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Author |
Aura Hernandez-Sabate; Debora Gil; Albert Teis |
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Title |
How Do Conservation Laws Define a Motion Suppression Score in In-Vivo Ivus Sequences? |
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Conference Article |
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2007 |
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Proc. IEEE Ultrasonics Symp |
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2231-2234 |
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validation standards; IVUS motion compensation; conservation laws. |
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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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IAM |
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IAM @ iam @ HTG2007 |
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1550 |
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Author |
Fadi Dornaika; Angel Sappa |
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Title |
Rigid and Non-rigid Face Motion Tracking by Aligning Texture Maps and Stereo 3D Models |
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Journal Article |
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2007 |
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Pattern Recognition Letters |
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PRL |
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28 |
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15 |
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2116-2126 |
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ADAS |
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ADAS @ adas @ DoS2007c |
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877 |
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Author |
Debora Gil; Oriol Rodriguez-Leor; Petia Radeva; Aura Hernandez-Sabate |
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Title |
Assessing Artery Motion Compensation in IVUS |
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Book Chapter |
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Year |
2007 |
Publication |
Computer Analysis Of Images And Patterns |
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LNCS |
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4673 |
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213-220 |
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validation standards; quality measures; IVUS motion compensation; conservation laws; Fourier development |
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Cardiac dynamics suppression is a main issue for visual improvement and computation of tissue mechanical properties in IntraVascular UltraSound (IVUS). Although in recent times several motion compensation techniques have arisen, there is a lack of objective evaluation of motion reduction in in vivo pullbacks. We consider that the assessment protocol deserves special attention for the sake of a clinical applicability as reliable as possible. Our work focuses on defining a quality measure and a validation protocol assessing IVUS motion compensation. On the grounds of continuum mechanics laws we introduce a novel score measuring motion reduction in in vivo sequences. 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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Springerlink |
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Heidelberg |
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Lecture Notes in Computer Science |
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978-3-540-74271-5 |
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IAM;MILAB |
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IAM @ iam @ GRR2007 |
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1540 |
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Author |
Agnes Borras; Josep Llados |
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Title |
Similarity-Based Object Retrieval Using Appearance and Geometric Feature Combination |
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Book Chapter |
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2007 |
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3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4477:113–120 |
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LNCS |
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4478 |
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33–39 |
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This work presents a content-based image retrieval system of general purpose that deals with cluttered scenes containing a given query object. The system is flexible enough to handle with a single image of an object despite its rotation, translation and scale variations. The image content is divided in parts that are described with a combination of features based on geometrical and color properties. The idea behind the feature combination is to benefit from a fuzzy similarity computation that provides robustness and tolerance to the retrieval process. The features can be independently computed and the image parts can be easily indexed by using a table structure on every feature value. Finally a process inspired in the alignment strategies is used to check the coherence of the object parts found in a scene. Our work presents a system of easy implementation that uses an open set of features and can suit a wide variety of applications. |
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Girona (Spain) |
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978-3-540-72848-1 |
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DAG; |
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DAG @ dag @ BoL2007a; IAM @ iam @ BoL2007a |
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776 |
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Author |
Dani Rowe |
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Title |
Towards Robust Multiple-People Tracking in Unconstrained Environments |
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Report |
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2007 |
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CVC Technical Report #100 |
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CVC (UAB) |
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Admin @ si @ Row2007 |
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765 |
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Author |
Francisco Javier Orozco; F.A. Garcia; J.L. Arcos; Jordi Gonzalez |
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Title |
Spatio-Temporal Reasoning for Reliable Facial Expression Interpretation |
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Conference Article |
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2007 |
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Proceedings of the 5th International Conference on Computer Vision Systems |
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Bielefeld University (Germany) |
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ICVS |
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ISE |
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ISE @ ise @ OGA2007 |
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772 |
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Author |
Francisco Javier Orozco; Jordi Gonzalez; Ignasi Rius; Xavier Roca |
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Title |
Hierarchical Eyelid and Face Tracking |
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2007 |
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3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4477:499–506 |
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Girona (Spain) |
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ISE @ ise @ OGR2007 |
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773 |
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Author |
Alicia Fornes; Sergio Escalera; Josep Llados; Gemma Sanchez; Petia Radeva; Oriol Pujol |
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Title |
Handwritten Symbol Recognition by a Boosted Blurred Shape Model with Error Correction |
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Book Chapter |
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2007 |
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3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4477:13–21 |
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Girona (Spain) |
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MILAB;DAG;HUPBA |
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no |
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BCNPCL @ bcnpcl @ FEL2007a |
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775 |
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Author |
Jose Antonio Rodriguez; Gemma Sanchez; Josep Llados |
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Title |
Rejection strategies involving classifier combination for handwriting recognition |
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2007 |
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3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4478:97–104 |
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Girona (Spain) |
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DAG @ dag @ RSL2007a |
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777 |
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Author |
Marçal Rusiñol; Philippe Dosch; Josep Llados |
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Title |
Boundary Shape Recognition Using Accumulated Length and Angle Information |
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2007 |
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3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4478:210–217 |
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Girona (Spain) |
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DAG @ dag @ RDL2007 |
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778 |
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Josep Llados; Partha Pratim Roy; Jose Antonio Rodriguez; Gemma Sanchez |
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Title |
Word Spotting in Archive Documents using Shape Contexts |
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2007 |
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3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4478:290–297 |
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Girona (Spain) |
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DAG @ dag @ LRR2007 |
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779 |
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Josep Llados; Dorothea Blostein |
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Special Issue on Graphics Recognition |
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2007 |
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International Journal on Document Analysis and Recognition |
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IJDAR |
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9 |
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1 |
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1–2 |
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DAG @ dag @ LlB2007 |
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781 |
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Author |
Dani Rowe; Ivan Huerta; Jordi Gonzalez; Juan J. Villanueva |
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Title |
Robust Multiple-People Tracking Using Colour-Based Particle Filters |
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Book Chapter |
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2007 |
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3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4477:113–120 |
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Girona (Spain) |
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ISE @ ise @ RHG2007 |
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782 |
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Author |
Ivan Huerta; Dani Rowe; Mikhail Mozerov; Jordi Gonzalez |
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Title |
Improving Background Subtraction based on a Casuistry of Colour-Motion Segmentation Problems |
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2007 |
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3rd Iberian Conference on Pattern Recognition and Image Analysis (IbPRIA 2007), J. Marti et al. (Eds.) LNCS 4478:475–482 |
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Girona (Spain) |
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ISE @ ise @ HRM2007 |
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783 |
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Dani Rowe; Jordi Gonzalez; Ivan Huerta; Juan J. Villanueva |
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Title |
On Reasoning over Tracking Events |
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2007 |
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15th Scandinavian Conference on Image Analysis |
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4522 |
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502–511 |
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Aalborg (Denmark) |
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SCIA´07 |
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ISE @ ise @ RGH2007 |
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784 |
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