| Records |
| Author |
Angel Sappa; Fadi Dornaika; David Geronimo; Antonio Lopez |
| Title |
Registration-based Moving Object Detection from a Moving Camera |
Type |
Conference Article |
| Year |
2008 |
Publication |
IROS2008 2nd Workshop on Perception, Planning and Navigation for Intelligent Vehicles |
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| Volume |
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Pages |
65–69 |
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| Abstract |
This paper presents a robust approach for detecting moving objects from on-board stereo vision systems. It relies on a feature point quaternion-based registration, which avoids common problems that appear when computationally expensive iterative-based algorithms are used on dynamic environments. The proposed approach consists of three stages. Initially, feature points are extracted and tracked through consecutive frames. Then, a RANSAC based approach is used for registering
two 3D point sets with known correspondences by means of the quaternion method. Finally, the computed 3D rigid displacement is used to map two consecutive frames into the same coordinate system. Moving objects correspond to those areas with large registration errors. Experimental results, in different scenarios, show the viability of the proposed approach. |
| Address |
Nice (France) |
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ADAS |
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no |
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ADAS @ adas @ SDG2008 |
Serial |
1017 |
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| Author |
Fadi Dornaika; Angel Sappa |
| Title |
Evaluation of an Appearance-based 3D Face Tracker using Dense 3D Data |
Type |
Journal |
| Year |
2008 |
Publication |
Machine Vision and Applications |
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| Volume |
19 |
Issue |
5-6 |
Pages |
427–441 |
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ADAS |
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no |
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ADAS @ adas @ DoS2008b |
Serial |
1018 |
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| Author |
Ignasi Rius; Jordi Gonzalez; Mikhail Mozerov; Xavier Roca |
| Title |
Automatic Learning of 3D Pose Variability in Walking Performances for Gait Analysis |
Type |
Journal |
| Year |
2008 |
Publication |
International Journal for Computational Vision and Biomechanics |
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| Volume |
1 |
Issue |
1 |
Pages |
33–43 |
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ISE |
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no |
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ISE @ ise @ RGM2008 |
Serial |
1020 |
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| Author |
Carles Fernandez; Xavier Roca; Jordi Gonzalez |
| Title |
Providing Automatic Multilingual Text Generation to Artificial Cognitive Systems |
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2008 |
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ISE |
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no |
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ISE @ ise @ FRG2008 |
Serial |
1021 |
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| Author |
X. Varona; Antoni Jaume-i-Capo; Jordi Gonzalez; Francisco Jose Perales |
| Title |
Toward Natural Interaction through Visual Recognition of Body Gestures in Real-Time |
Type |
Journal |
| Year |
2008 |
Publication |
Interacting with Computers, diu 10,1016/j.intcom.2008.10.001, available on line |
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no |
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ISE @ ise @ VJG2008 |
Serial |
1022 |
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| Author |
Agata Lapedriza; Jaume Garcia; Ernest Valveny; Robert Benavente; Miquel Ferrer; Gemma Sanchez |
| Title |
Una experiencia de aprenentatge basada en projectes en el ambit de la informatica |
Type |
Miscellaneous |
| Year |
2008 |
Publication |
V Jornades d’Innovacio Docent (UAB) |
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63 |
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Bellaterra (Spain) |
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OR; IAM; DAG; CIC; MV |
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no |
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BCNPCL @ bcnpcl @ LGV2008 |
Serial |
1030 |
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| Author |
Robert Benavente; Ernest Valveny; Jaume Garcia; Agata Lapedriza; Miquel Ferrer; Gemma Sanchez |
| Title |
Una experiencia de adaptacion al EEES de las asignaturas de programacion en Ingenieria Informatica |
Type |
Miscellaneous |
| Year |
2008 |
Publication |
V Congreso Iberoamericano de Docencia Universitaria, pp. 213–216 |
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Valencia |
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OR;DAG;CIC;MV |
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no |
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BCNPCL @ bcnpcl @ BVG2008 |
Serial |
1031 |
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| Author |
Jaume Garcia; Debora Gil; Sandra Pujades; Francesc Carreras |
| Title |
Valoracion de la Funcion del Ventriculo Izquierdo mediante Modelos Regionales Hiperparametricos |
Type |
Journal Article |
| Year |
2008 |
Publication |
Revista Española de Cardiologia |
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| Volume |
61 |
Issue |
3 |
Pages |
79 |
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| Abstract |
La mayoría de la enfermedades cardiovasculares afectan a las propiedades contráctiles de la banda ventricular helicoidal. Esto se refleja en una variación del comportamiento normal de la función ventricular. Parámetros locales tales como los strains, o la deformación experimentada por el tejido, son indicadores capaces de detectar anomalías funcionales en territorios específicos. A menudo, dichos parámetros son considerados de forma separada. En este trabajo presentamos un marco computacional (el Dominio Paramétrico Normalizado, DPN) que permite integrarlos en hiperparámetros funcionales y estudiar sus rangos de normalidad. Dichos rangos permiten valorar de forma objetiva la función regional de cualquier nuevo paciente. Para ello, consideramos secuencias de resonancia magnética etiquetada a nivel basal, medio y apical. Los hiperparámetros se obtienen a partir del movimiento intramural del VI estimado mediante el método Harmonic Phase Flow. El DPN se define a partir de en una parametrización del Ventrículo Izquierdo (VI) en sus coordenadas radiales y circunferencial basada en criterios anatómicos. El paso de los hiperparámetros al DPN hace posible la comparación entre distintos pacientes. Los rangos de normalidad se definen mediante análisis estadístico de valores de voluntarios sanos en 45 regiones del DPN a lo largo de 9 fases sistólicas. Se ha usado un conjunto de 19 (14 H; E: 30.7±7.5) voluntarios sanos para crear los patrones de normalidad y se han validado usando 2 controles sanos y 3 pacientes afectados de contractilidad global reducida. Para los controles los resultados regionales se han ajustado dentro de la normalidad, mientras que para los pacientes se han obtenido valores anormales en las zonas descritas, localizando y cuantificando así el diagnóstico empírico. |
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IAM; |
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no |
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IAM @ iam @ GRP2008 |
