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Author |
Jaime Lopez-Krahe; Josep Llados; Enric Marti |
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Title |
Architectural Floor Plan Analysis |
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Report |
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Year |
2000 |
Publication |
CVonline |
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Edimburg, UK |
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University of Edinburgh |
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Robert B. Fisher |
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online pdf |
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DAG;IAM |
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no |
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IAM @ iam @ LLM2000 |
Serial |
1561 |
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Author |
Onur Ferhat |
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Title |
Eye-Tracking with Webcam-Based Setups: Implementation of a Real-Time System and an Analysis of Factors Affecting Performance |
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Report |
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Year |
2012 |
Publication |
CVC Technical Report |
Abbreviated Journal |
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Volume |
172 |
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Keywords |
Computer vision, eye-tracking, gaussian process, feature selection, optical flow |
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Abstract |
In the recent years commercial eye-tracking hardware has become more common, with the introduction of new models from several brands that have better performance and easier setup procedures. A cause and at the same time a result of this phenomenon is the popularity of eye-tracking research directed at marketing, accessibility and usability, among others.
One problem with these hardware components is scalability, because both the price and the necessary expertise to operate them makes it practically impossible in the large scale. In this work, we analyze the feasibility of a software eye-tracking system based on a single, ordinary webcam. Our aim is to discover the limits of such a system and to see whether it provides acceptable performances.
The significance of this setup is that it is the most common setup found in consumer environments, off-the-shelf electronic devices such as laptops, mobile phones and tablet computers. As no special equipment such as infrared lights, mirrors or zoom lenses are used; setting up and calibrating the system is easier compared to other approaches using these components.
Our work is based on the open source application Opengazer, which provides a good starting point for our contributions. We propose several improvements in order to push the system's performance further and make it feasible as a robust, real-time device. Then we carry out an elaborate experiment involving 18 human subjects and 4 different system setups. Finally, we give an analysis of the results and discuss the effects of setup changes, subject differences and modifications in the software. |
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Address |
Bellaterra |
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Corporate Author |
Computer Vision Center |
Thesis |
Master's thesis |
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Editor |
Fernando Vilariño |
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MV |
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no |
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Call Number |
Admin @ si @ Fer2012; IAM @ iam @ Fer2012 |
Serial |
2165 |
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Author |
Eric Amiel |
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Title |
Visualisation de vaisseaux sanguins |
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Report |
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Year |
2005 |
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Rapport de Stage |
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Université Paul Sabatier Toulouse III |
Thesis |
Bachelor's thesis |
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Publisher |
Université Paul Sabatier Toulouse III |
Place of Publication |
Toulouse |
Editor |
Enric Marti |
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Language |
French |
Summary Language |
French |
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IUP Systèmes Intelligents |
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IAM |
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IAM @ iam @ Ami2005 |
Serial |
1690 |
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Author |
Joan M. Nuñez |
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Title |
Computer vision techniques for characterization of finger joints in X-ray image |
Type |
Report |
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Year |
2011 |
Publication |
CVC Technical Report |
Abbreviated Journal |
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Volume |
165 |
Issue |
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Keywords |
Rheumatoid arthritis, X-ray, Sharp Van der Heijde, joint characterization, sclerosis detection, bone detection, edge, ridge |
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Abstract |
Rheumatoid arthritis (RA) is an autoimmune inflammatory type of arthritis which mainly affects hands on its first stages. Though it is a chronic disease and there is no cure for it, treatments require an accurate assessment of illness evolution. Such assessment is based on evaluation of hand X-ray images by using one of the several available semi-quantitative methods. This task requires highly trained medical personnel. That is why the automation of the assessment would allow professionals to save time and effort. Two stages are involved in this task. Firstly, the joint detection, afterwards, the joint characterization. Unlike the little existing previous work, this contribution clearly separates those two stages and sets the foundations of a modular assessment system focusing on the characterization stage. A hand joint dataset is created and an accurate data analysis is achieved in order to identify relevant features. Since the sclerosis and the lower bone were decided to be the most important features, different computer vision techniques were used in order to develop a detector system for both of them. Joint space width measures are provided and their correlation with Sharp-Van der Heijde is verified |
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Address |
Bellaterra (Barcelona) |
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Corporate Author |
Computer Vision Center |
Thesis |
Master's thesis |
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Editor |
Dr. Fernando Vilariño and Dra. Debora Gil |
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MV;IAM; |
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no |
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Call Number |
IAM @ iam @ Nuñ2011 |
Serial |
1795 |
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Author |
Carles Sanchez |
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Title |
Tracheal ring detection in bronchoscopy |
Type |
Report |
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Year |
2011 |
Publication |
CVC Technical Report |
Abbreviated Journal |
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Volume |
168 |
Issue |
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Pages |
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Keywords |
Bronchoscopy, tracheal ring, segmentation |
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Abstract |
Endoscopy is the process in which a camera is introduced inside a human.
