The trial of DISIT for Content Based Information Retrieval allows you to test the usage of different CBIR algorithms (selecting them from the list box that appears on the left side, once you selected the first image from the entry page) in finding similarities and thus in producing recommendations among images, video, documents, animations, and thus among CROSS MEDIA coming from ECLAP service and archive (Http://www.eclap.eu).
The demonstrator is going to compare against those presented other recommendations systems that you can find from ECLAP itself and which are presently based on text analysis. The full data set presently consists of about 100.000 objects coming from: images, documents and video cross media objects of ECLAP. The indexing model adopted an accelerator that allows you to obain the similar objects in a very fast manner and can scale up to millions of content items.
click here to GO at the DEMONSTRATOR
The algorithms used in this phase are mainly:
- Auto Color Correlogram: Huang, J.; Kumar, S. R.; Mitra, M.; Zhu, W. & Zabih, R. (2007) "Image Indexing Using Color Correlograms", IEEE Computer Society http://doi.ieeecomputersociety.org/10.1109/CVPR.1997.609412
- CEDD: Savvas A. Chatzichristofis and Yiannis S. Boutalis, "CEDD: Color and Edge Directivity Descriptor. A Compact Descriptor for Image Indexing and Retrieval", A. Gasteratos, M. Vincze, and J.K. Tsotsos (Eds.): ICVS 2008, LNCS 5008, pp. 312-322, 2008.
- FCTH: Savvas A. Chatzichristofis and Yiannis S. Boutalis, "FCTH: Fuzzy Color and Texture Histogram - A Low Level Feature for Accurate Image Retrieval", in Proceedings of the Ninth International Workshop on Image Analysis for Multimedia Interactive Services, IEEE, Klagenfurt, May, 2008.
- Gabor: http://en.wikipedia.org/wiki/Gabor_filter
- JCD: (CEDD + FCTH)
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Jpeg Coefficients Histogram:
http://www.sciencedirect.com/science/article/pii/S0031320301001820 - Simple Color Histogram: http://en.wikipedia.org/wiki/Color_histogram
- Tamura: Deselaers T. et al., "Features for Image Retrieval: An Experimental Comparison", German Research Center for Artificial Intelligence (DFKI), Kaiserslautern, Germany, 2007
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Color Layout, Edge Histogram, Scalable Color (MPEG-7):
http://en.wikipedia.org/wiki/Visual_descriptors