| Records |
| Author |
Hugo Jair Escalante; Isabelle Guyon; Sergio Escalera; Julio C. S. Jacques Junior; Xavier Baro; Evelyne Viegas; Yagmur Gucluturk; Umut Guclu; Marcel A. J. van Gerven; Rob van Lier; Meysam Madadi; Stephane Ayache |
| Title |
Design of an Explainable Machine Learning Challenge for Video Interviews |
Type |
Conference Article |
| Year |
2017 |
Publication |
International Joint Conference on Neural Networks |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Abstract |
This paper reviews and discusses research advances on “explainable machine learning” in computer vision. We focus on a particular area of the “Looking at People” (LAP) thematic domain: first impressions and personality analysis. Our aim is to make the computational intelligence and computer vision communities aware of the importance of developing explanatory mechanisms for computer-assisted decision making applications, such as automating recruitment. Judgments based on personality traits are being made routinely by human resource departments to evaluate the candidates' capacity of social insertion and their potential of career growth. However, inferring personality traits and, in general, the process by which we humans form a first impression of people, is highly subjective and may be biased. Previous studies have demonstrated that learning machines can learn to mimic human decisions. In this paper, we go one step further and formulate the problem of explaining the decisions of the models as a means of identifying what visual aspects are important, understanding how they relate to decisions suggested, and possibly gaining insight into undesirable negative biases. We design a new challenge on explainability of learning machines for first impressions analysis. We describe the setting, scenario, evaluation metrics and preliminary outcomes of the competition. To the best of our knowledge this is the first effort in terms of challenges for explainability in computer vision. In addition our challenge design comprises several other quantitative and qualitative elements of novelty, including a “coopetition” setting, which combines competition and collaboration. |
| Address |
Anchorage; Alaska; USA; May 2017 |
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Conference  |
IJCNN |
| Notes |
HUPBA; no proj |
Approved |
no |
| Call Number |
Admin @ si @ EGE2017 |
Serial |
2922 |
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| Author |
Sergio Escalera; Xavier Baro; Hugo Jair Escalante; Isabelle Guyon |
| Title |
ChaLearn Looking at People: A Review of Events and Resources |
Type |
Conference Article |
| Year |
2017 |
Publication |
30th International Joint Conference on Neural Networks |
Abbreviated Journal |
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Issue |
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| Abstract |
This paper reviews the historic of ChaLearn Looking at People (LAP) events. We started in 2011 (with the release of the first Kinect device) to run challenges related to human action/activity and gesture recognition. Since then we have regularly organized events in a series of competitions covering all aspects of visual analysis of humans. So far we have organized more than 10 international challenges and events in this field. This paper reviews associated events, and introduces the ChaLearn LAP platform where public resources (including code, data and preprints of papers) related to the organized events are available. We also provide a discussion on perspectives of ChaLearn LAP activities. |
| Address |
Anchorage; Alaska; USA; May 2017 |
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Conference |
IJCNN |
| Notes |
HuPBA; 602.143 |
Approved |
no |
| Call Number |
Admin @ si @ EBE2017 |
Serial |
3012 |
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| Author |
Victor Ponce; Mario Gorga; Xavier Baro; Sergio Escalera |
| Title |
Human Behavior Analysis from Video Data Using Bag-of-Gestures |
Type |
Conference Article |
| Year |
2011 |
Publication |
22nd International Joint Conference on Artificial Intelligence |
Abbreviated Journal |
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| Volume |
3 |
Issue |
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Pages |
2836-2837 |
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| Abstract |
Human Behavior Analysis in Uncontrolled Environments can be categorized in two main challenges: 1) Feature extraction and 2) Behavior analysis from a set of corporal language vocabulary. In this work, we present our achievements characterizing some simple behaviors from visual data on different real applications and discuss our plan for future work: low level vocabulary definition from bag-of-gesture units and high level modelling and inference of human behaviors. |
| Address |
Barcelona |
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ISBN |
978-1-57735-516-8 |
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Expedition |
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Conference |
IJCAI |
| Notes |
HuPBA;MV |
Approved |
no |
| Call Number |
Admin @ si @ PGB2011b |
Serial |
1770 |
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| Author |
Xinhang Song; Shuqiang Jiang; Luis Herranz |
| Title |
Combining Models from Multiple Sources for RGB-D Scene Recognition |
Type |
