Enhancement of dim small target through modified top-hat transformation under the condition of heavy clutter

被引：61

作者：

Bai, Xiangzhi ^{[1
]}

Zhou, Fugen ^{[1
]}

Jin, Ting ^{[1
]}

机构：

[1] Beijing Univ Aeronaut & Astronaut, Image Proc Ctr, Beijing 100191, Peoples R China

来源：

SIGNAL PROCESSING | 2010年 / 90卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Target enhancement; Dim small target; Top-hat transformation; Heavy clutter; False alarm reduction; Target detection; CLUSTERED MICROCALCIFICATIONS; DETECTABILITY; FILTERS;

D O I：

10.1016/j.sigpro.2009.11.014

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];

摘要：

A new algorithm to enhance dim small target through modified top-hat transformation is proposed in this paper. Firstly, the property of top-hat transformation is analyzed following the property of small target regions. Secondly, a judging value is calculated following the properties of target region and top-hat transformation. Finally, the judging value is imported into the top-hat transformation to form the modified top-hat transformation. Because of the judging value in modified top-hat transformation, dim target can be significantly enhanced and heavy clutter can be effectively suppressed. Experimental results verified that the modified top-hat transformation for target enhancement under the conditions of heavy clutter and dim target intensity was effective and robust. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1643 / 1654

页数：12

共 17 条

[1]

Detection of clustered microcalcifications in small field digital mammograpy [J].