| Records |
| Author |
Francesc Tous; Agnes Borras; Robert Benavente; Ramon Baldrich; Maria Vanrell; Josep Llados |
| Title |
Textual Descriptors for browsing people by visual appearence. |
Type  |
Conference Article |
| Year |
2002 |
Publication |
5è. Congrés Català d’Intel·ligència Artificial CCIA |
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Issue |
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Pages |
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| Keywords |
Image retrieval, textual descriptors, colour naming, colour normalization, graph matching. |
| Abstract |
This paper presents a first approach to build colour and structural descriptors for information retrieval on a people database. Queries are formulated in terms of their appearance that allows to seek people wearing specific clothes of a given colour name or texture. Descriptors are automatically computed by following three essential steps. A colour naming labelling from pixel properties. A region seg- mentation step based on colour properties of pixels combined with edge information. And a high level step that models the region arrangements in order to build clothes structure. Results are tested on large set of images from real scenes taken at the entrance desk of a building. |
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DAG;CIC |
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no |
| Call Number |
CAT @ cat @ TBB2002a |
Serial |
287 |
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| Author |
Fernando Vilariño; Petia Radeva |
| Title |
Patch-Optimized Discriminant Active Contours for Medical Image Segmentation. |
Type |
Conference Article |
| Year |
2002 |
Publication |
Iberoamerican Conference on Artificial Intelligence |
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Sevilla, Espanya |
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Springer Verlag |
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IBERAMIA |
| Notes |
MV;MILAB;SIAI |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ ViR2002; IAM @ iam @ VRa2003 |
Serial |
320 |
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| Author |
Joan Serrat; Antonio Lopez; David Lloret |
| Title |
On ridges and valleys. |
Type |
Conference Article |
| Year |
2000 |
Publication |
15 th International Conference on Pattern Recognition |
Abbreviated Journal |
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| Volume |
4 |
Issue |
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Pages |
59-66 |
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| Address |
Barcelona |
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ICPR |
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ADAS |
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no |
| Call Number |
ADAS @ adas @ SLL2000 d |
Serial |
334 |
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| Author |
Agnes Borras; Francesc Tous; Josep Llados; Maria Vanrell |
| Title |
High-Level Clothes Description Based on Colour-Texture and Structural Features |
Type |
Conference Article |
| Year |
2003 |
Publication |
1rst. Iberian Conference on Pattern Recognition and Image Analysis IbPRIA 2003 |
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| Address |
Palma de Mallorca |
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DAG;CIC |
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no |
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CAT @ cat @ BTL2003b |
Serial |
369 |
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| Author |
Judit Martinez; Eva Costa; P. Herreros; Antonio Lopez; Juan J. Villanueva |
| Title |
TV-Screen Quality Inspection by Artificial Vision |
Type |
Conference Article |
| Year |
2003 |
Publication |
Proceedings SPIE 5132, Sixth International Conference on Quality Control by Artificial Vision (QCAV 2003) |
Abbreviated Journal |
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Issue |
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Pages |
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| Abstract |
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. |
| Address |
Gatlinburg, (EEUU) |
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ADAS |
Approved |
no |
| Call Number |
ADAS @ adas @ MCH2003a |
Serial |
393 |
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| Author |
Angel Sappa; Niki Aifanti; Sotiris Malassiotis; Michael G. Strintzis |
| Title |
Monocular 3D Human Body Reconstruction Towards Depth Augmentation of Television Sequences |
Type |
Conference Article |
| Year |
2003 |
Publication |
IEEE International Conference on Image Processing, Barcelona, Spain, September 2003 |
Abbreviated Journal |
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Issue |
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Pages |
325-328 |
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| Address |
Barcelona |
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ADAS |
Approved |
no |
| Call Number |
ADAS @ adas @ SAM2003 |
Serial |
418 |
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| Author |
Anna Salvatella; Maria Vanrell; Juan J. Villanueva |
| Title |
Texture Description based on Subtexture Components, 3rd International Workshop on Texture Syntesis and Analysis |
Type |
Conference Article |
| Year |
2003 |
Publication |
3rd International Workshop on Texture Synthesis and Analysis, |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
77–82 |
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| Abstract |
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| Address |