Conference Article |
| Year |
2017 |
Publication |
26th International Joint Conference on Artificial Intelligence |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
4523-4529 |
| Keywords |
Robotics and Vision; Vision and Perception |
| Abstract |
Depth can complement RGB with useful cues about object volumes and scene layout. However, RGB-D image datasets are still too small for directly training deep convolutional neural networks (CNNs), in contrast to the massive monomodal RGB datasets. Previous works in RGB-D recognition typically combine two separate networks for RGB and depth data, pretrained with a large RGB dataset and then fine tuned to the respective target RGB and depth datasets. These approaches have several limitations: 1) only use low-level filters learned from RGB data, thus not being able to exploit properly depth-specific patterns, and 2) RGB and depth features are only combined at high-levels but rarely at lower-levels. In this paper, we propose a framework that leverages both knowledge acquired from large RGB datasets together with depth-specific cues learned from the limited depth data, obtaining more effective multi-source and multi-modal representations. We propose a multi-modal combination method that selects discriminative combinations of layers from the different source models and target modalities, capturing both high-level properties of the task and intrinsic low-level properties of both modalities. |
| Address |
Melbourne; Australia; August 2017 |
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Conference |
IJCAI |
| Notes |
LAMP; 600.120 |
Approved |
no |
| Call Number |
Admin @ si @ SJH2017b |
Serial |
2966 |
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| Author |
Olivier Lefebvre; Pau Riba; Charles Fournier; Alicia Fornes; Josep Llados; Rejean Plamondon; Jules Gagnon-Marchand |
| Title |
Monitoring neuromotricity on-line: a cloud computing approach |
Type |
Conference Article |
| Year |
2015 |
Publication |
17th Conference of the International Graphonomics Society IGS2015 |
Abbreviated Journal |
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Issue |
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Pages |
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| Abstract |
The goal of our experiment is to develop a useful and accessible tool that can be used to evaluate a patient's health by analyzing handwritten strokes. We use a cloud computing approach to analyze stroke data sampled on a commercial tablet working on the Android platform and a distant server to perform complex calculations using the Delta and Sigma lognormal algorithms. A Google Drive account is used to store the data and to ease the development of the project. The communication between the tablet, the cloud and the server is encrypted to ensure biomedical information confidentiality. Highly parameterized biomedical tests are implemented on the tablet as well as a free drawing test to evaluate the validity of the data acquired by the first test compared to the second one. A blurred shape model descriptor pattern recognition algorithm is used to classify the data obtained by the free drawing test. The functions presented in this paper are still currently under development and other improvements are needed before launching the application in the public domain. |
| Address |
Pointe-à-Pitre; Guadeloupe; June 2015 |
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Edition |
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Medium |
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Expedition |
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Conference |
IGS |
| Notes |
DAG; 600.077 |
Approved |
no |
| Call Number |
Admin @ si @ LRF2015 |
Serial |
2617 |
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| Author |
Asma Bensalah; Alicia Fornes; Cristina Carmona_Duarte; Josep Llados |
| Title |
Easing Automatic Neurorehabilitation via Classification and Smoothness Analysis |
Type |
Conference Article |
| Year |
2022 |
Publication |
Intertwining Graphonomics with Human Movements. 20th International Conference of the International Graphonomics Society, IGS 2022 |
Abbreviated Journal |
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| Volume |
13424 |
Issue |
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Pages |
336-348 |
| Keywords |
Neurorehabilitation; Upper-lim; Movement classification; Movement smoothness; Deep learning; Jerk |
| Abstract |
Assessing the quality of movements for post-stroke patients during the rehabilitation phase is vital given that there is no standard stroke rehabilitation plan for all the patients. In fact, it depends basically on the patient’s functional independence and its progress along the rehabilitation sessions. To tackle this challenge and make neurorehabilitation more agile, we propose an automatic assessment pipeline that starts by recognising patients’ movements by means of a shallow deep learning architecture, then measuring the movement quality using jerk measure and related measures. A particularity of this work is that the dataset used is clinically relevant, since it represents movements inspired from Fugl-Meyer a well common upper-limb clinical stroke assessment scale for stroke patients. We show that it is possible to detect the contrast between healthy and patients movements in terms of smoothness, besides achieving conclusions about the patients’ progress during the rehabilitation sessions that correspond to the clinicians’ findings about each case. |
