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Author |
Fadi Dornaika; Bogdan Raducanu |
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Title |
Person-specific face shape estimation under varying head pose from single snapshots |
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Conference Article |
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2010 |
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20th International Conference on Pattern Recognition |
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3496–3499 |
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This paper presents a new method for person-specific face shape estimation under varying head pose of a previously unseen person from a single image. We describe a featureless approach based on a deformable 3D model and a learned face subspace. The proposed approach is based on maximizing a likelihood measure associated with a learned face subspace, which is carried out by a stochastic and genetic optimizer. We conducted the experiments on a subset of Honda Video Database showing the feasibility and robustness of the proposed approach. For this reason, our approach could lend itself nicely to complex frameworks involving 3D face tracking and face gesture recognition in monocular videos. |
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Istanbul, Turkey |
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1051-4651 |
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978-1-4244-7542-1 |
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ICPR |
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BCNPCL @ bcnpcl @ DoR2010b |
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1361 |
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Author |
Cesar Isaza; Joaquin Salas; Bogdan Raducanu |
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Title |
Toward the Detection of Urban Infrastructures Edge Shadows |
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Conference Article |
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2010 |
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12th International Conference on Advanced Concepts for Intelligent Vision Systems |
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6474 |
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I |
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30–37 |
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In this paper, we propose a novel technique to detect the shadows cast by urban infrastructure, such as buildings, billboards, and traffic signs, using a sequence of images taken from a fixed camera. In our approach, we compute two different background models in parallel: one for the edges and one for the reflected light intensity. An algorithm is proposed to train the system to distinguish between moving edges in general and edges that belong to static objects, creating an edge background model. Then, during operation, a background intensity model allow us to separate between moving and static objects. Those edges included in the moving objects and those that belong to the edge background model are subtracted from the current image edges. The remaining edges are the ones cast by urban infrastructure. Our method is tested on a typical crossroad scene and the results show that the approach is sound and promising. |
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Sydney, Australia |
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Springer Berlin Heidelberg |
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eds. Blanc–Talon et al |
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0302-9743 |
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978-3-642-17687-6 |
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BCNPCL @ bcnpcl @ ISR2010 |
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1458 |
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Author |
Joan Arnedo-Moreno; Agata Lapedriza |
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Title |
Visualizing key authenticity: turning your face into your public key |
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Conference Article |
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2010 |
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6th China International Conference on Information Security and Cryptology |
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605-618 |
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Biometric information has become a technology complementary to cryptography, allowing to conveniently manage cryptographic data. Two important needs are ful lled: rst of all, making such data always readily available, and additionally, making its legitimate owner easily identi able. In this work we propose a signature system which integrates face recognition biometrics with and identity-based signature scheme, so the user's face e ectively becomes his public key and system ID. Thus, other users may verify messages using photos of the claimed sender, providing a reasonable trade-o between system security and usability, as well as a much more straightforward public key authenticity and distribution process. |
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Admin @ si @ ArL2010c |
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2149 |
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Author |
David Geronimo; Antonio Lopez |
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Title |
Deteccion de Peatones para Sistemas Avanzados de Asistencia al Conductor |
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Miscellaneous |
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Year |
2010 |
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UAB Divulga |
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Los sistemas de asistencia al conductor, y particularmente los sistemas de protección de peatones, representan uno de los campos de investigación más activos dedicados a la mejora de la seguridad vial. El mayor desafío es el desarrollo de sistemas a bordo fiables de detección de peatones. En esta revisión del estado de la técnica de la detección de peatones, se divide el problema en diferentes etapas, cada una con responsabilidades propias dentro del sistema. Esta división facilita el posterior análisis y discusión de cada uno de los métodos en la literatura, favoreciendo la comparación entre ellos. Finalmente se discuten los temas más importantes de este campo poniendo especial énfasis en las necesidades actuales y los desafíos futuros. |
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Bellaterra (Catalonia), Spain |
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spreading;ADAS |
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ADAS @ adas @ GeL2010a |
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1414 |
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Author |
David Geronimo; Antonio Lopez |
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Title |
Sistema de deteccion de peatones |
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Miscellaneous |
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Year |
2010 |
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UAB Divulga |
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Durante la próxima década, los sistemas de protección de peatones jugarán un papel fundamental en el reto de mejorar la seguridad viaria. El objetivo principal de estos sistemas, detectar peatones en entornos urbanos, implica procesar imágenes de escenas exteriores desde una plataforma móvil para buscar objetos de aspecto variable como son las personas. Dadas estas dificultades, estos sistemas hacen uso de las últimas técnicas de visión por computador. Esta propuesta consiste en un sistema de tres módulos basado tanto en información 2D como en 3D. El primer módulo utiliza información 3D para hacer una estimación de los parámetros de la carretera y seleccionar regiones de interés que serán analizadas después. El segundo módulo utiliza un clasificador de ventanas 2D para etiquetar las mencionadas regiones como peatón o no peatón. El módulo final vuelve a utilizar de nuevo la información 3D para verificar las regiones clasificadas y, con información 2D, refinar los resultados finales. Los resultados experimentales son positivos tanto en rendimiento como en tiempo de cómputo. |
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Bellaterra (Spain) |
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spreading;ADAS |
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ADAS @ adas @ GeL2010b |
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1473 |
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