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Author Angel Sappa; Rosa Herrero; Fadi Dornaika; David Geronimo; Antonio Lopez
Title Road Approximation in Euclidean and v-Disparity Space: A Comparative Study Type Conference Article
Year 2007 Publication Computer Aided Systems Theory, Abbreviated Journal
Volume 4739 Issue Pages (up) 1105–1112
Keywords
Abstract This paper presents a comparative study between two road approximation techniques—planar surfaces—from stereo vision data. The first approach is carried out in the v-disparity space and is based on a voting scheme, the Hough transform. The second one consists in computing the best fitting plane for the whole 3D road data points, directly in the Euclidean space, by using least squares fitting. The comparative study is initially performed over a set of different synthetic surfaces
(e.g., plane, quadratic surface, cubic surface) digitized by a virtual stereo head; then real data obtained with a commercial stereo head are used. The comparative study is intended to be used as a criterion for fining the best technique according to the road geometry. Additionally, it highlights common problems driven from a wrong assumption about the scene’s prior knowledge.
Address Las Palmas de Gran Canaria (Spain)
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title LNCS
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference EUROCAST
Notes ADAS Approved no
Call Number ADAS @ adas @ SHD2007b Serial 917
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Author Angel Sappa; Fadi Dornaika; David Geronimo; Antonio Lopez
Title Efficient On-Board Stereo Vision Pose Estimation Type Conference Article
Year 2007 Publication Computer Aided Systems Theory, Selected paper from Abbreviated Journal
Volume 4739 Issue Pages (up) 1183–1190
Keywords
Abstract This paper presents an efficient technique for real time estimation of on-board stereo vision system pose. The whole process is performed in the Euclidean space and consists of two stages. Initially, a compact representation of the original 3D data points is computed. Then, a RANSAC based least squares approach is used for fitting a plane to the 3D road points. Fast RANSAC fitting is obtained by selecting points according to a probability distribution function that takes into account the density of points at a given depth. Finally, stereo camera position
and orientation—pose—is computed relative to the road plane. The proposed technique is intended to be used on driver assistance systems for applications such as obstacle or pedestrian detection. A real time performance is reached. Experimental results on several environments and comparisons with a previous work are presented.
Address Las Palmas de Gran Canaria (Spain)
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title LNCS
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference EUROCAST
Notes ADAS Approved no
Call Number ADAS @ adas @ SDG2007b Serial 916
Permanent link to this record
 
 
Author Elvina Motard; Bogdan Raducanu; Viviane Cadenat; Jordi Vitria
Title Incremental On-Line Topological Map Learning for A Visual Homing Application Type Conference Article
Year 2007 Publication IEEE International Conference on Robotics and Automation Abbreviated Journal
Volume Issue Pages (up) 2049–2054
Keywords
Abstract
Address Roma (Italy)
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference ICRA
Notes OR; MV Approved no
Call Number BCNPCL @ bcnpcl @ MRC2007 Serial 793
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Author Fadi Dornaika; Angel Sappa
Title Rigid and Non-rigid Face Motion Tracking by Aligning Texture Maps and Stereo 3D Models Type Journal Article
Year 2007 Publication Pattern Recognition Letters Abbreviated Journal PRL
Volume 28 Issue 15 Pages (up) 2116-2126
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Abstract
Address
Corporate Author Thesis
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN ISBN Medium
Area Expedition Conference
Notes ADAS Approved no
Call Number ADAS @ adas @ DoS2007c Serial 877
Permanent link to this record
 
 
Author Karla Lizbeth Caballero; Joel Barajas; Petia Radeva
Title Using Reconstructed IVUS Images for Coronary Plaque Classification Type Conference Article
Year 2007 Publication Engineering in Medicine and Biology Society, 29th Annual International Conference of the IEEE Abbreviated Journal
Volume Issue Pages (up) 2167–2170
Keywords
Abstract
Address Lyon (France)
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes MILAB Approved no
Call Number BCNPCL @ bcnpcl @ CBR2007 Serial 925
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Author Aura Hernandez-Sabate; Debora Gil; Albert Teis
Title How Do Conservation Laws Define a Motion Suppression Score in In-Vivo Ivus Sequences? Type Conference Article
Year 2007 Publication Proc. IEEE Ultrasonics Symp Abbreviated Journal
Volume Issue Pages (up) 2231-2234
Keywords validation standards; IVUS motion compensation; conservation laws.
Abstract Evaluation of arterial tissue biomechanics for diagnosis and treatment of cardiovascular diseases is an active research field in the biomedical imaging processing area. IntraVascular UltraSound (IVUS) is a unique tool for such assessment since it reflects tissue morphology and deformation. A proper quantification and visualization of both properties is hindered by vessel structures misalignments introduced by cardiac dynamics. This has encouraged development of IVUS motion compensation techniques. However, there is a lack of an objective evaluation of motion reduction ensuring a reliable clinical application This work reports a novel score, the Conservation of Density Rate (CDR), for validation of motion compensation in in-vivo pullbacks. Synthetic experiments validate the proposed score as measure of motion parameters accuracy; while results in in vivo pullbacks show its reliability in clinical cases.
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Area Expedition Conference
Notes IAM Approved no
Call Number IAM @ iam @ HTG2007 Serial 1550
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Author Hugo Berti; Angel Sappa; Osvaldo Agamennoni
Title Autonomous robot navigation with a global and asymptotic convergence Type Conference Article
Year 2007 Publication IEEE International Conference on Robotics and Automation Abbreviated Journal
Volume Issue Pages (up) 2712–2717
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Abstract
Address Roma (Italy)
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference ICRA
Notes ADAS Approved no
Call Number ADAS @ adas @ BSA2007 Serial 796
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Author Joan Marti; Jose Miguel Benedi; Ana Maria Mendonça; Joan Serrat
Title Pattern Recognition and Image Analysis Type Book Whole
Year 2007 Publication 3rd Iberian Conference Abbreviated Journal
Volume 6669 Issue Pages (up) 4477-4478
Keywords
Abstract
Address Girona (Spain)
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title LNCS
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference IbPRIA
Notes ADAS Approved no
Call Number ADAS @ adas @ MBM2007 Serial 994
Permanent link to this record