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Author (up) Gemma Rotger; Francesc Moreno-Noguer; Felipe Lumbreras; Antonio Agudo
Title Detailed 3D face reconstruction from a single RGB image Type Journal
Year 2019 Publication Journal of WSCG Abbreviated Journal JWSCG
Volume 27 Issue 2 Pages 103-112
Keywords 3D Wrinkle Reconstruction; Face Analysis, Optimization.
Abstract This paper introduces a method to obtain a detailed 3D reconstruction of facial skin from a single RGB image.
To this end, we propose the exclusive use of an input image without requiring any information about the observed material nor training data to model the wrinkle properties. They are detected and characterized directly from the image via a simple and effective parametric model, determining several features such as location, orientation, width, and height. With these ingredients, we propose to minimize a photometric error to retrieve the final detailed 3D map, which is initialized by current techniques based on deep learning. In contrast with other approaches, we only require estimating a depth parameter, making our approach fast and intuitive. Extensive experimental evaluation is presented in a wide variety of synthetic and real images, including different skin properties and facial
expressions. In all cases, our method outperforms the current approaches regarding 3D reconstruction accuracy, providing striking results for both large and fine wrinkles.
Address 2019/11
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Notes MSIAU; 600.086; 600.130; 600.122 Approved no
Call Number Admin @ si @ Serial 3708
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Author (up) Gemma Sanchez; Alicia Fornes; Joan Mas; Josep Llados
Title Computer Vision Tools for Visually Impaired Children Learning Type Journal
Year 2007 Publication Abbreviated Journal
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Notes DAG Approved no
Call Number DAG @ dag @ SFM2007a Serial 891
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Author (up) Gemma Sanchez; Alicia Fornes; Joan Mas; Josep Llados
Title Computer Vision Tools for Visually Impaired Children Learning Type Journal
Year 2007 Publication Abbreviated Journal
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Notes DAG Approved no
Call Number DAG @ dag @ SFM2007b Serial 892
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Author (up) Gemma Sanchez; Ernest Valveny; Josep Llados; Enric Marti; Oriol Ramos Terrades; N.Lozano; Joan Mas
Title A system for virtual prototyping of architectural projects Type Conference Article
Year 2003 Publication Proceedings of Fifth IAPR International Workshop on Pattern Recognition Abbreviated Journal
Volume Issue Pages 65-74
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Notes DAG;IAM Approved no
Call Number IAM @ iam @ SVL2003 Serial 1650
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Author (up) Gemma Sanchez; Ernest Valveny; Josep Llados; Joan Mas; N. Lozano
Title A platform to extract knowledge from graphic documents. Application to an architectural sketch understanding scenario Type Miscellaneous
Year 2004 Publication Document Analysis Systems VI, S. Marinai, A. Dengel (Eds.) Lecture Notes in Computer Science, 3163:389–400 Abbreviated Journal
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Address Springer-Verlag
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Notes DAG Approved no
Call Number DAG @ dag @ SVL2004 Serial 460
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Author (up) Gemma Sanchez; Josep Llados
Title A Graph Grammar to Recognize Textured Symbols. Type Miscellaneous
Year 2001 Publication Sixth International Conference on Document Analysis and Recognition, ICDAR 2001, 465–469. Abbreviated Journal
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Address USA
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Notes DAG Approved no
Call Number DAG @ dag @ SLl2001 Serial 162
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Author (up) Gemma Sanchez; Josep Llados
Title Syntactic models to represent perceptually regular repetitive patterns in graphic documents Type Miscellaneous
Year 2003 Publication Proceedings of Fifth IAPR International Workshop on Graphics Recognition, 194–201 Abbreviated Journal
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Address Barcelona
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Notes DAG Approved no
Call Number DAG @ dag @ SaL2003 Serial 417
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Author (up) Gemma Sanchez; Josep Llados
Title Syntactic models to represent perceptually regular repetitive patterns in graphic documents Type Miscellaneous
Year 2004 Publication Graphics Recognition: Recent Advances and Perspectives, Lecture Notes in Computer Science, J. Llados, Y.B. Kwon (Eds.), 3088:162–171 Abbreviated Journal
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Address Springer-Verlag
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Notes DAG Approved no
Call Number DAG @ dag @ SaL2004 Serial 462
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Author (up) Gemma Sanchez; Josep Llados; Enric Marti
Title A string-based method to recognize symbols and structural textures in architectural plans Type Conference Article
Year 1997 Publication 2nd IAPR Workshop on Graphics Recognition Abbreviated Journal
Volume Issue Pages
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Abstract This paper deals with the recognition of symbols and struc- tural textures in architectural plans using string matching techniques. A plan is represented by an attributed graph whose nodes represent characteristic points and whose edges represent segments. Symbols and textures can be seen as a set of regions, i.e. closed loops in the graph, with a particular arrangement. The search for a symbol involves a graph matching between the regions of a model graph and the regions of the graph representing the document. Discriminating a texture means a clus- tering of neighbouring regions of this graph. Both procedures involve a similarity measure between graph regions. A string codification is used to represent the sequence of outlining edges of a region. Thus, the simila- rity between two regions is defined in terms of the string edit distance between their boundary strings. The use of string matching allows the recognition method to work also under presence of distortion.
