カラー画像のデータベースに用いられる階層的符号化方式 : 映像表現,画像処理・コンピュータビジョン
1992 年 16 巻 9 号 p. 31-36
詳細
1992 年 16 巻 9 号 p. 31-36
A progressive build-up coding method for color image data base is proposed. In the proposed method, the image resolution of the reconstructed image is increased in the DCT spatial frequency domain. Furthermore, in searching for the images, only the important image areas are displayed with high resolution. The proposed method reduces the number of DCT calculation and round error, and improves the coding efficiency.
