A publishing system based on fluency coding method

摘要

This paper proposes a new publishing system using PC and large-sized printer that can produce high quality printed matters comprising text, charts, and illustrations, etc. As the core component of this system, a coding method that can ensure the quality of decoded images even on Affine-transformed enlargement or reduction is needed. Conventional coding methods, however, cannot claim to have satisfied such a requirement. This paper presents a novel method for encoding and decoding binary images via adaptively approximating the object contours using Fluency functions in the form of straight lines, arcs, and curved lines that were proposed by one of the authors. Based on the experimental results, we demonstrate that the quality of the decoded images is maintained without the jaggy-noises even on resizing. Furthermore, signboards produced by this publishing system have actually been used in several live events.