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| Author |
Debora Gil; Petia Radeva |
| Title |
A Regularized Curvature Flow Designed for a Selective Shape Restoration |
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Journal Article |
| Year |
2004 |
Publication |
IEEE Transactions on Image Processing |
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| Volume |
13 |
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1444–1458 |
| Keywords |
Geometric flows, nonlinear filtering, shape recovery. |
| Abstract |
Among all filtering techniques, those based exclu- sively on image level sets (geometric flows) have proven to be the less sensitive to the nature of noise and the most contrast preserving. A common feature to existent curvature flows is that they penalize high curvature, regardless of the curve regularity. This constitutes a major drawback since curvature extreme values are standard descriptors of the contour geometry. We argue that an operator designed with shape recovery purposes should include a term penalizing irregularity in the curvature rather than its magnitude. To this purpose, we present a novel geometric flow that includes a function that measures the degree of local irregularity present in the curve. A main advantage is that it achieves non-trivial steady states representing a smooth model of level curves in a noisy image. Performance of our approach is compared to classical filtering techniques in terms of quality in the restored image/shape and asymptotic behavior. We empirically prove that our approach is the technique that achieves the best compromise between image quality and evolution stabilization. |
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IAM;MILAB |
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BCNPCL @ bcnpcl @ GiR2004b |
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491 |
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| Author |
Jordi Gonzalez; J. Varona; Xavier Roca; Juan J. Villanueva |
| Title |
Analysis of Human Walking Based on aSpaces |
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Miscellaneous |
| Year |
2004 |
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Articulated Motion and Deformable Objects, Third International Workshop, (AMDO 2004), Lecture Notes in Computer Science, F.J. Perales, B.A. Draper (Eds.), 3179:177–188 |
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Springer-Verlag, Berlin, Heidelberg |
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ISE @ ise @ GVR2004a |
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492 |
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| Author |
Angel Sappa; Niki Aifanti; Sotiris Malassiotis; Michael G. Strintzis |
| Title |
3D Human Walking Modelling |
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| Year |
2004 |
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Articulated Motion and Deformable Objects, Third International Workshop, (AMDO 2004), Lecture Notes in Computer Science, F.J. Perales, B.A. Draper (Eds.), 3179:111–122 |
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Springer-Verlag, Berlin, Heidelberg |
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ADAS @ adas @ SAM2004b |
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494 |
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| Author |
Angel Sappa; Niki Aifanti; Sotiris Malassiotis; Michael G. Strintzis |
| Title |
3D Gait Estimation from Monoscopic Video |
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2004 |
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IEEE International Conference on Image Processing |
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Singapore |
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ADAS |
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ADAS @ adas @ SAM2004c |
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495 |
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| Author |
Niki Aifanti; Angel Sappa; N. Grammalidis; Sotiris Malassiotis |
| Title |
Human Motion Tracking and Recognition |
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2005 |
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Encyclopedia of Information Science and Technology, 1(5):1355–1360 |
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ADAS @ adas @ ASG2005 |
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496 |
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Angel Sappa; Niki Aifanti; Sotiris Malassiotis; N. Grammalidis |
| Title |
Survey of 3D Human Body Representations |
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2005 |
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Encyclopedia of Information Science and Technology, 1(5):2696–2701 |
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ADAS @ adas @ SAM2005a |
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497 |
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| Author |
Jordi Gonzalez; J. Varona; Xavier Roca; Juan J. Villanueva |
| Title |
Situation Graph Trees for Human Behavior Modeling |
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Miscellaneous |
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2004 |
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7th Catalan Conference for Artificial Intelligence (CCIA’2004) |
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Barcelona (Spain) |
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ISE |
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no |
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ISE @ ise @ GVR2004b |
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498 |
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| Author |
Zhong Jin; Franck Davoine |
| Title |
Orthogonal ICA Representation Of Images |
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Miscellaneous |
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2004 |
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8th International Conference on Control, Automation, Robotics and Vision, 369–374 |
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Kunming (China) |
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Admin @ si @ JiD2004 |
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499 |
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| Author |
Oriol Ramos Terrades; Salvatore Tabbone; L. Wendling; Ernest Valveny |
| Title |
Symbol Recognition based on a Multiresolution Analysis of the Radon Transform |
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Miscellaneous |
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2004 |
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The International Workshop on Multidisciplinary Image, Video, and Audio Retrieval and Mining |
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Sherbrooke (Canada) |
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DAG |
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DAG @ dag @ RTW2004 |
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500 |
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| Author |
Ernest Valveny; Philippe Dosch |
| Title |
Symbol Recognition Contest: A Synthesis |
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Miscellaneous |
| Year |
2004 |
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Graphics Recognition: Recent Advances and Perspectives, J. Llados, Y.B. Kwon (Eds.), Lecture Notes in Computer Science, 3088:368–386, ISBN: 3–540–22478–5 |
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DAG @ dag @ VaD2004b |
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501 |
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| Author |
Ernest Valveny; Philippe Dosch |
| Title |
Performance Evaluation of Symbol Recognition |
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2004 |
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Document Analysis Systems |
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LNCS |
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3163 |
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354–365 |
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Springer-Verlag |
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S. Marinai, A. Dengel (Eds.), |
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3-540-23060-2 |
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DAG @ dag @ VaD2004a |
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502 |
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Oriol Ramos Terrades; Ernest Valveny |
| Title |
Indexing Technical Symbols Using Ridgelets Transform |
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2004 |
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Graphics Recognition: Recent Advances and Perspectives, J. Llados, Y.B. Kwon (Eds.), Lecture Notes in Computer Science, 3088:177–187, ISBN: 3–540–22478–5 |
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| Author |
Carme Julia |
| Title |
Motion segmentation through factorization. Application to night driving assistance |
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2004 |
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CVC Technical Report #79 |
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Admin @ si @ 38169 |
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506 |
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| Author |
Raul Chaves |
| Title |
Sistema de identificacion mediante huellas dactilares |
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2004 |
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CVC Technical Report #81 |
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Admin @ si @ Cha2004 |
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507 |
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| Author |
Oriol Martinez |
| Title |
Semantic Retrieval of Memory Color Content |
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2004 |
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CVC Technical Report #80 |
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Admin @ si @ 38047 |
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508 |
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