New technology for raster document image compression
Kai-Uwe Barthel, Simon McPartlin, Michael Thierschmann · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1999
This paper describes in detail the LuraDocument technique, a recently developed, high performance technique for compressing and archiving scanned documents, particularly those containing text and image. LuraDocument offers higher compression rates and quality in comparison to traditional document compression methods, preserving text legibility even at extremely high compression rates. This various stages of LuraDocument compression are described in detail, including image quantization and text detection procedures.