郑天宇,尹达一

• 1:中国科学院红外探测与成像技术重点实验室
• 2:中国科学院上海技术物理研究所
• 3:中国科学院大学

摘要(Abstract)：

在FPGA中实现了一种新的星点质心提取算法,对星提取和连通域标记进行了研究。对拖尾星斑以行为单位划分子连通域,逐像素扫描将子连通域动态合并。利用标号回收机制降低片上资源占用率。最终,设计算法的硬件结构,并将算法在FPGA中实现,对拖尾星图进行了星提取。仿真与测试结果表明,该算法能够通过一次扫描提取出星斑质心信息,不需要图像缓存,在125 MHz时钟下数据吞吐率达到了1 Gbit/s。针对512×512面阵探测器处理速度可达到476 f/s,满足星图质心提取算法实时性的要求。

关键词(KeyWords)： 质心提取算法;拖尾星斑;单次扫描;连通域标记;标号回收;FPGA

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(40776100)~~

作者(Author): 郑天宇,尹达一

DOI: 10.16652/j.issn.1004-373x.2018.14.005

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