| Address |
June 7-9, 2022, Las Palmas de Gran Canaria, Spain |
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Series Title |
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Abbreviated Series Title |
LNCS |
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Edition |
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Expedition |
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Conference |
IGS |
| Notes |
DAG; 600.121; 600.162; 602.230; 600.140 |
Approved |
no |
| Call Number |
Admin @ si @ BFC2022 |
Serial |
3738 |
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| Author |
Alicia Fornes; Asma Bensalah; Cristina Carmona_Duarte; Jialuo Chen; Miguel A. Ferrer; Andreas Fischer; Josep Llados; Cristina Martin; Eloy Opisso; Rejean Plamondon; Anna Scius-Bertrand; Josep Maria Tormos |
| Title |
The RPM3D Project: 3D Kinematics for Remote Patient Monitoring |
Type |
Conference Article |
| Year |
2022 |
Publication |
Intertwining Graphonomics with Human Movements. 20th International Conference of the International Graphonomics Society, IGS 2022 |
Abbreviated Journal |
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| Volume |
13424 |
Issue |
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Pages |
217-226 |
| Keywords |
Healthcare applications; Kinematic; Theory of Rapid Human Movements; Human activity recognition; Stroke rehabilitation; 3D kinematics |
| Abstract |
This project explores the feasibility of remote patient monitoring based on the analysis of 3D movements captured with smartwatches. We base our analysis on the Kinematic Theory of Rapid Human Movement. We have validated our research in a real case scenario for stroke rehabilitation at the Guttmann Institute (https://www.guttmann.com/en/) (neurorehabilitation hospital), showing promising results. Our work could have a great impact in remote healthcare applications, improving the medical efficiency and reducing the healthcare costs. Future steps include more clinical validation, developing multi-modal analysis architectures (analysing data from sensors, images, audio, etc.), and exploring the application of our technology to monitor other neurodegenerative diseases. |
| Address |
June 7-9, 2022, Las Palmas de Gran Canaria, Spain |
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LNCS |
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Conference |
IGS |
| Notes |
DAG; 600.121; 600.162; 602.230; 600.140 |
Approved |
no |
| Call Number |
Admin @ si @ FBC2022 |
Serial |
3739 |
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| Author |
Asma Bensalah; Antonio Parziale; Giuseppe De Gregorio; Angelo Marcelli; Alicia Fornes; Josep Llados |
| Title |
I Can’t Believe It’s Not Better: In-air Movement for Alzheimer Handwriting Synthetic Generation |
Type |
Conference Article |
| Year |
2023 |
Publication |
21st International Graphonomics Conference |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
136–148 |
| Keywords |
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| Abstract |
During recent years, there here has been a boom in terms of deep learning use for handwriting analysis and recognition. One main application for handwriting analysis is early detection and diagnosis in the health field. Unfortunately, most real case problems still suffer a scarcity of data, which makes difficult the use of deep learning-based models. To alleviate this problem, some works resort to synthetic data generation. Lately, more works are directed towards guided data synthetic generation, a generation that uses the domain and data knowledge to generate realistic data that can be useful to train deep learning models. In this work, we combine the domain knowledge about the Alzheimer’s disease for handwriting and use it for a more guided data generation. Concretely, we have explored the use of in-air movements for synthetic data generation. |
| Address |
Evora; Portugal; October 2023 |
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Conference |
IGS |
| Notes |
DAG |
Approved |
no |
| Call Number |
Admin @ si @ BPG2023 |
Serial |
3838 |
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| Author |
M. Campos-Taberner; Adriana Romero; Carlo Gatta; Gustavo Camps-Valls |
| Title |
Shared feature representations of LiDAR and optical images: Trading sparsity for semantic discrimination |
Type |
Conference Article |
| Year |
2015 |
Publication |
IEEE International Geoscience and Remote Sensing Symposium IGARSS2015 |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
4169 - 4172 |
| Keywords |
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| Abstract |
This paper studies the level of complementary information conveyed by extremely high resolution LiDAR and optical images. We pursue this goal following an indirect approach via unsupervised spatial-spectral feature extraction. We used a recently presented unsupervised convolutional neural network trained to enforce both population and lifetime spar-sity in the feature representation. We derived independent and joint feature representations, and analyzed the sparsity scores and the discriminative power. Interestingly, the obtained results revealed that the RGB+LiDAR representation is no longer sparse, and the derived basis functions merge color and elevation yielding a set of more expressive colored edge filters. The joint feature representation is also more discriminative when used for clustering and topological data visualization. |
