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IAF Calls & Action Lines
A tool for pictorial contents retrieval
(Zdenek Mikovec, Czech Technical University)
As the complexity of pictures increases and the need for more detailed information about individual images is steadily increasing, it is necessary to use new type of information for picture description. This sort of information usually includes description of relations among various objects in the picture. These relations may have different forms and meanings beginning from purely geometric relations (like an object is below another object) and ending up with relations that have semantic character (like a person talks to another person).
Both types of information might be in general linked up in various manners. This fact requires an easy switching from one type of relations to another type of relations. Another important topic is the possibility to filter out the information that is not relevant in a given context. This feature would ease the browsing in a picture as the number of relations could be limited by means of a proper filter. In principle the filtering process could be interpreted as a data transformation process. The need for data transformation is more general in picture databases. The solution to this problem is highly influenced by the implementation tool used.
The tool that has all features necessary is XML where data transformations could be easily specified by means of XSL transformation sheets. We have implemented an experimental system for picture description creation, filtering and browsing based on these standards (XML, XSL).
Due to the generality of XSL it is possible to describe the querying process in various stages of data transformation (e.g. picture data input, internal data transformations, picture data output). It is also possible to define the way the query results are visualized.
- Presentation slides
- e-mail: xmikovec@fel.cvut.cz
- URL: http://www.cgg.cvut.cz/, http://www.cgg.cvut.cz/Research/bis
- Other contact: Pavel Slavik, slavik@cs.felk.cvut.cz