| Records |
| Author |
Cristina Cañero; Petia Radeva; Oriol Pujol; Ricardo Toledo; Debora Gil; J. Saludes; Juan J. Villanueva; B. Garcia del Blanco; J. Mauri; Eduard Fernandez-Nofrerias; J.A. Gomez-Hospital; E. Iraculis; J. Comin; C. Quiles; F. Jara; A. Cequier; E.Esplugas |
| Title |
Three-dimensional reconstruction and quantification of the coronary tree using intravascular ultrasound images |
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Conference Article |
Year  |
1999 |
Publication |
Proceedings of International Conference on Computer in Cardiology (CIC´99) |
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In this paper we propose a new Computer Vision technique to reconstruct the vascular wall in space using a deformable model-based technique and compounding methods, based in biplane angiography and intravascular ultrasound data jicsion. It is also proposed a generalpurpose three-dimensional guided interpolation method. The three dimensional centerline of the vessel is reconstructed from geometrically corrected biplane angiographies using automatic segmentation methods and snakes. The IVUS image planes are located in the threedimensional space and correctly oriented. A led interpolation method based in B-SurJaces and snakes isused to fill the gaps among image planes |
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CINC99 |
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MILAB;RV;IAM;ADAS;HuPBA |
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| Call Number |
IAM @ iam @ CRP1999b |
Serial |
1492 |
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| Author |
Josep Llados; Enric Marti |
| Title |
A graph-edit algorithm for hand-drawn graphical document recognition and their automatic introduction into CAD systems |
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Journal Article |
| Year |
1999 |
Publication |
Machine Graphics & Vision |
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8 |
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195-211 |
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DAG;IAM; |
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IAM @ iam @ LIM1999 |
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1568 |
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| Author |
Josep Llados; Enric Marti |
| Title |
Graph-edit algorithms for hand-drawn graphical document recognition and their automatic introduction |
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Journal Article |
| Year |
1999 |
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Machine Graphics & Vision journal, special issue on Graph transformation |
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DAG;IAM |
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IAM @ iam @ LIM1999c |
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1569 |
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| Author |
Josep Llados; Enric Marti; Jaime Lopez-Krahe |
| Title |
A Hough-based method for hatched pattern detection in maps and diagrams |
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Conference Article |
| Year |
1999 |
Publication |
Proceeding of the Fifth Int. Conf. Document Analysis and Recognition ICDAR ’99 |
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479-482 |
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A hatched area is characterized by a set of parallel straight lines placed at regular intervals. In this paper, a Hough-based schema is introduced to recognize hatched areas in technical documents from attributed graph structures representing the document once it has been vectorized. Defining a Hough-based transform from a graph instead of the raster image allows to drastically reduce the processing time and, second, to obtain more reliable results because straight lines have already been detected in the vectorization step. A second advantage of the proposed method is that no assumptions must be made a priori about the slope and frequency of hatching patterns, but they are computed in run time for each hatched area. |
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DAG;IAM; |
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IAM @ iam @ LIM1999b |
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1580 |
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| Author |
Ernest Valveny; Enric Marti |
| Title |
Application of deformable template matching to symbol recognition in hand-written architectural draw |
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Conference Article |
| Year |
1999 |
Publication |
Proceedings of the Fifth International Conference on |
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We propose to use deformable template matching as a new approach to recognize characters and lineal symbols in hand-written line drawings, instead of traditional methods based on vectorization and feature extraction. Bayesian formulation of the deformable template matching allows combining fidelity to the ideal shape of the symbol with maximum flexibility to get the best fit to the input image. Lineal nature of symbols can be exploited to define a suitable representation of models and the set of deformations to be applied to them. Matching, however, is done over the original binary image to avoid losing relevant features during vectorization. We have applied this method to hand-written architectural drawings and experimental results demonstrate that symbols with high distortions from ideal shape can be accurately identified. |
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Bangalore (India) |
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DAG;IAM; |
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IAM @ iam @ VAM1999a |
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1657 |
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| Author |
Ernest Valveny; Enric Marti |
| Title |
Recognition of lineal symbols in hand-written drawings using deformable template matching |
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Conference Article |
| Year |
1999 |
Publication |
Proceedings of the VIII Symposium Nacional de Reconocimiento de Formas y Análisis de Imágenes |
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DAG;IAM; |
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IAM @ iam @ VAM1999 |
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1658 |
