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Author David Guillamet; Jordi Vitria
Title (up) Determining a Suitable Metric when using Non-negative Matrix Factorization. Type Miscellaneous
Year 2002 Publication IEEE International Conference on Pattern Recognition, 2: 128–131. Abbreviated Journal
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Address Quebec, Canada
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Notes OR;MV Approved no
Call Number BCNPCL @ bcnpcl @ GVi2002 Serial 294
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Author Pau Cano; Alvaro Caravaca; Debora Gil; Eva Musulen
Title (up) Diagnosis of Helicobacter pylori using AutoEncoders for the Detection of Anomalous Staining Patterns in Immunohistochemistry Images Type Miscellaneous
Year 2023 Publication Arxiv Abbreviated Journal
Volume Issue Pages 107241
Keywords
Abstract 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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Notes IAM Approved no
Call Number Admin @ si @ CCG2023 Serial 3855
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Author David Guillamet; Jordi Vitria
Title (up) Discriminant Basis for Object Classification. Type Miscellaneous
Year 2001 Publication 11th International Conference on Image Analysis and Processing, ICIAP 2001, 256–261 Abbreviated Journal
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Address Italia
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Notes OR;MV Approved no
Call Number BCNPCL @ bcnpcl @ GuV2001c Serial 103
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Author Petia Radeva; Jordi Vitria
Title (up) Discriminant Projections Embedding for Nearest Neighbor Classification Type Miscellaneous
Year 2004 Publication 9th Iberoamerican Congress on Pattern Recognition, LNCS 3287:312–319 Abbreviated Journal
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Address Puebla (Mexico)
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Notes OR;MILAB;MV Approved no
Call Number BCNPCL @ bcnpcl @ RaV2004a Serial 471
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Author A. Martinez
Title (up) Disseny d´agents autonoms. Type Miscellaneous
Year 1994 Publication Graduating Project Abbreviated Journal
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Corporate Author Thesis Master's thesis
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Notes Approved no
Call Number Admin @ si @ Mar1994 Serial 236
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Author Jordi Vitria
Title (up) Disseny de sistemes (intel.ligents) de visio. Type Miscellaneous
Year 1996 Publication Abbreviated Journal
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Notes OR;MV Approved no
Call Number BCNPCL @ bcnpcl @ Vit1996a Serial 88
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Author Matthias S. Keil; Jordi Vitria
Title (up) 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 Type Miscellaneous
Year 2005 Publication European Conference on Visual Perception Abbreviated Journal
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Notes OR;MV Approved no
Call Number BCNPCL @ bcnpcl @ KeV2005b Serial 607
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Author Debora Gil; Katerine Diaz; Carles Sanchez; Aura Hernandez-Sabate
Title (up) Early Screening of SARS-CoV-2 by Intelligent Analysis of X-Ray Images Type Miscellaneous
Year 2020 Publication Arxiv Abbreviated Journal
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Abstract 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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Notes IAM; 600.139; 600.145; 601.337 Approved no
Call Number Admin @ si @ GDS2020 Serial 3474
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Author Estefania Talavera; Andreea Glavan; Alina Matei; Petia Radeva
Title (up) Eating Habits Discovery in Egocentric Photo-streams Type Miscellaneous
Year 2020 Publication Arxiv Abbreviated Journal
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Abstract 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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Notes MILAB Approved no
Call Number Admin @ si @ TGM2020 Serial 3536
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Author Francesco Ciompi
Title (up) ECOC-based Plaque Classification using In-vivo and Exvivo Intravascular Ultrasound Data Type Miscellaneous
Year 2008 Publication CVC Technical Report #125 Abbreviated Journal
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Address Bellaterra (Spain)
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Notes Approved no
Call Number Admin @ si @ Cio2008 Serial 1145
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Author Sergio Escalera; Oriol Pujol; Petia Radeva
Title (up) ECOC-ONE: A novel coding and decoding strategy Type Miscellaneous
Year 2006 Publication 18th International Conference on Pattern Recognition (ICPR´06), 3: 578–581, ISBN: 0–7695–2521–0 Abbreviated Journal
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Address Hong Kong
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Notes MILAB;HuPBA Approved no
Call Number BCNPCL @ bcnpcl @ EPR2006b Serial 693
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Author J. Mauri; E Fernandez-Nofrerias; Petia Radeva; V. Valle
Title (up) Ecografia intracoronaria, una ajuda o un mestre en lintervencionisme coronari?" Type Miscellaneous
Year 2000 Publication Revista de la Societat Catalana de Cardiologia, 3, 435–443. Abbreviated Journal
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Notes MILAB Approved no
Call Number BCNPCL @ bcnpcl @ MFR2000 Serial 437
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Author J. Mauri; E Fernandez-Nofrerias; E. Esplugas; A. Cequier; David Rotger; Ricardo Toledo; Petia Radeva; ; Juan J. Villanueva
Title (up) Ecografia Intracoronaria: Navegacion Informatica por el cubo de datos de las imagenes. Type Miscellaneous
Year 2000 Publication Congreso de la Sociedad Española de Cardiologia. Abbreviated Journal
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Address Granada.
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Notes MILAB;ADAS Approved no
Call Number BCNPCL @ bcnpcl @ MNE2000 Serial 356
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Author W.Win; B.Bao; Q.Xu; Luis Herranz; Shuqiang Jiang
Title (up) Editorial Note: Efficient Multimedia Processing Methods and Applications Type Miscellaneous
Year 2019 Publication Multimedia Tools and Applications Abbreviated Journal MTAP
Volume 78 Issue 1 Pages
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Notes LAMP; 600.141; 600.120 Approved no
Call Number Admin @ si @ WBX2019 Serial 3257
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Author Angel Sappa
Title (up) Efficient Closed Contour Extraction from Range Image Edge Points Type Miscellaneous
Year 2005 Publication IEEE International Conference on Robotics and Automation Abbreviated Journal
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Address Barcelona (Spain)
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Notes Approved no
Call Number ADAS @ adas @ Sap2005 Serial 538
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