linear interpolation

linear interpolation:

bilinear interpolation = 2次linear interpolation + 1 次linear interpolation = 3 次 linear interpolation

红点→蓝点 →绿点

trilinear interpolation = 2次bilinear interpolation + 1 次linear interpolation 

            =  2 * 3次 linear interpolation + 1 次linear interpolation = 7次linear interpolation

黑点→蓝点→绿点→红点 

同理quadlinear interpolation = 2次triinear interpolation + 1 次linear interpolation 

              = 2 * 7次linear interpolation + 1 次linear interpolation = 15次linear interpolation

 

trilinear interpolation contain (int)(7 linear interpolation / 3) = 2 bilinear interpolation

quadlinear interpolation contain (int)(15 linear interpolation / 3) = 5 bilinear interpolation

posted @ 2013-05-03 08:57  qingsun_ny  阅读(439)  评论(0编辑  收藏  举报