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| Author |
A. Martinez; Jordi Vitria |
| Title |
Learning mixture models with the EM algorithm and genetic algorithms |
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Report |
| Year |
1998 |
Publication |
CVC Technical Report #23 |
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CVC (UAB) |
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OR;MV |
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BCNPCL @ bcnpcl @ MaV1998a |
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8 |
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| Author |
Antonio Lopez; David Lloret; Joan Serrat |
| Title |
Creaseness measures for CT and MR image registration. |
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Miscellaneous |
| Year |
1998 |
Publication |
CVPR’98 , IEEE Computer Society, pgs.694–699 |
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Creases are a type of ridge/valley structures that can be characterized by local conditions. Therefore, creaseness refers to local ridgeness and valleyness. The curvature K of the level curves and the mean curvature kM of the level surfaces are good measures of creaseness for 2-d and 3-d images, respectively. However, the way they are computed gives rise to discontinuities, reducing their usefulness in many applications. We propose a new creaseness measure, based on these curvatures, that avoids the discontinuities. We demonstrate its usefulness in the registration of CT and MR brain volumes, from the same patient, by searching the maximum in the correlation of their creaseness responses (ridgeness from the CT and valleyness from the MR). Due to the high dimensionality of the space of transforms, the search is performed by a hierarchical approach combined with an optimization method at each level of the hierarchy |
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Santa Barbara, USA. |
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ADAS |
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ADAS @ adas @ LLS1998a |
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11 |
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| Author |
Antonio Lopez; Felipe Lumbreras; Joan Serrat |
| Title |
Creaseness form level set extrinsec curvature. |
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Miscellaneous |
| Year |
1998 |
Publication |
5th European Conference on Computer Vision (ECCV’98), Lecture Notes in Computer Science,vol 1407, pgs. 156–169 |
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Freiburg, Germany. |
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ADAS |
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ADAS @ adas @ LLS1998b |
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12 |
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David Lloret; Antonio Lopez; Joan Serrat |
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3-D image Processing and Modeling, workshop on non-linear model-based image analysis. |
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Miscellaneous |
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1998 |
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NMBIA |
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Glasgow, U.K. |
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ADAS |
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ADAS @ adas @ LLS1998c |
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15 |
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Xavier Roca; X. Binefa; Jordi Vitria |
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A New Autofocus Algorithm for Cytological Tissue in a Microscopy Environment. |
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1998 |
Publication |
Optical Engineering. |
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OR;ISE;MV |
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BCNPCL @ bcnpcl @ RBV1998 |
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16 |
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Petia Radeva; J. Guerrero; C. Molina |
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A Physics-Based Kohonen Ring. |
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1998 |
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SPIE – Medical Imaging. |
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San Diego; CA; USA |
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MILAB |
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BCNPCL @ bcnpcl @ RGM1998 |
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19 |
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C. Molina; G.P. Prause; Petia Radeva; M. Sonka |
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Catheter Path Reconstruction from Biplane Angiography using 3D Snakes. |
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1998 |
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SPIE – Medical imaging. |
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San Diego; CA; USA |
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MILAB |
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BCNPCL @ bcnpcl @ MPR1998 |
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22 |
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Petia Radeva; A.F. Sole; Antonio Lopez; Joan Serrat |
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Detecting Nets of Linear Structures in Satellite Images. |
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1998 |
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Londres |
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ADAS;MILAB |
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ADAS @ adas @ RSL1998 |
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25 |
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X. Binefa; Petia Radeva; J.A. Cortijo; J. Garcia |
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Contour detection and color influence in defocused environtments. |
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Miscellaneous |
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1998 |
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MILAB |
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BCNPCL @ bcnpcl @ BRC1998 |
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28 |
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