Multiresolution Cache Management for Distributed Satellite Image Databases Using NACSIS-Thai International Link

This paper deals with the network technology that will be useful for the development of distributed satellite image databases. In particular, the author proposes a new caching mechanism by combining multiresolution image representation into cache management mechanism. The author first analyzes access pattern to a satellite image database and demonstrates that many kinds of access skew can be well characterized by Zipf-like laws. These statistical properties will be integrated into the cache server specially designed for satellite images. The author then deals with multiresolution image representation, which enables flexible access to huge satellite data; a client can access to any part of the image with many resolution. Finally the author addresses some of the preliminary results on wavelet-based image representation based on multiresolution representation.