeva |
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Title |
Tag Surface Reconstruction and Tracking of Myocardial Beads from SPAMM-MRI with Parametric B-Spline Surfaces |
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2001 |
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IEEE Transactions on Medical Imaging |
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TMI |
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20 |
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2 |
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94–103 |
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B-spline surfaces, cardiac motion, myocardial beads, myocardial infarction, tagged MRI. |
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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. |
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BCNPCL @ bcnpcl @ ACE2001; IAM @ iam @ ACE2001 |
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180 |
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Author |
V. Valev; B. Sankur; Petia Radeva |
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Generalized Non Reducible Descriptors. |
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2000 |
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15 th International Conference on Pattern Recognition, 2: 394–397. |
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Barcelona. |
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BCNPCL @ bcnpcl @ VSR2000 |
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230 |
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M.Gomez; J.Mauri; E.Fernandez-Nofrerias; O.Rodriguez-Leor; ; C.Julia; David Rotger; Petia Radeva; V.Valle |
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Una nova aplicacio informatica per a la correlacio d imatges angiografiques i d ecografia intracoronaria. |
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2002 |
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Revista de la Societat Catalana de Cardiologia, 4(4): 42, XIV Congres de la Societat Catalana de Cardiologia. |
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Barcelona, Espanya |
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BCNPCL @ bcnpcl @ GMF2002a |
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307 |
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