Image compression for fast wavelet-based subregion retrieval

In an image browsing environment there is need for progressively viewing im age subregions at various resolutions. We describe a storage scheme that ac complishes good image compression, while supporting fast image subregion re trieval. We evaluate analytically and experimentally the compression perfor mance of our algorithm. We also provide results on the speed of the algorit hm to demonstrate its effectiveness, and present an extension to a client/s erver environment. (C) 2000 Elsevier Science B.V. All rights reserved.