Nice |
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ISBN |
1-904410-11-1 |
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Conference |
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| Notes |
CIC |
Approved |
no |
| Call Number |
CAT @ cat @ SVV2003 |
Serial |
422 |
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| Author |
Angel Sappa; M.A. Garcia |
| Title |
Hierarchical Clustering of 3D Objects and its Application to Minimum Distance Computation |
Type |
Conference Article |
| Year |
2004 |
Publication |
IEEE International Conference on Robotics & Automation, 5287–5292, New Orleans, LA (USA), ISBN: 0–7803–8232–3 |
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| Address |
New Orleans, LA, USA |
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ADAS |
Approved |
no |
| Call Number |
ADAS @ adas @ SaG2004b |
Serial |
459 |
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| Author |
Muhammad Anwer Rao; David Vazquez; Antonio Lopez |
| Title |
Opponent Colors for Human Detection |
Type |
Conference Article |
| Year |
2011 |
Publication |
5th Iberian Conference on Pattern Recognition and Image Analysis |
Abbreviated Journal |
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| Volume |
6669 |
Issue |
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Pages |
363-370 |
| Keywords |
Pedestrian Detection; Color; Part Based Models |
| Abstract |
Human detection is a key component in fields such as advanced driving assistance and video surveillance. However, even detecting non-occluded standing humans remains a challenge of intensive research. Finding good features to build human models for further detection is probably one of the most important issues to face. Currently, shape, texture and motion features have deserve extensive attention in the literature. However, color-based features, which are important in other domains (e.g., image categorization), have received much less attention. In fact, the use of RGB color space has become a kind of choice by default. The focus has been put in developing first and second order features on top of RGB space (e.g., HOG and co-occurrence matrices, resp.). In this paper we evaluate the opponent colors (OPP) space as a biologically inspired alternative for human detection. In particular, by feeding OPP space in the baseline framework of Dalal et al. for human detection (based on RGB, HOG and linear SVM), we will obtain better detection performance than by using RGB space. This is a relevant result since, up to the best of our knowledge, OPP space has not been previously used for human detection. This suggests that in the future it could be worth to compute co-occurrence matrices, self-similarity features, etc., also on top of OPP space, i.e., as we have done with HOG in this paper. |
| Address |
Las Palmas de Gran Canaria. Spain |
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Thesis |
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| Publisher |
Springer |
Place of Publication |
Berlin Heidelberg |
Editor |
J. Vitria; J.M. Sanches; M. Hernandez |
| Language |
English |
Summary Language |
English |
Original Title |
Opponent Colors for Human Detection |
| Series Editor |
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Series Title |
Lecture Notes on Computer Science |
Abbreviated Series Title |
LNCS |
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Edition |
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| ISSN |
0302-9743 |
ISBN |
978-3-642-21256-7 |
Medium |
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Conference |
IbPRIA |
| Notes |
ADAS |
Approved |
no |
| Call Number |
ADAS @ adas @ RVL2011a |
Serial |
1666 |
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| Author |
Joel Barajas; Jaume Garcia; Francesc Carreras; Sandra Pujades; Petia Radeva |
| Title |
Angle Images Using Gabor Filters in Cardiac Tagged MRI |
Type |
Conference Article |
| Year |
2005 |
Publication |
Proceeding of the 2005 conference on Artificial Intelligence Research and Development |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
107-114 |
| Keywords |
Angle Images, Gabor Filters, Harp, Tagged Mri |
| Abstract |
Tagged Magnetic Resonance Imaging (MRI) is a non-invasive technique used to examine cardiac deformation in vivo. An Angle Image is a representation of a Tagged MRI which recovers the relative position of the tissue respect to the distorted tags. Thus cardiac deformation can be estimated. This paper describes a new approach to generate Angle Images using a bank of Gabor filters in short axis cardiac Tagged MRI. Our method improves the Angle Images obtained by global techniques, like HARP, with a local frequency analysis. We propose to use the phase response of a combination of a Gabor filters bank, and use it to find a more precise deformation of the left ventricle. We demonstrate the accuracy of our method over HARP by several experimental results. |
| Address |
Amsterdam; The Netherlands |
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Thesis |
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| Publisher |
IOS Press |
Place of Publication |
Amsterdam, The Netherlands |
Editor |
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Series Title |
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Series Issue |
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Edition |
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ISBN |
1-58603-560-6 |
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Conference |
CAIRD |
| Notes |