| Address |
Milan; Italy; July 2015 |
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Conference |
IGARSS |
| Notes |
LAMP; 600.079;MILAB |
Approved |
no |
| Call Number |
Admin @ si @ CRG2015 |
Serial |
2724 |
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| Author |
J.Kuhn; A.Nussbaumer; J.Pirker; Dimosthenis Karatzas; A. Pagani; O.Conlan; M.Memmel; C.M.Steiner; C.Gutl; D.Albert; Andreas Dengel |
| Title |
Advancing Physics Learning Through Traversing a Multi-Modal Experimentation Space |
Type |
Conference Article |
| Year |
2015 |
Publication |
Workshop Proceedings on the 11th International Conference on Intelligent Environments |
Abbreviated Journal |
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| Volume |
19 |
Issue |
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Pages |
373-380 |
| Keywords |
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| Abstract |
Translating conceptual knowledge into real world experiences presents a significant educational challenge. This position paper presents an approach that supports learners in moving seamlessly between conceptual learning and their application in the real world by bringing physical and virtual experiments into everyday settings. Learners are empowered in conducting these situated experiments in a variety of physical settings by leveraging state of the art mobile, augmented reality, and virtual reality technology. A blend of mobile-based multi-sensory physical experiments, augmented reality and enabling virtual environments can allow learners to bridge their conceptual learning with tangible experiences in a completely novel manner. This approach focuses on the learner by applying self-regulated personalised learning techniques, underpinned by innovative pedagogical approaches and adaptation techniques, to ensure that the needs and preferences of each learner are catered for individually. |
| Address |
Praga; Chzech Republic; July 2015 |
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Conference |
IE |
| Notes |
DAG; 600.077 |
Approved |
no |
| Call Number |
Admin @ si @ KNP2015 |
Serial |
2694 |
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| Author |
Francisco Javier Orozco; F.A. Garcia; J.L. Arcos; Jordi Gonzalez |
| Title |
Spatio-Temporal Reasoning for Reliable Facial Expression Interpretation |
Type |
Conference Article |
| Year |
2007 |
Publication |
Proceedings of the 5th International Conference on Computer Vision Systems |
Abbreviated Journal |
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Issue |
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Pages |
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| Abstract |
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| Address |
Bielefeld University (Germany) |
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Summary Language |
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Conference |
ICVS |
| Notes |
ISE |
Approved |
no |
| Call Number |
ISE @ ise @ OGA2007 |
Serial |
772 |
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| Author |
Santiago Segui; Laura Igual; Fernando Vilariño; Petia Radeva; Carolina Malagelada; Fernando Azpiroz; Jordi Vitria |
| Title |
Diagnostic System for Intestinal Motility Disfunctions Using Video Capsule Endoscopy |
Type |
Book Chapter |
| Year |
2008 |
Publication |
Computer Vision Systems. 6th International |
Abbreviated Journal |
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| Volume |
5008 |
Issue |
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Pages |
251–260 |
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| Abstract |
Wireless Video Capsule Endoscopy is a clinical technique consisting of the analysis of images from the intestine which are pro- vided by an ingestible device with a camera attached to it. In this paper we propose an automatic system to diagnose severe intestinal motility disfunctions using the video endoscopy data. The system is based on the application of computer vision techniques within a machine learn- ing framework in order to obtain the characterization of diverse motil- ity events from video sequences. We present experimental results that demonstrate the effectiveness of the proposed system and compare them with the ground-truth provided by the gastroenterologists. |
| Address |
Santorini (Greece) |
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Thesis |
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| Publisher |
Springer-Verlag |
Place of Publication |
Berlin Heidelberg |
Editor |
A. Gasteratos, M. Vincze, and J.K. Tsotsos |
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Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
LNCS |
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Series Issue |
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Edition |
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ISBN |
978-3-540-79546-9 |
Medium |
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| Area |
800 |
Expedition |
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Conference |