Given that endoscopy provides realistic images (in contrast to other modalities) and allows non-invase minimal intervention procedures (which can aid in diagnosis and surgical interventions), its use has spreaded during last decades.
In this project we will focus on bronchoscopic procedures, during which the camera is introduced through the trachea in order to have a diagnostic of the patient. The diagnostic interventions are focused on: degree of stenosis (reduction in tracheal area), prosthesis or early diagnosis of tumors. In the first case, assessment of the luminal area and the calculation of the diameters of the tracheal rings are required. A main limitation is that all the process is done by hand,
which means that the doctor takes all the measurements and decisions just by looking at the screen. As far as we know there is no computational framework for helping the doctors in the diagnosis.
This project will consist of analysing bronchoscopic videos in order to extract useful information for the diagnostic of the degree of stenosis. In particular we will focus on segmentation of the tracheal rings. As a result of this project several strategies (for detecting tracheal rings) had been implemented in order to compare their performance. |
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Master's thesis |
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Editor |
Debora Gil, F.Javier Sanchez |
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Language |
english |
Summary Language |
english |
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Notes |
IAM;MV |
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no |
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Call Number |
IAM @ iam @ San2011 |
Serial |
1841 |
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Author |
A. Martinez; Jordi Vitria |
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Title |
Learning mixture models with the EM algorithm and genetic algorithms |
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Report |
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Year |
1998 |
Publication |
CVC Technical Report #23 |
Abbreviated Journal |
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CVC (UAB) |
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Notes |
OR;MV |
Approved |
no |
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Call Number |
BCNPCL @ bcnpcl @ MaV1998a |
Serial |
8 |
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Author |
Oriol Pujol |
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Title |
Model-based three dimensional interpolation of IVUS images |
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Report |
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Year |
1999 |
Publication |
CVC Technical Report #27 |
Abbreviated Journal |
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CVC (UAB) |
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Notes |
HuPBA;MILAB |
Approved |
no |
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Call Number |
BCNPCL @ bcnpcl @ Puj1999 |
Serial |
49 |
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Author |
David Guillamet |
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Title |
Reconeixement d´objectes en entorns poc controlats mitjançant metodes estadistics |
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Report |
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Year |
1999 |
Publication |
CVC Technical Report #30 |
Abbreviated Journal |
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CVC (UAB) |
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Call Number |
Admin @ si @ Gui1999 |
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51 |
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Author |
Robert Benavente |
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Title |
Dealing with colour variability: application to a colour naming task |
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Report |
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1999 |
Publication |
CVC Technical Report #32 |
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CIC |
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no |
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Call Number |
CAT @ cat @ Ben1999 |
Serial |
53 |
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Author |
Jordi Vitria; Petia Radeva; X. Binefa; A. Pujol; Ernest Valveny; Robert Benavente; Craig Von Land |
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Title |
Real time recognition of pharmaceutical products by subspace methods |
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Report |
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Year |
1999 |
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CVC Technical Report #35 |
Abbreviated Journal |
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OR;MILAB;DAG;CIC;MV |
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no |
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Call Number |
BCNPCL @ bcnpcl @ VRB1999b |
Serial |
54 |
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Author |
A. Martinez; Jordi Vitria |
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Title |
Dimensionality reduction for face recognition |
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1996 |
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CVC Technical Report #16 |
Abbreviated Journal |
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OR;MV |
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no |
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BCNPCL @ bcnpcl @ MaV1996a |
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57 |
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Author |
Robert Benavente; Maria Vanrell |
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Title |
A colour naming experiment |
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2001 |
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CVC Technical Report #56 |
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CIC |
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CAT @ cat @ BeV2001 |
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78 |
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Author |
Josep Llados |
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Title |
Interpretacio de dibuixos linials fets a ma alçada mitjançant isomorfisme entre subgrafs i transformacio de Hough |
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1996 |
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CVC Technical Report #10 |
Abbreviated Journal |
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DAG |
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DAG @ dag @ Lla1996 |
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85 |
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Author |
Eva Costa |
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Title |
Localitzacio i seguiment de persones amb una camera amb Pan, Tilt i Zoom |
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Year |
2001 |
Publication |
CVC Technical Report #51 |
Abbreviated Journal |
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Admin @ si @ Cos2001 |
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87 |
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Author |
Jordi Vitria |
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Title |
Introduccio a la Morfologia Matematica |
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1996 |
Publication |
CVC Technical Report #06 |
Abbreviated Journal |
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OR;MV |
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no |
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Call Number |
BCNPCL @ bcnpcl @ Vit1996b |
Serial |
90 |
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