<論文>分散値によるQuadtree Partitionを用いたフラクタル画像圧縮 (<特集>情報メディア)

概要

論文の詳細を見る
In fractal coding using the Fischer's classification in which all the ranges and domains are classified into 72 classes, the quadtree partition method is used to obtain high quality of encoded images. Partitioning process, however, is quite time-consuming. In this paper, to overcome the drawback a new theory of range splitting is proposed. In the proposed theory, whether a given range is split into a quadtree partition or not can be determined in advance using variance of the range. Therefore the splitting process is very fast. Coding using the proposed method is compared with one using the current partition method that uses the RMS measure. It follows from the comparison that coding using the proposed method is very higher speed than one using the Fischer's partition method and can obtain encoded images with good image quality.
東海大学の論文
2002-09-30