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Author |
X. Binefa; Jordi Vitria; Xavier Roca |
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Deteccion de profundidad en imagenes monoculares mediante vision activa. |
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Miscellaneous |
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1993 |
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Revista de Optica Pura y Aplicada, 26,3:636–648. |
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OR;ISE;MV |
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BCNPCL @ bcnpcl @ BVR1993 |
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144 |
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Author |
X. Binefa; Jordi Vitria; Xavier Roca |
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Deteccion de profundidad en imagenes monoculares mediante vision activa. |
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Miscellaneous |
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1992 |
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I Reunion Iberoamericana de Optica |
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Barcelona |
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OR;ISE;MV |
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BCNPCL @ bcnpcl @ BVR1992 |
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258 |
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Author |
Petia Radeva; A.F. Sole; Antonio Lopez; Joan Serrat |
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Detecting Nets of Linear Structures in Satellite Images. |
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1998 |
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ADAS;MILAB |
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ADAS @ adas @ RSL1998 |
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25 |
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Author |
Petia Radeva; A.F. Sole; Antonio Lopez; Joan Serrat |
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Detecting Nets of Linear Structures in Satellite Images. |
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Miscellaneous |
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1999 |
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Machine Vision and Advanced Image Processing in Remote Sensing, Springer, 304–316. |
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ADAS @ adas @ RSL1999 |
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34 |
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Author |
Antonio Lopez; Cristina Cañero; Joan Serrat; J. Saludes; Felipe Lumbreras; T. Graf |
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Detection of lane markings based on ridgeness and RANSAC |
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Miscellaneous |
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2005 |
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Proceedings of the 8th International IEEE Conference on Intelligent Transportation Systems, 733–738 |
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lane markings |
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Vienna (Austria) |
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ADAS |
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ADAS @ adas @ LCS2005 |
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588 |
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Author |
David Guillamet; Jordi Vitria |
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Determining a Suitable Metric when using Non-negative Matrix Factorization. |
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2002 |
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IEEE International Conference on Pattern Recognition, 2: 128–131. |
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Quebec, Canada |
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OR;MV |
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BCNPCL @ bcnpcl @ GVi2002 |
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294 |
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Author |
V. Valev; Petia Radeva |
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Determining structural descriptions by boolean formulas advances in structural and syntactic Pattern Recognition. |
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1992 |
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Proceeding of the International Workshop on Structural and Syntactic Pattern Recognition. Ed. Bunke, World Scientific Pub. |
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MILAB |
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no |
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BCNPCL @ bcnpcl @ VaR1992a |
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251 |
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Author |
Pau Cano; Alvaro Caravaca; Debora Gil; Eva Musulen |
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Diagnosis of Helicobacter pylori using AutoEncoders for the Detection of Anomalous Staining Patterns in Immunohistochemistry Images |
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Miscellaneous |
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2023 |
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Arxiv |
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107241 |
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This work addresses the detection of Helicobacter pylori a bacterium classified since 1994 as class 1 carcinogen to humans. By its highest specificity and sensitivity, the preferred diagnosis technique is the analysis of histological images with immunohistochemical staining, a process in which certain stained antibodies bind to antigens of the biological element of interest. This analysis is a time demanding task, which is currently done by an expert pathologist that visually inspects the digitized samples.
