有界域上有向图信号表示的自适应方向Haar紧标架
Adaptive directional Haar tight framelets on bounded domains for digraph signal representations
摘要:
基于分层划分,我们提供了任何紧集$K\subseteq \mathbb{R}^d$上Haar型紧框架小集的构造。特别地,在单元块$[0,1]^d$上,这种紧密小框架可以被构建为具有自适应性和方向性。我们表明,自适应方向Haar紧框架系统可以用于有向图信号表示。最后给出了一些例子来说明本文的结果。
英文摘要:
Based on hierarchical partitions, we provide the construction of Haar-type tight framelets on any compact set $K\subseteq \mathbb{R}^d$. In particular, on the unit block $[0,1]^d$, such tight framelets can be built to be with adaptivity and directionality. We show that the adaptive directional Haar tight framelet systems can be used for digraph signal representations. Some examples are provided to illustrate results in this paper.
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