並列タイトル等サブバンド ブンカツ ト クミアワセタ フラクタル ガゾウ フゴウカ
Fractal Image Coding combined with Sub-band Decomposition
タイトル(掲載誌)愛知工業大学研究報告. B, 専門関係論文集 = Bulletin of Aichi Institute of Technology. Part B
一般注記In order to improve the performance of fractal image coding, this paper proposes a new coding scheme which is combined with resolution decomposition by sub-band. In the proposed scheme, an input image is first decomposed to low and high resolution sub-band images. The fractal block conding with adaptive range block size is performed only for the lowest resolution sub-band image. On the other hand direct quantization and entropy coding are carried out for the other high resolution sub-band image. The residual difference between reconstructed and original lowest resolution sub-band image is also quantized and entropy coded in order to enhance the coding performance. Computer simulation experiment were carried out employing 4 sub-bands and 7 sub-bands decompositions. The results show that the proposed coding scheme gives higher SNR (Signal-to-Noise Ratio) values and better reconstructed image qualities compared to the conventional fractal block coding scheme
identifier:http://repository.aitech.ac.jp/dspace/handle/11133/1142
一次資料へのリンクURLhttp://repository.aitech.ac.jp/dspace/bitstream/11133/1142/1/%e7%b4%80%e8%a6%8136%e5%8f%b7B%28P217-224%29.pdf
連携機関・データベース国立情報学研究所 : 学術機関リポジトリデータベース(IRDB)(機関リポジトリ)