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| Author |
Antonio Lopez; David Lloret; Joan Serrat; Juan J. Villanueva |
| Title |
Multilocal Creaseness Based on the Level-Set Extrinsic Curvarture. |
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Miscellaneous |
| Year |
2000 |
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Computer Vision and Image Understanding, Academic Press, 77(2):111–144. |
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ADAS @ adas @ LLS 2000 b |
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172 |
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| Author |
David Lloret; Antonio Lopez; Joan Serrat |
| Title |
Rigid Registration of CT and MR volumes based on Rothes creases |
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Miscellaneous |
| Year |
1997 |
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(SNRFAI’97) 7th Spanish National Symposium on Pattern Recognition and Image Analysis. Eds.CVC,pgs.1–6 |
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Barcelona (Spain) |
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ADAS @ adas @ LLS1997 |
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490 |
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| Author |
Antonio Lopez; Felipe Lumbreras; Joan Serrat |
| Title |
Efficient computation of local creaseness |
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Report |
| Year |
1997 |
Publication |
CVC Technical Report |
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15 |
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CVC, Bellaterra (Spain) |
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ADAS @ adas @ LLS1997b |
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527 |
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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 @ 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 @ adas @ LLS1998b |
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12 |
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| Author |
David Lloret; Antonio Lopez; Joan Serrat |
| Title |
3-D image Processing and Modeling, workshop on non-linear model-based image analysis. |
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Miscellaneous |
| Year |
1998 |
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NMBIA |
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Glasgow, U.K. |
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ADAS @ adas @ LLS1998c |
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15 |
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| Author |
David Lloret; Antonio Lopez; Joan Serrat |
| Title |
Precise registration of CT and MR volumes based on a new creaseness measure |
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Miscellaneous |
| Year |
1998 |
Publication |
Workshop on Non–linear model–based image analysis (NMBIA’98). S. Marshall, N. Harvey and D. Shah Eds. Springer_Verlag London, pgs 15–20 |
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Glasgow (Scottland) |
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ADAS @ adas @ LLS1998d |
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487 |
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| Author |
David Lloret; Joan Serrat |
| Title |
System for calibration of a stereotatic frame. |
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Miscellaneous |
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1999 |
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Proceeding of the VIII Symposium Nacional de Reconocimiento de Formas y Analisis de Imagenes |
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Bilbao |
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ADAS @ adas @ LlS1999 |
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20 |
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David Lloret; Antonio Lopez; Joan Serrat; Juan J. Villanueva |
| Title |
Creaseness-based computer tomography and magnetic resonance registration: Comparison with the mutual information method. |
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Miscellaneous |
| Year |
1999 |
Publication |
Journal of Electronic Imaging, 8(3):255–262 |
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This paper describes a method which uses the skull as a landmark for automatic registration of computer tomography to magnetic resonance (MR) images. First, the skull is extracted from both images using a new creaseness operator. Then, the resulting creaseness images are used to build a hierarchic structure which permits a robust and fast search. We have justified experimentally the performance of several choices of our algorithm, and we have thoroughly tested its accuracy and robustness against the well-known mutual information method for five different pairs of images. We have found both comparable, and for certain MR images the proposed method achieves better performance. |
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ADAS @ adas @ LLS1999a |
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189 |
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Antonio Lopez; Felipe Lumbreras; Joan Serrat; Juan J. Villanueva |
| Title |
Evaluation of Methods for Ridge and Valley Detection |
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1999 |
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IEEE Transactions on Pattern Analysis and Machine Intelligence (PAMI), 21:327–335 |
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ADAS @ adas @ LLS1999b |
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483 |
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| Author |
Josep Llados; Felipe Lumbreras; Javier Varona |
| Title |
A multidocument platform for automatic reading of identity cards. |
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Miscellaneous |
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1999 |
Publication |
Proceedings of the VIII Symposium Nacional de Reconocimiento de Formas y Analisis de Imagenes. |
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ADAS;DAG |
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ADAS @ adas @ LLV1999 |
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7 |
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David Lloret; C. Mariño; Joan Serrat; Antonio Lopez; Juan J. Villanueva |
| Title |
Landmark-based registration of full SLO video sequences. |
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2001 |
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Proceedings of the IX Spanish Symposium on Pattern Recognition and Image Analysis,1:189–194. |
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ADAS @ adas @ LMS2001 |
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116 |
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Antonio Lopez; W. Niessen; Joan Serrat; K. Nicolay; Bart M. Ter Haar Romeny; Juan J. Villanueva; M. Viergever |
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New improvements in the multiscale analysis of trabecular bone patterns. |
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1999 |
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Proceedings of the VIII Symposium Nacional de Reconocimiento de Formas y Analisis de Imagenes (SNRFAI’99), pags. 497–504 |
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ADAS @ adas @ LNS1999 |
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17 |
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Antonio Lopez; W. Niessen; Joan Serrat; K. Nicolay; Bart M. Ter Haar Romeny; Juan J. Villanueva; M. Viergever |
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New improvements in the multiscale analysis of trabecular bone patterns. |
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2000 |
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Pattern Recognition and Applications, IOS Press, 251–260. |
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ADAS @ adas @ LNS2000 |
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332 |
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| Author |
Antonio Lopez |
| Title |
Ridge/Valley-like structures: Creases, separatrices and drainage patterns |
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Miscellaneous |
| Year |
1997 |
Publication |
Computer vision on–line |
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CVC |
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ADAS @ adas @ Lop1997 |
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488 |
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