Address Nancy, France
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Notes DAG; IAM Approved no
Call Number IAM @ iam @ SLE1997 Serial 1498
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Author (up) Gemma Sanchez; Josep Llados; Enric Marti
Title Segmentation and analysis of linial texture in plans Type Conference Article
Year 1997 Publication Intelligence Artificielle et Complexité. Abbreviated Journal
Volume Issue Pages
Keywords Structural Texture, Voronoi, Hierarchical Clustering, String Matching.
Abstract The problem of texture segmentation and interpretation is one of the main concerns in the field of document analysis. Graphical documents often contain areas characterized by a structural texture whose recognition allows both the document understanding, and its storage in a more compact way. In this work, we focus on structural linial textures of regular repetition contained in plan documents. Starting from an atributed graph which represents the vectorized input image, we develop a method to segment textured areas and recognize their placement rules. We wish to emphasize that the searched textures do not follow a predefined pattern. Minimal closed loops of the input graph are computed, and then hierarchically clustered. In this hierarchical clustering, a distance function between two closed loops is defined in terms of their areas difference and boundary resemblance computed by a string matching procedure. Finally it is noted that, when the texture consists of isolated primitive elements, the same method can be used after computing a Voronoi Tesselation of the input graph.
Address Paris, France
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Publisher Place of Publication Paris Editor
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Area Expedition Conference AERFAI
Notes DAG;IAM; Approved no
Call Number IAM @ iam @ SLM1997 Serial 1649
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Author (up) Gemma Sanchez; Josep Llados; K. Tombre
Title An Algorithm to Recognize Graphical Textured Symbols using String Representations. Type Miscellaneous
Year 2001 Publication Proceedings of the IX Spanish Symposium on Pattern Recognition and Image Analysis, :203–208. Abbreviated Journal
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Notes DAG Approved no
Call Number DAG @ dag @ SLT2001a Serial 163
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Author (up) Gemma Sanchez; Josep Llados; K. Tombre
Title An Error-Correction Graph Grammar to Recognize Textured Symbols. Type Miscellaneous
Year 2001 Publication Fourth IAPR International Workshop on Graphics Recognition, GREC 2001, 135–146. Abbreviated Journal
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Address Canada
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Notes DAG Approved no
Call Number DAG @ dag @ SLT2001b Serial 164
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Author (up) Gemma Sanchez; Josep Llados; K. Tombre
Title A mean string algorithm to compute the average among a set of 2D shapes Type Journal Article
Year 2002 Publication Pattern Recognition Letters Abbreviated Journal PRL
Volume 23 Issue 1-3 Pages 203–214
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Notes DAG; IF: 0.409 Approved no
Call Number DAG @ dag @ SLT2002 Serial 275
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Author (up) Gemma Sanchez; Josep Llados; K. Tombre
Title A mean string algorithm to compute the average among a set of 2D shapes Type Report
Year 2000 Publication CVC Technical Report #38 Abbreviated Journal
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Address CVC (UAB)
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Notes DAG Approved no
Call Number DAG @ dag @ SLT2000 Serial 350
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Author (up) Georg Langs; Petia Radeva; David Rotger; Francesc Carreras
Title Building and Registering Parameterized 3D Models of Vessel Trees for Visualization during Intervention Type Miscellaneous
Year 2004 Publication 17th International Conference on Pattern Recognition, ICPR’04 Abbreviated Journal
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Address Cambridge, United Kingdom
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Notes MILAB Approved no
Call Number BCNPCL @ bcnpcl @ LRR2004b Serial 463
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