(l)提出了基于最小二乘网格的自由变形技术。以最小二乘网格作为原始网格

的低分辨率网格，将两者之间的高低频差用局部标架编码，达到保持网格模型的

表面几何细节的目的。算法基本思想就是利用网格自由变形技术(均值坐标)控

制低分辨率的最小二乘网格，而不是直接控制原始网格 然后通过局部标架编码

重建变形后的网格。-(L) proposed a free-form deformation based on least squares of the grid technology. The least square grid as the original low-resolution mesh grid, the difference between the two high frequency frames with local codes, to maintain the mesh of the surface geometry details of the purpose. The basic idea is to use grid algorithm is free-form deformation techniques (mean coordinates) to control low-resolution least-squares grid, rather than direct control of the original mesh　and then re-encoded frame by local deformation of the grid.