Title
Pruned Continuous Haar Transform of 2D Polygonal Patterns with Application to VLSI Layouts
Abstract
We introduce an algorithm for the efficient computation of the continuous Haar transform of 2D patterns that can be described by polygons. These patterns are ubiquitous in VLSI processes where they are used to describe design and mask layouts. There, speed is of paramount importance due to the magnitude of the problems to be solved and hence very fast algorithms are needed. We show that by techniques borrowed from computational geometry we are not only able to compute the continuous Haar transform directly, but also to do it quickly. This is achieved by massively pruning the transform tree and thus dramatically decreasing the computational load when the number of vertices is small, as is the case for VLSI layouts. We call this new algorithm the pruned continuous Haar transform. We implement this algorithm and show that for patterns found in VLSI layouts the proposed algorithm was in the worst case as fast as its discrete counterpart and up to 12 times faster.
Year
Venue
Keywords
2011
Computing Research Repository
data structure,computational geometry,vlsi design
Field
DocType
Volume
Polygon,Vertex (geometry),Haar,Computational geometry,Algorithm,Very-large-scale integration,Mathematics,Computation
Journal
abs/1105.1
ISSN
Citations 
PageRank 
R. Scheibler, P. Hurley, and A. Chebira, "Pruned Continuous Haar Transform of 2D Polygonal Patterns with Application to VLSI Layouts," Proc. of the 2010 IRAST Int. Cong. on Comp. App. and Computational Sci. (CACS 2010), pp. 984--987, 2010
0
0.34
References 
Authors
1
3
Name
Order
Citations
PageRank
Robin Scheibler16012.15
Paul Hurley2172.99
A. Chebira317914.16