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Displaying 1-16 out of 16 total
Class-Based Color Bag of Words for Fashion Retrieval
Found in: 2012 IEEE International Conference on Multimedia and Expo (ICME)
By Costantino Grana,Daniele Borghesani,Rita Cucchiara
Issue Date:July 2012
pp. 444-449
Color signatures, histograms and bag of colors are basic and effective strategies for describing the color content of images, for retrieving images by their color appearance or providing color annotation. In some domains, colors assume a specific meaning f...
 
Decision Trees for Fast Thinning Algorithms
Found in: Pattern Recognition, International Conference on
By Costantino Grana, Daniele Borghesani, Rita Cucchiara
Issue Date:August 2010
pp. 2836-2839
We propose a new efficient approach for neighborhood exploration, optimized with decision tables and decision trees, suitable for local algorithms in image processing. In this work, it is employed to speed up two widely used thinning techniques. The perfor...
 
High Performance Connected Components Labeling on FPGA
Found in: Database and Expert Systems Applications, International Workshop on
By Costantino Grana, Daniele Borghesani, Paolo Santinelli, Rita Cucchiara
Issue Date:September 2010
pp. 221-225
This paper proposes a comparison of the two most advanced algorithms for connected components labeling, highlighting how they perform on a soft core SoC architecture based on FPGA. In particular we test our block based connected components labeling algorit...
 
Dynamic Pictorially Enriched Ontologies for Digital Video Libraries
Found in: IEEE Multimedia
By Marco Bertini, Alberto Del Bimbo, Giuseppe Serra, Carlo Torniai, Rita Cucchiara, Costantino Grana, Roberto Vezzani
Issue Date:April 2009
pp. 42-51
<p>This article presents a framework for automatic semantic annotation of video streams with an ontology that includes concepts expressed using linguistic terms and visual data.</p>
 
A Semi-Automatic Video Annotation tool with MPEG-7 Content Collections
Found in: Multimedia, International Symposium on
By Roberto Vezzani, Costantino Grana, Daniele Bulgarelli, Rita Cucchiara
Issue Date:December 2006
pp. 742-745
In this work, we present a general purpose system for hierarchical structural segmentation and automatic annotation of video clips, by means of standardized low level features. We propose to automatically extract some prototypes for each class with a conte...
 
Line Detection and Texture Characterization of Network Patterns
Found in: Pattern Recognition, International Conference on
By Costantino Grana, Rita Cucchiara, Giovanni Pellacani, Stefania Seidenari
Issue Date:August 2006
pp. 275-278
This paper describes a complete approach to detect, localize and describe network patterns. Such texture is automatically detected with Gaussian derivative kernels and Fisher linear discriminant analysis; line closure and thinning is provided by morphologi...
 
MPEG-7 Compliant Shot Detection in Sport Videos
Found in: Multimedia, International Symposium on
By Costantino Grana, Giovanni Tardini, Rita Cucchiara
Issue Date:December 2005
pp. 395-402
In this paper we propose a system for automatic detection of shots in sport videos. Our work covers two main aspects: the first is robust shot detection in presence of fast object motion and camera operations. To this aim we propose a new algorithm, unique...
 
Detecting Moving Objects, Ghosts, and Shadows in Video Streams
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Rita Cucchiara, Costantino Grana, Massimo Piccardi, Andrea Prati
Issue Date:October 2003
pp. 1337-1342
<p><b>Abstract</b>—Background subtraction methods are widely exploited for moving object detection in videos in many applications, such as traffic monitoring, human motion capture, and video surveillance. How to correctly and efficiently ...
 
Modeling local descriptors with multivariate gaussians for object and scene recognition
Found in: Proceedings of the 21st ACM international conference on Multimedia (MM '13)
By Rita Cucchiara, Costantino Grana, Giuseppe Serra, Marco Manfredi
Issue Date:October 2013
pp. 709-712
Common techniques represent images by quantizing local descriptors and summarizing their distribution in a histogram. In this paper we propose to employ a parametric description and compare its capabilities to histogram based approaches. We use the multiva...
     
Rerum novarum: interactive exploration of illuminated manuscripts
Found in: Proceedings of the international conference on Multimedia (MM '10)
By Costantino Grana, Daniele Borghesani, Rita Cucchiara
Issue Date:October 2010
pp. 1621-1624
This paper describes an interactive application for the exploration and annotation of illuminated manuscripts, which typically contain thousands of pictures, used to comment or embellish the manuscript Gothic text. The system is composed by a modern user i...
     
Surfing on artistic documents with visually assisted tagging
Found in: Proceedings of the international conference on Multimedia (MM '10)
By Costantino Grana, Daniele Borghesani, Rita Cucchiara
Issue Date:October 2010
pp. 1343-1352
This paper describes a complete architecture for the interactive exploration and annotation of artistic collections. In particular the focus is on Renaissance illuminated manuscripts, which typically contain thousands of pictures, used to comment or embell...
     
Picture extraction from digitized historical manuscripts
Found in: Proceeding of the ACM International Conference on Image and Video Retrieval (CIVR '09)
By Costantino Grana, Daniele Borghesani, Rita Cucchiara
Issue Date:July 2009
pp. 1-8
In this work we propose a system for automatic document segmentation to extract graphical elements from historical manuscripts and then to identify significant pictures from them, removing floral and abstract decorations. The system performs a block based ...
     
"Inside the bible": segmentation, annotation and retrieval for a new browsing experience
Found in: Proceeding of the 1st ACM international conference on Multimedia information retrieval (MIR '08)
By Costantino Grana, Daniele Borghesani, Rita Cucchiara, Simone Calderara
Issue Date:October 2008
pp. 1-1
In this paper we present a system for automatic segmentation, annotation and image retrieval based on content, focused on illuminated manuscripts and in particular the Borso D'Este Holy Bible. To enhance the interaction possibilities with this work, full o...
     
Enhancing HSV histograms with achromatic points detection for video retrieval
Found in: Proceedings of the 6th ACM international conference on Image and video retrieval (CIVR '07)
By Costantino Grana, Rita Cucchiara, Roberto Vezzani
Issue Date:July 2007
pp. 302-308
Color is one of the most meaningful features used in content based retrieval of visual data. In video content based retrieval, color features computed on selected frames are integrated with other low-level features concerning texture, shape and motion in o...
     
MOM: multimedia ontology manager. A framework for automatic annotation and semantic retrieval of video sequences
Found in: Proceedings of the 14th annual ACM international conference on Multimedia (MULTIMEDIA '06)
By Alberto Del Bimbo, Carlo Torniai, Costantino Grana, Marco Bertini, Rita Cucchiara
Issue Date:October 2006
pp. 787-788
Effective usage of multimedia digital libraries has to deal with the problem of building efficient content annotation and retrieval tools. MOM (Multimedia Ontology Manager) is a complete system that allows the creation of multimedia ontologies, supports au...
     
Semantic transcoding for live video server
Found in: Proceedings of the tenth ACM international conference on Multimedia (MULTIMEDIA '02)
By Andrea Prati, Costantino Grana, Rita Cucchiara
Issue Date:December 2002
pp. 223-226
In this paper we present transcoding techniques for a video server architecture that enables the user to access live video streams by using different devices with different capabilities. For live videos, annotation methods cannot be exploited. Instead we p...
     
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