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Author |
Agata Lapedriza; David Masip; Jordi Vitria |
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Title |
On the Use of External Face Features for Identity Verification |
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2006 |
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Journal of Multimedia, 1(4): 11–20 |
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1 |
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4 |
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11-20 |
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Face Verification, Computer Vision, Machine Learning |
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Abstract |
In general automatic face classification applications images are captured in natural environments. In these cases, the performance is affected by variations in facial images related to illumination, pose, occlusion or expressions. Most of the existing face classification systems use only the internal features information, composed by eyes, nose and mouth, since they are more difficult to imitate. Nevertheless, nowadays a lot of applications not related to security are developed, and in these cases the information located at head, chin or ears zones (external features) can be useful to improve the current accuracies. However, the lack of a natural alignment in these areas makes difficult to extract these features applying classic Bottom-Up methods. In this paper, we propose a complete scheme based on a Top-Down reconstruction algorithm to extract external features of face images. To test our system we have performed face verification experiments using public databases, given that identity verification is a general task that has many real life applications. We have considered images uniformly illuminated, images with occlusions and images with high local changes in the illumination, and the obtained results show that the information contributed by the external features can be useful for verification purposes, specially significant when faces are partially occluded. |
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BCNPCL @ bcnpcl @ LMV2006b |
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708 |
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Bogdan Raducanu; Jordi Vitria |
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Title |
Aprendiendo a Aprender: de Maquinas Listas a Maquinas Inteligentes |
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2006 |
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Campus Multidisciplinario en Percepcion e Inteligencia (Antionio Fernandez–Caballero et al., eds.), 1: 34–45 |
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Albacete (Spain) |
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BCNPCL @ bcnpcl @ RaV2006b |
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714 |
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Bogdan Raducanu; Jordi Vitria |
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Title |
A Robust Particle Filter-Based Face Tracker Using Combination of Color and Geometric Information |
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2006 |
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International Conference on Image Analysis and Recognition (ICIAR´06), LNCS 4141 (A. Campilho et al., eds.), 1: 922–933 |
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BCNPCL @ bcnpcl @ RaV2006c |
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715 |
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Fadi Dornaika; Bogdan Raducanu |
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Title |
Efficient Facial Expression Recognition for Human Robot Interaction |
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2007 |
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Computational and Ambient Intelligence, 9th International Work–Conference on Artificial Neural Networks |
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4507 |
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700–708 |
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IWANN |
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OR;MV |
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BCNPCL @ bcnpcl @ DoR2007a |
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792 |
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Author |
Matthias S. Keil; Jordi Vitria |
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Title |
Pushing it to the Limit: Adaptation with Dynamically Switching Gain Control |
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2007 |
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EURASIP Journal on Advances in Signal Processing, Vol 2007, Article ID 51684, 10 pages, doi: 10.1155/2007/51684 |
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BCNPCL @ bcnpcl @ KeV2007 |
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794 |
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Author |
Fadi Dornaika; Bogdan Raducanu |
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Title |
Recognizing Facial Expressions in Videos Using a Facial Action Analysis-Synthesis Scheme |
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2006 |
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International Conference on Advanced Video and Signal Based Surveillance, (AVSS 2006), ISBN: 0–7695–2688–8 |
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Sydney (Australia) |
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OR;MV |
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BCNPCL @ bcnpcl @ DoR2006 |
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799 |
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Author |
Bogdan Raducanu; Jordi Vitria |
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Title |
Incremental Subspace Learning for Cognitive Visual Processes |
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2007 |
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Advances in Brain, Vision and Artificial Intelligence, 2nd International Symposium |
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4729 |
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214–223 |
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Naples (Italy) |
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BVAI’07 |
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BCNPCL @ bcnpcl @ RaV2007b |
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901 |
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Author |
Fadi Dornaika; Bogdan Raducanu |
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Title |
Inferring Facial Expressions from Videos: Tool and Application |
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2007 |
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Signal Processing: Image Communication, vol. 22(9):769–784 |
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BCNPCL @ bcnpcl @ DoR2007b |
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918 |
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Author |
David Masip; Agata Lapedriza; Jordi Vitria |
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Title |
Measuring External Face Appearance for Face Classification. |
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2007 |
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Face Recognition, Ed. Kresimir Delac and Mislav Grgic, pp. 287–307, ISBN 978–3–902613–03–5, I–Tech Education and Publishing |
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Vienna (Austria) |
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OR;MV |
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BCNPCL @ bcnpcl @ MLV2007b |
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940 |
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Author |
David Masip; Jordi Vitria |
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Title |
Shared Feature Extraction for Nearest Neighbor Face Recognition |
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2008 |
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IEEE Transactions on Neural Networks |
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19 |
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4 |
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586–595 |
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BCNPCL @ bcnpcl @ MaV2008 |
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944 |
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Author |
Bogdan Raducanu; Jordi Vitria |
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Title |
Learning to Learn: From Smarts Machines to Intelligent Machines |
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2008 |
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Patter Recognition Letters |
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PRL |
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29 |
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8 |
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1024–1032 |
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BCNPCL @ bcnpcl @ RaV2008a |
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950 |
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Author |
Matthias S. Keil; Agata Lapedriza; David Masip; Jordi Vitria |
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Title |
Preferred Spatial Frequencies for Human Face Processing Are Associated with Optimal Class Discrimination in the Machine |
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2008 |
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PLoS ONE 3(7):e2590, DOI:10.1371/journal.pone.0002590 |
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BCNPCL @ bcnpcl @ KLM2008 |
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978 |
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Author |
Fadi Dornaika; Bogdan Raducanu |
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Title |
Detecting and Tracking of 3D Face Pose for Human-Robot Interaction |
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2008 |
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IEEE International Conference on Robotics and Automation, |
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1716–1721 |
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Pasadena; CA; USA |
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ICRA |
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BCNPCL @ bcnpcl @ DoR2008a |
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982 |
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Author |
Fadi Dornaika; Bogdan Raducanu |
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Title |
Constructing Panoramic Views Through Facial Gaze Tracking |
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2008 |
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IEEE International Conference on Multimedia and Expo, |
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969–972 |
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Hannover (Germany) |
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ICME |
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BCNPCL @ bcnpcl @ DoR2008b |
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983 |
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Agata Lapedriza; Santiago Segui; David Masip; Jordi Vitria |
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A Sparse Bayesian Approach for Joint Feature Selection and Classifier Learning |
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2008 |
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Pattern Analysis and Applications, Special Issue: Non–Parametric Distance–Based Classification Techniques and Their Applications, |
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11 |
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3-4 |
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299-308 |
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BCNPCL @ bcnpcl @ LSM2008 |
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996 |
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