Compression of image clusters using Karhunen Loeve transformations. [Proceedings of SPIE 6492, 64920G (2007)]. Matthias Kramm.
Image Cluster Compression using Texture Databases. [Proceedings of SPIE 6806, 680613 (2008)]. Matthias Kramm.
Image Cluster Compression using Partitioned Iterated Function Systems and effici Inter-Image Similarity Features. [SITIS 2007] Matthias Kramm
Compression of large image databases using similarity clustering (Ph.D. thesis, in German)