论文标题
球体值信号的Tikhonov正规化
Tikhonov Regularization of Sphere-Valued Signals
论文作者
论文摘要
通常必须处理信号，其值是3-D球体上的点。我们考虑一个Tikhonov型正则化模型，以平滑或插值球体值信号在任意图上定义。我们提出将这个非概念问题作为半决赛程序的凸放松，该程序易于在数值上求解并且在实践上是有效的。
It is common to have to process signals, whose values are points on the 3-D sphere. We consider a Tikhonov-type regularization model to smoothen or interpolate sphere-valued signals defined on arbitrary graphs. We propose a convex relaxation of this nonconvex problem as a semidefinite program, which is easy to solve numerically and is efficient in practice.