IAM;MILAB |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ BGC2005; IAM @ iam |
Serial |
595 |
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| Author |
Anton Cervantes; Gemma Sanchez; Josep Llados; Agnes Borras; A. Rodriguez |
| Title |
Biometric Recognition Based on Line Shape Descriptors |
Type |
Conference Article |
| Year |
2005 |
Publication |
Sixth IAPR International Workshop on Graphics Recognition (GREC 2005) |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
335–344 |
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| Address |
Hong Kong (China) |
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Summary Language |
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| Notes |
DAG |
Approved |
no |
| Call Number |
DAG @ dag @ CSL2005 |
Serial |
596 |
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| Author |
Jaume Garcia; Joel Barajas; Francesc Carreras; Sandra Pujades; Petia Radeva |
| Title |
An intuitive validation technique to compare local versus global tagged MRI analysis |
Type |
Conference Article |
| Year |
2005 |
Publication |
Computers In Cardiology |
Abbreviated Journal |
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| Volume |
32 |
Issue |
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Pages |
29–32 |
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| Abstract |
Myocardium appears as a uniform tissue that seen in convectional Magnetic Resonance Images (MRI) shows just the contractile part of its movement. MR Tagging is a unique imaging technique that prints a grid over the tissue which moves according to the underlying movement of the myocardium revealing the true deformation of the cardiac muscle. Optical flow techniques based on spectral information estimate tissue displacement by analyzing information encoded in the phase maps which can be obtained using, local (Gabor) and global (HARP) methods. In this paper we compare both in synthetic and real Tagged MR sequences. We conclude that local method is slightly more accurate than the global one. On the other hand, global method is more efficient as it is much faster and less parameters have to be taken into account |
| Address |
Lyon (France) |
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Thesis |
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Summary Language |
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Edition |
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ISBN |
0-7803-9337-6 |
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| Notes |
IAM;MILAB |
Approved |
no |
| Call Number |
IAM @ iam @ GBC2005 |
Serial |
639 |
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| Author |
Fernando Lopez; J.M. Valiente; Ramon Baldrich; Maria Vanrell |
| Title |
Fast surface grading using color statistics in the CIELab space |
Type |
Conference Article |
| Year |
2005 |
Publication |
Pattern Recognition and Image Analysis. IbPRIA 2005 |
Abbreviated Journal |
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| Volume |
LNCS 3523 |
Issue |
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Pages |
66-673 |
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| Address |
Germany |
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LNCS |
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Conference |
IbPRIA |
| Notes |
CIC |
Approved |
no |
| Call Number |
CAT @ cat @ LVB2005 |
Serial |
641 |
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| Author |
Carme Julia; Angel Sappa; Felipe Lumbreras; Joan Serrat; Antonio Lopez |
| Title |
Factorization with Missing and Noisy Data |
Type |
Conference Article |
| Year |
2006 |
Publication |
6th International Conference on Computational Science |
Abbreviated Journal |
ICCS´06 |
| Volume |
LNCS 3991 |
Issue |
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Pages |
555–562 |
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| Address |
Reading (United Kingdom) |
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ADAS |
Approved |
no |
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ADAS @ adas @ JSL2006b |
Serial |
653 |
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| Author |
Angel Sappa; David Geronimo; Fadi Dornaika; Antonio Lopez |
| Title |
Real Time Vehicle Pose Using On-Board Stereo Vision System |
Type |
Conference Article |
| Year |
2006 |
Publication |
International Conference on Image Analysis and Recognition |
Abbreviated Journal |
ICIAR |
| Volume |
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Issue |
LNCS 4142 |
Pages |
205–216 |
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| Abstract |
This paper presents a robust technique for a real time estimation of both camera’s position and orientation—referred as pose. A commercial stereo vision system is used. Unlike previous approaches, it can be used either for urban or highway scenarios. The proposed technique consists of two stages. Initially, a compact 2D representation of the original 3D data points is computed. Then, a RANSAC based least squares approach is used for fitting a plane to the road. At the same time,
relative camera’s position and orientation are computed. The proposed technique is intended to be used on a driving assistance scheme for applications such as obstacle or pedestrian detection. Experimental results on urban environments with different road geometries are presented. |
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| Notes |
ADAS |
Approved |
no |
| Call Number |
ADAS @ adas @ SGD2006b |
Serial |
671 |
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