In: Wagner W., Székely, B. (eds.): ISPRS TC VII Symposium - 100 Years ISPRS, Vienna, Austria, July 5-7, 2010, IAPRS, Voi. XXXVIII, Part 7B
5. CONCLUSION
The amount of imagery data increases rapidly, mainly due to
the launching of new generation of high resolution satellites
(WorldView-1, TerraSAR-X, WorldView-2).
Multiple terabytes of HRSIDB are being collected by many
nations across the globe. This raises the question how to
retrieve, manage and make best use of the HRSIDB
information.
Content-based analysis of all high resolution imagery is a
seriously limited by time constraints, and a solution for the
content-based image retrieval problem is urgently needed.
Also, a new framework is lacking to support content-based
search and different levels of analysis and generalization.
Our research proposes a model for homogeneous pattern sketch.
The model allows to discern visually meaningful content of a
textural pattern. It helps to overcome distinctions between the
classes of GUMs in terms of their visual representation.
The experiments show the model parameters’ flexibility and the
capacity of training and self-training.
(b)
Figure 2.0utlining results of homogeneous region of Ikonos-
image (lm): (a) - according to model (1), (b) - manual.
Most importantly, this model can be used for automated
generation of interpretation results and metadata, and it offers
sufficient computational efficiency to support the formalization
of ecological expertise and global-environmental-databases.
(b)
Figure 1. Outlining homogeneous region of Quickbird-image
(0,7m): (a) - according to model (1), (b) - manual..
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