TRANSLATION AND SCALE INVARIANTS OF HAHN MOMENTS

被引：15

作者：

Goh, Hock-Ann ^{[1
]}

Chong, Chee-Way ^{[1
]}

Besar, Rosli ^{[1
]}

Abas, Fazly Salleh ^{[1
]}

Sim, Kok-Swee ^{[1
]}

机构：

[1] Multimedia Univ, Fac Engn & Technol, Bukit Beruang 75450, Melaka, Malaysia

来源：

INTERNATIONAL JOURNAL OF IMAGE AND GRAPHICS | 2009年 / 9卷 / 02期

关键词：

Hahn moments; discrete orthogonal moments; translation invariants; scale invariants;

D O I：

10.1142/S0219467809003435

中图分类号：

TP31 [计算机软件];

学科分类号：

081202 ; 0835 ;

摘要：

Hahn moments are a superset of Tchebichef and Krawtchouk moments. The formulation for Hahn moments is however comparably more complex than other moments. So far only research work on translation and scale invariants for Tchebichef moments has been presented but not on Hahn moments. In this paper, a moment normalization method to achieve translation and scale invariants of Hahn moments is proposed. This method applies the concept of mapping functions used in image normalization. The mapping functions, once determined, are plugged into the moment generating functions to generate moment invariants. The proposed method is simpler and flexible. Experimental results show that faster execution and more precise moment invariants can be achieved using the invariant generating functions.

引用

页码：271 / 285

页数：15

共 17 条

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