Planelets : a new analysis tool for planar feature extraction
Nasir Rajpoot, Roland Wilson, Zhen Jing Yao · Warwick Research Archive Portal (University of Warwick) · 2004
Locally planar structures, formed by sweeping edges of objects, are commonly found in video sequences and convey most of the useful information. In this paper, the issue of efficient representation of such structures is addressed. We propose a novel representation tool which uses basis functions, termed as planelets, resembling planar structures and having compact support in space-time and spatiotemporal frequency. The representation is translation invariant, offers good directional selectivity, and can be computed efficiently. We show that the new representation, while being fast, produces video denoising results which compare favourably to one of the best known methods.