In this paper, we discuss the convergence properties of the memoryless quasi-Newton method proposed by Shanno (1978). In the two-dimensional quadratic case, we prove the global convergence of the meth
In this paper, we present a fast Fourier transform algorithm for the inverse of Rblock circulant matrices of order mn, its arithmetic complexity is o(mn log_2 mn).
We propose a virtual boundary condition forecast algorithm for multi grid parallel competing, and derive a forecast function formula in this paper. Numerical results of one and two-dimension boundary
结合形变模型和 ACD方法提出了基于形变模型的 3D表面自适应重建方法 .同时引入了与图象统计特性有关的外力 ,使得表面重建结果与模型的初始位置无关 ,利用 ACD方法使模型自适应地改变其拓扑结构 ;为了提高表面重建的速度和鲁棒性 ,提出了多尺度重建算法 .该方法适用于形状、结构复杂的物体重建 ,实验结果证明了该方法的有效性 .