ICVS |
| Notes |
OR; MV; MILAB; SIAI |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ SIV2008; IAM @ iam @ SIV2008 |
Serial |
962 |
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| Author |
Sergio Escalera; Oriol Pujol; Petia Radeva |
| Title |
Sub-Class Error-Correcting Output Codes |
Type |
Book Chapter |
| Year |
2008 |
Publication |
Computer Vision Systems. 6th International Conference |
Abbreviated Journal |
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| Volume |
5008 |
Issue |
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Pages |
494–504 |
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| Address |
Santorini (Greece) |
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Conference |
ICVS |
| Notes |
MILAB;HuPBA |
Approved |
no |
| Call Number |
BCNPCL @ bcnpcl @ EPR2008c |
Serial |
963 |
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| Author |
David Aldavert; Ricardo Toledo; Arnau Ramisa; Ramon Lopez de Mantaras |
| Title |
Visual Registration Method For A Low Cost Robot: Computer Vision Systems |
Type |
Conference Article |
| Year |
2009 |
Publication |
7th International Conference on Computer Vision Systems |
Abbreviated Journal |
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| Volume |
5815 |
Issue |
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Pages |
204–214 |
| Keywords |
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| Abstract |
An autonomous mobile robot must face the correspondence or data association problem in order to carry out tasks like place recognition or unknown environment mapping. In order to put into correspondence two maps, most methods estimate the transformation relating the maps from matches established between low level feature extracted from sensor data. However, finding explicit matches between features is a challenging and computationally expensive task. In this paper, we propose a new method to align obstacle maps without searching explicit matches between features. The maps are obtained from a stereo pair. Then, we use a vocabulary tree approach to identify putative corresponding maps followed by the Newton minimization algorithm to find the transformation that relates both maps. The proposed method is evaluated in a typical office environment showing good performance. |
| Address |
Belgica |
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Thesis |
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| Publisher |
Springer Berlin Heidelberg |
Place of Publication |
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Summary Language |
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Original Title |
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Series Title |
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Abbreviated Series Title |
LNCS |
| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0302-9743 |
ISBN |
978-3-642-04666-7 |
Medium |
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Expedition |
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Conference |
ICVS |
| Notes |
ADAS |
Approved |
no |
| Call Number |
Admin @ si @ ATR2009b |
Serial |
1247 |
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| Author |
Debora Gil; Agnes Borras; Sergio Vera; Miguel Angel Gonzalez Ballester |
| Title |
A Validation Benchmark for Assessment of Medial Surface Quality for Medical Applications |
Type |
Conference Article |
| Year |
2013 |
Publication |
9th International Conference on Computer Vision Systems |
Abbreviated Journal |
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| Volume |
7963 |
Issue |
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Pages |
334-343 |
| Keywords |
Medial Surfaces; Shape Representation; Medical Applications; Performance Evaluation |
| Abstract |
Confident use of medial surfaces in medical decision support systems requires evaluating their quality for detecting pathological deformations and describing anatomical volumes. Validation in the medical imaging field is a challenging task mainly due to the difficulties for getting consensual ground truth. In this paper we propose a validation benchmark for assessing medial surfaces in the context of medical applications. Our benchmark includes a home-made database of synthetic medial surfaces and volumes and specific scores for evaluating surface accuracy, its stability against volume deformations and its capabilities for accurate reconstruction of anatomical volumes. |
| Address |
Sant Petersburg; Russia; July 2013 |
| Corporate Author |
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Thesis |
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| Publisher |
Springer Berlin Heidelberg |
Place of Publication |
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Editor |
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| Language |
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Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
LNCS |
| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0302-9743 |
ISBN |
978-3-642-39401-0 |
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Expedition |
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Conference |
ICVS |
| Notes |
IAM; 600.044; 600.060 |
Approved |
no |
| Call Number |
Admin @ si @ GBV2013 |
Serial |
2300 |
| Permanent link to this record |
