For Full-Text PDF, please login, if you are a member of IEICE,|
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
Efficient Algorithms for Constructing a Pyramid from a Terrain
Jinhee CHUN Kunihiko SADAKANE Takeshi TOKUYAMA
IEICE TRANSACTIONS on Information and Systems
Publication Date: 2006/02/01
Online ISSN: 1745-1361
Print ISSN: 0916-8532
Type of Manuscript: Special Section PAPER (Special Section on Foundations of Computer Science)
Category: Computational Geometry
algorithm, numeric data, optimal reshaping, unimodal approximation,
Full Text: PDF(350.7KB)>>
In , the following pyramid construction problem was proposed: Given nonnegative valued functions ρ and µ in d variables, we consider the optimal pyramid maximizing the total parametric gain of ρ against µ. The pyramid can be considered as the optimal unimodal approximation of ρ relative to µ, and can be applied to hierarchical data segmentation. In this paper, we give efficient algorithms for a couple of two-dimensional pyramid construction problems.