摘要
本文在更一般的条件下（二维，不同大小range块）证明了分形图像压缩中PIFS（PartinonedIteratedFunctionSystem）不动点的多分辨率特性，即低分辨率不动点可以通过对高分辨率不动点进行收缩变换得到，高分辨率不动点可以通过对低分辨率不动点进行仿射交换得到，所得结论是Baharav等文中结论的推广．
Under more general conditions such as 2D, range blocks of different size, the multiresolution properties of PIFS's fixed point in fractal image compression are proved, i. e., the fixed points at low resolutions can be obtained from those at high resolutions through spatial contraction operator, while the fixed points at high resolutions can be obtained from those at low resolutions through affine operator. The resulted conclusions are generalizations of those presented by Baharav et al in 1995.
出处
《计算机学报》
EI
CSCD
北大核心
1998年第11期1042-1046,共5页
Chinese Journal of Computers