Serial |
1032 |
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| Author |
O. Rodriguez-Leor; Carlo Gatta; E Fernandez-Nofrerias; Oriol Pujol; Neus Salvatella; C. Bosch; H. Tizon; Petia Radeva; J. Mauri |
| Title |
Computationally Efficient Image-based IVUS Pullbacks Gating |
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Journal |
| Year |
2008 |
Publication |
European Heart Journal, ESC Supplement, Munich, 2008, p. 775 |
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MILAB;HuPBA |
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no |
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BCNPCL @ bcnpcl @ RGF2008 |
Serial |
1036 |
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| Author |
Carlo Gatta; Oriol Pujol; O. Rodriguez-Leor; J. Mauri; Petia Radeva |
| Title |
Robust Image-based IVUS Pullbacks Gating |
Type |
Book Chapter |
| Year |
2008 |
Publication |
Proceedings 11th International ConferenceMedical Image Computing and Computer–Assisted Intervention |
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5242 |
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Pages |
518–525 |
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NY (USA) |
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MICCAI |
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MILAB;HuPBA |
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no |
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BCNPCL @ bcnpcl @ GPR2008a |
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1037 |
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| Author |
Carlo Gatta; Oriol Pujol; O. Rodriguez-Leor; Josefina Mauri; Petia Radeva |
| Title |
Improved Rigid Registration of Vessel Structures using the Fast Radial Symmetry Transform |
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Conference Article |
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2008 |
Publication |
Computer Vision for Intravascular Imaging CVII’08 Workshop Medical Image Computing and Computer–Assisted Intervention , 11th International Conference |
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128–136 |
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NY (USA) |
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MICCAI |
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MILAB;HUPBA |
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no |
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BCNPCL @ bcnpcl @ GPR2008b |
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1038 |
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| Author |
C. Malagelada; Fosca De Iorio; Fernando Azpiroz; Anna Accarino; Santiago Segui; Petia Radeva; Juan R. Malagelada |
| Title |
New Insight Into Intestinal Motor Function via Noninvasive Endoluminal Image Analysis |
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Journal |
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2008 |
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Gastroenterology |
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135 |
Issue |
4 |
Pages |
1155–1162 |
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MILAB |
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no |
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BCNPCL @ bcnpcl @ MDA2008 |
Serial |
1040 |
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| Author |
Sergio Escalera; Oriol Pujol; J. Mauri; Petia Radeva |
| Title |
IVUS Tissue Characterization with Sub-class Error-correcting Output Codes |
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Conference Article |
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2008 |
Publication |
Computer Vision and Pattern Recognition Workshops, 2008. CVPR Workshops 2008. IEEE Computer Society Conference on, pp. 1–8, 23–28 juny 2008. |
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Intravascular ultrasound (IVUS) represents a powerful imaging technique to explore coronary vessels and to study their morphology and histologic properties. In this paper, we characterize different tissues based on Radio Frequency, texture-based, slope-based, and combined features. To deal with the classification of multiple tissues, we require the use of robust multi-class learning techniques. In this context, we propose a strategy to model multi-class classification tasks using sub-classes information in the ECOC framework. The new strategy splits the classes into different subsets according to the applied base classifier. Complex IVUS data sets containing overlapping data are learnt by splitting the original set of classes into sub-classes, and embedding the binary problems in a problem-dependent ECOC design. The method automatically characterizes different tissues, showing performance improvements over the state-of-the-art ECOC techniques for different base classifiers and feature sets. |
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CVPR |
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MILAB;HuPBA |
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no |
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BCNPCL @ bcnpcl @ EPM2008 |
Serial |
1041 |
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Sergio Escalera; Oriol Pujol; Eric Laciar; Jordi Vitria; Esther Pueyo; Petia Radeva |
| Title |
Coronary Damage Classification of Patients with the Chagas Disease with Error-Correcting Output Codes |
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Conference Article |
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2008 |
Publication |
Intelligent Systems, 4th International IEEE Conference, 6–8 setembre 2008. |
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2 |
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12–17 |
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The Chagaspsila disease is endemic in all Latin America, affecting millions of people in the continent. In order to diagnose and treat the Chagaspsila disease, it is important to detect and measure the coronary damage of the patient. In this paper, we analyze and categorize patients into different groups based on the coronary damage produced by the disease. Based on the features of the heart cycle extracted using high resolution ECG, a multi-class scheme of error-correcting output codes (ECOC) is formulated and successfully applied. The results show that the proposed scheme obtains significant performance improvements compared to previous works and state-of-the-art ECOC designs. |
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Varna (Bulgaria) |
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IS’08 |
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MILAB; OR;HuPBA;MV |
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no |
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BCNPCL @ bcnpcl @ EPL2008 |
Serial |
1042 |
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| Author |
Agata Lapedriza; David Masip; Jordi Vitria |
| Title |
On the Use of Independent Tasks for Face Recognition |
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Conference Article |
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2008 |
Publication |
IEEE Computer Society Conference on Computer Vision and Pattern Recognition |
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1–6 |
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CVPR |
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OR; MV |
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no |
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BCNPCL @ bcnpcl @ LMV2008b |
Serial |
1043 |
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