We propose to use autoencoders to learn latent patterns of healthy tissue and detect H. pylori as an anomaly in image staining. Unlike existing classification approaches, an autoencoder is able to learn patterns in an unsupervised manner (without the need of image annotations) with high performance. In particular, our model has an overall 91% of accuracy with 86\% sensitivity, 96% specificity and 0.97 AUC in the detection of H. pylori. |
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IAM |
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Admin @ si @ CCG2023 |
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3855 |
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Author |
David Guillamet; Jordi Vitria |
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Discriminant Basis for Object Classification. |
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2001 |
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11th International Conference on Image Analysis and Processing, ICIAP 2001, 256–261 |
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Italia |
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OR;MV |
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BCNPCL @ bcnpcl @ GuV2001c |
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103 |
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Author |
Petia Radeva; Jordi Vitria |
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Discriminant Projections Embedding for Nearest Neighbor Classification |
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2004 |
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9th Iberoamerican Congress on Pattern Recognition, LNCS 3287:312–319 |
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Puebla (Mexico) |
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OR;MILAB;MV |
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BCNPCL @ bcnpcl @ RaV2004a |
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471 |
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Author |
A. Martinez |
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Disseny d´agents autonoms. |
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1994 |
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Graduating Project |
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Admin @ si @ Mar1994 |
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236 |
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Author |
Jordi Vitria |
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Disseny de sistemes (intel.ligents) de visio. |
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1996 |
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OR;MV |
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BCNPCL @ bcnpcl @ Vit1996a |
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88 |
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Matthias S. Keil; Jordi Vitria |
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Does the brain generate representations of smooth brightness gradients? A novel account for Mach bands, Chevreul’s illusion, and a variant of the Ehrenstein disk |
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2005 |
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European Conference on Visual Perception |
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OR;MV |
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BCNPCL @ bcnpcl @ KeV2005b |
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607 |
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Debora Gil; Katerine Diaz; Carles Sanchez; Aura Hernandez-Sabate |
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Early Screening of SARS-CoV-2 by Intelligent Analysis of X-Ray Images |
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2020 |
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Arxiv |
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Future SARS-CoV-2 virus outbreak COVID-XX might possibly occur during the next years. However the pathology in humans is so recent that many clinical aspects, like early detection of complications, side effects after recovery or early screening, are currently unknown. In spite of the number of cases of COVID-19, its rapid spread putting many sanitary systems in the edge of collapse has hindered proper collection and analysis of the data related to COVID-19 clinical aspects. We describe an interdisciplinary initiative that integrates clinical research, with image diagnostics and the use of new technologies such as artificial intelligence and radiomics with the aim of clarifying some of SARS-CoV-2 open questions. The whole initiative addresses 3 main points: 1) collection of standardize data including images, clinical data and analytics; 2) COVID-19 screening for its early diagnosis at primary care centers; 3) define radiomic signatures of COVID-19 evolution and associated pathologies for the early treatment of complications. In particular, in this paper we present a general overview of the project, the experimental design and first results of X-ray COVID-19 detection using a classic approach based on HoG and feature selection. Our experiments include a comparison to some recent methods for COVID-19 screening in X-Ray and an exploratory analysis of the feasibility of X-Ray COVID-19 screening. Results show that classic approaches can outperform deep-learning methods in this experimental setting, indicate the feasibility of early COVID-19 screening and that non-COVID infiltration is the group of patients most similar to COVID-19 in terms of radiological description of X-ray. Therefore, an efficient COVID-19 screening should be complemented with other clinical data to better discriminate these cases. |
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IAM; 600.139; 600.145; 601.337 |
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Admin @ si @ GDS2020 |
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3474 |
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Author |
Estefania Talavera; Andreea Glavan; Alina Matei; Petia Radeva |
![download PDF file pdf](img/file_PDF.gif)
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Title ![sorted by Title field, ascending order (up)](img/sort_asc.gif) |
Eating Habits Discovery in Egocentric Photo-streams |
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Miscellaneous |
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2020 |
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Arxiv |
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CoRR abs/2009.07646
Eating habits are learned throughout the early stages of our lives. However, it is not easy to be aware of how our food-related routine affects our healthy living. In this work, we address the unsupervised discovery of nutritional habits from egocentric photo-streams. We build a food-related behavioural pattern discovery model, which discloses nutritional routines from the activities performed throughout the days. To do so, we rely on Dynamic-Time-Warping for the evaluation of similarity among the collected days. Within this framework, we present a simple, but robust and fast novel classification pipeline that outperforms the state-of-the-art on food-related image classification with a weighted accuracy and F-score of 70% and 63%, respectively. Later, we identify days composed of nutritional activities that do not describe the habits of the person as anomalies in the daily life of the user with the Isolation Forest method. Furthermore, we show an application for the identification of food-related scenes when the camera wearer eats in isolation. Results have shown the good performance of the proposed model and its relevance to visualize the nutritional habits of individuals. |
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Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
MILAB |
Approved |
no |
|
|
Call Number |
Admin @ si @ TGM2020 |
Serial |
3536 |
|
Permanent link to this record |