Autosophy still image compression
Advanced Internet still image
compression and encryption
Authors: Klaus Holtz, Eric Holtz, Diana Kalienky.
Published / Presented at: Electronic Imaging 2003, Internet Imaging IV, 21 – 22 January 2003, Santa Clara, California, USA. SPIE Vol. 5018, Page 39.
Level: Expert Still Image Compression
Abstract: A new image compression format is being developed to replace the gif and tif formats for Internet image transmission. Based on the Autosophy information theory, the new format is especially suited to the Internet. Features include much higher compression ratios, improved resistance to the Internet's Quality of Service (QoS) problems, a universal hardware-independent communication format, and optional "codebook" encryption for secure communications. The all 16bit data format allows the mixing of other Internet data types (including live video, sound, text, and random bit files) within a universal communication protocol. Encoding speed is less than a second per image. Hardware chipsets are necessary for real-time encoding speed, but real-time retrieval can be achieved using software only. Conventional lossless image compression formats use the dynamically growing tree libraries of the LZW code. That yields minimal compression for small images and creates great sensitivity to transmission errors. The new image compression format, in contrast, uses a fixed -- pre-grown -- hyperspace pattern library. That provides much higher compression ratios, increased error resistance, and even optional encryption. The same algorithms can provide either "lossless" compression according to the Shannon theory or "visually lossless" compression according to the Autosophy theory.
Keywords: Autosophy, Internet imaging, Image Compression, Information theory, gif format, tif format, Encryption
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