輪郭のフラクタル性を利用した画像符号化 : 映像表現,画像処理・コンピュータビジョン

概要

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A fractal based image coding method using contour lines of segmented regions is discussed in this paper. We classify the regions of an image into two categories, using pyramidal region segmentation. First one is the category of the regions do not have to preserve the waveform of image. And the regions categorised in this class are encoded using only fractal parameters. Another one is the category of the regions have to preserve the waveform of image. We can encode this part of image using any waveform coding method(DCT, VQ, etc.). On the other hand, we classify those blocks containing region contour lines into two categories using the complexity of the shape of contour lines. First one is with simple contours. Blocks in this category are encoded usng the same method for the regions do not have to preserve the waveform of image. Another one is with complex contiurs. Blocks in this category are encoded using both waveform coding method and fractal coding method.
社団法人映像情報メディア学会の論文
1992-01-24