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Author |
David Aldavert |
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Title |
Visual Simultaneous Localization and Mapping |
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2006 |
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CVC Technical Report #98 |
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ADAS |
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Admin @ si @ Ald2006 |
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736 |
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Author |
David Geronimo |
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Title |
Model Features and Horizon Line Estimation for Pedestrian Detection in Advanced Driver Assistance Systems |
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2006 |
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CVC Technical Report #98 |
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Master's thesis |
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ADAS @ adas @ Ger2006 |
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737 |
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Author |
Fernando Vilariño |
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Title |
A Machine Learning Approach for Intestinal Motility Assessment with Capsule Endoscopy |
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2006 |
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PhD Thesis, Universitat Autonoma de Barcelona-CVC |
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Abstract |
Intestinal motility assessment with video capsule endoscopy arises as a novel and challenging clinical fieldwork. This technique is based on the analysis of the patterns of intestinal contractions obtained by labelling all the motility events present in a video provided by a capsule with a wireless micro-camera, which is ingested by the patient. However, the visual analysis of these video sequences presents several im- portant drawbacks, mainly related to both the large amount of time needed for the visualization process, and the low prevalence of intestinal contractions in video.
In this work we propose a machine learning system to automatically detect the intestinal contractions in video capsule endoscopy, driving a very useful but not fea- sible clinical routine into a feasible clinical procedure. Our proposal is divided into two different parts: The first part tackles the problem of the automatic detection of phasic contractions in capsule endoscopy videos. Phasic contractions are dynamic events spanning about 4-5 seconds, which show visual patterns with a high variability. Our proposal is based on a sequential design which involves the analysis of textural, color and blob features with powerful classifiers such as SVM. This approach appears to cope with two basic aims: the reduction of the imbalance rate of the data set, and the modular construction of the system, which adds the capability of including domain knowledge as new stages in the cascade. The second part of the current work tackles the problem of the automatic detection of tonic contractions. Tonic contrac- tions manifest in capsule endoscopy as a sustained pattern of the folds and wrinkles of the intestine, which may be prolonged for an undetermined span of time. Our proposal is based on the analysis of the wrinkle patterns, presenting a comparative study of diverse features and classification methods, and providing a set of appro- priate descriptors for their characterization. We provide a detailed analysis of the performance achieved by our system both in a qualitative and a quantitative way. |
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CVC (UAB) |
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Ph.D. thesis |
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Petia Radeva |
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84-933652-7-0 |
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800 |
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MV;SIAI |
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Admin @ si @ Vil2006; IAM @ iam @ Vil2006 |
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738 |
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Author |
Dani Rowe |
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Title |
Towards Robust Multiple-People Tracking in Unconstrained Environments |
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2007 |
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CVC Technical Report #100 |
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Admin @ si @ Row2007 |
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765 |
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Author |
Pau Baiget |
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Title |
Interpretation of Human Behavior in Image Sequences |
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2007 |
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CVC Technical Report #102 |
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Admin @ si @ Bai2007 |
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816 |
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Author |
Carles Fernandez |
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Title |
Natural Language for Human Behavior Evaluation in Video Sequences |
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2007 |
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CVC Technical Report #101 |
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Admin @ si @ Fer2007 |
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817 |
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Author |
Francisco Javier Orozco |
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Title |
Face Detection and Tracking for Facial Expression Analysis |
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2007 |
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CVC Technical Report #103 |
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Admin @ si @ Oro2007 |
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818 |
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Author |
Partha Pratim Roy |
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Title |
An Approach to Text/Graphics Separation in Color Maps |
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2007 |
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CVC Technical Report #104 |
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Admin @ si @ Roy2007 |
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819 |
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Author |
Jose Manuel Alvarez |
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On-Board Road Surface Segmentation |
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2007 |
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CVC Technical Report #108 |
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Admin @ si @ Alv2007 |
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820 |
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Joel Barajas |
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Spectral Rigid Registration of Medical Images: Application to Tagged MRI and IVUS |
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2007 |
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CVC Technical Report #106 |
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Admin @ si @ Bar2007 |
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821 |
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Author |
Karla Lizbeth Caballero |
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Coronary Plaque Classification using Intravascular Ultrasound Images and Radio Frequency Signals |
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2007 |
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CVC Technical Report #105 |
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Admin @ si @ Cab2007 |
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822 |
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Author |
Eduard Vazquez |
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Title |
Distribution Characterization using Topological Features. Application to Colour Image Processing |
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2007 |
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CVC Technical Report #107 |
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Admin @ si @ Vaz2007a |
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823 |
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Author |
Ariel Amato |
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Title |
Multiple Camera Calibration for Trajectories Tracking |
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2007 |
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CVC Technical Report #112 |
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Admin @ si @ Ama2007a |
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824 |
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Author |
Ferran Diego |
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Alignment of Videos Recorded from Moving Vehicles |
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2007 |
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CVC Technical Report #111 |
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Admin @ si @ DiS2007 |
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825 |
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Author |
Santiago Segui |
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A Sparse Bayesian Approach for Joint Feature Selection and Classifier Learning |
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2007 |
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CVC Technical Report #113 |
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Admin @ si @ Seg2007 |
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