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Author |
D. Lloret; Joan Serrat; Antonio Lopez; Juan J. Villanueva |
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Motion-induced error correction in ultrasound imaging. |
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2002 |
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1st. International Symposium on 3D Data Processing Visualization and Transmission 3DPTV. |
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ADAS @ adas @ LSL2002 |
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295 |
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David Vazquez; Antonio Lopez |
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Title |
Intrusion Classification in Intelligent Video Surveillance Systems |
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2008 |
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Estudis d'Enginyeria Superior en Informática |
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UAB |
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Human detection; Car detection; Intrusion detection |
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An intelligent video surveillance system (IVS) is a camera-based installation able to process in real-time the images coming from the cameras. The aim is to automatically warn about different events of interest at the moment they happen. Daview system of Davantis is a com mercial example of IVS system. The problems addressed by any IVS system, and so Daview, are so challenging that none IVS system is perfect, thus, they need continuous improvement. Accordingly, this project aims to study different approaches in order to outperform current Daview performance, in particular, we bet for improving its classification core. We present an in deep study of the state of the art on IVS systems, as well as on how Daview works. Based on that knowledge, we propose four possibilities for improving Daview classification capabilities: improve existent classifiers; improve existing classifiers combination; create new classifiers and create new classifier-based architectures. Our main contribution has been the incorporation of state-of-the-art feature selection and machine learning techniques for the classification tasks, a viewpoint not fully addressed in current Daview system. After a comprehensive quantitative evaluation we will see how one of our proposals clearly outperforms the overall performance of current Daview system. In particular the classification core that we finally propose consists in an AdaBoost One-Against-All architecture that uses appearance and motion features that were already present in current Daview system |
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Bellaterra, Spain |
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ADAS @ adas @ VL2008a |
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1670 |
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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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Joan Serrat; Antonio Lopez; D. Lloret |
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On ridges and valleys. |
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2000 |
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15 th International Conference on Pattern Recognition, 4:59–66. |
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Barcelona |
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ADAS @ adas @ SLL2000 d |
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334 |
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D. Lloret; Joan Serrat; Antonio Lopez; Juan J. Villanueva |
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Title |
Ultrasound to MR Volume Registration for Brain Sinking Measurement |
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2003 |
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In Pattern Recognition and Image Analysis, Lecture Notes in Computer Science, 2652:420–427 |
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Springer-Verlag |
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ADAS @ adas @ LSL2003a |
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384 |
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D. Lloret; Joan Serrat; Antonio Lopez; Juan J. Villanueva |
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Title |
Ultrasound to magnetic resonance volume registration for brain sinking measurement |
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2003 |
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1rst. Iberian Conference on Pattern Recognition and Image Analysis IbPRIA 2003 |
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Palma de Mallorca |
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ADAS @ adas @ LSL2003b |
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391 |
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Author |
J. Martinez; Eva Costa; P. Herreros; Antonio Lopez; Juan J. Villanueva |
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Title |
TV-Screen Quality Inspection by Artificial Vision |
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2003 |
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Proceedings of the Sixth International Conference on Quality Control by Artificial Vision (QCAV 2003) |
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A real-time vision system for TV screen quality inspection is introduced. The whole system consists of eight cameras and one processor per camera. It acquires and processes 112 images in 6 seconds. The defects to be inspected can be grouped into four main categories (bubble, line-out, line reduction and landing) although there exists a large variability among each particular type of defect. The complexity of the whole inspection process has been reduced by dividing images into smaller ones and grouping the defects into frequency and intensity relevant ones. Tools such as mathematical morphology, Fourier transform, profile analysis and classification have been used. The performance of the system has been successfully proved against human operators in normal production conditions. |
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Gatlinburg, (EEUU) |
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ADAS @ adas @ MCH2003a |
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393 |
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Author |
Angel Sappa; Niki Aifanti; Sotiris Malassiotis; Michael G. Strintzis |
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Title |
Monocular 3D Human Body Reconstruction Towards Depth Augmentation of Television Sequences |
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2003 |
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IEEE International Conference on Image Processing, Barcelona, Spain, September 2003 |
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325-328 |
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Barcelona |
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ADAS @ adas @ SAM2003 |
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418 |
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Angel Sappa; Niki Aifanti; N. Grammalidis; Sotiris Malassiotis |
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Title |
Advances in Vision-Based Human Body Modeling |
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2004 |
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3D Modeling & Animation: Systhesis and Analysis Techniques for the Human Body |
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1-26 |
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N. Sarris and M. Strintzis. |
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1-59140-299-9 |
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ADAS @ adas @ SAG2004a |
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458 |
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Angel Sappa; M.A. Garcia |
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Hierarchical Clustering of 3D Objects and its Application to Minimum Distance Computation |
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2004 |
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IEEE International Conference on Robotics & Automation, 5287–5292, New Orleans, LA (USA), ISBN: 0–7803–8232–3 |
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ADAS @ adas @ SaG2004b |
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459 |
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Antonio Lopez; Felipe Lumbreras; Joan Serrat; Juan J. Villanueva |
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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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A.F. Sole; Antonio Lopez; G. Sapiro |
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Crease Enhancement Diffusion |
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2001 |
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Computer Vision and Image Understanding, 84(2): 241–248 (IF: 1.298) |
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New York; USA |
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ADAS @ adas @ SLS2001 |
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485 |
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A. Pujol; Antonio Lopez; Jose Luis Alba; Juan J. Villanueva |
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Ridges, Valleys and Hausdorff Based Similarity Measures for Face Detection and Matching |
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2001 |
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Proceedings of the 1st International Workshop on Pattern Recognition in Information Systems (PRIS’2001), ICEIS Press, Ana Fred and Anil K. Jain (Eds), pgs.80–90 |
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ADAS @ adas @ PLA2001 |
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486 |
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D. Lloret; Antonio Lopez; Joan Serrat |
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Precise registration of CT and MR volumes based on a new creaseness measure |
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1998 |
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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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ADAS @ adas @ LLS1998d |
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Antonio Lopez |
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Ridge/Valley-like structures: Creases, separatrices and drainage patterns |
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1997 |
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Computer vision on–line |
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ADAS @ adas @ Lop1997 |
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