| 基于FPGA的弱小目标增强方法 |
| |
| 引用本文： | 陈中坤,张启衡.基于FPGA的弱小目标增强方法[J].激光与红外,2007,37(8):780-783. |
| |
| 作者姓名： | 陈中坤 张启衡 |
| |
| 作者单位： | 1. 中国科学院光电技术研究所国家863计划光束控制重点实验室,四川,成都,610209;中国科学院研究生院,北京,100039
2. 中国科学院光电技术研究所国家863计划光束控制重点实验室,四川,成都,610209 |
| |
| 摘 要： | 针对强光背景低对比度条件下弱小目标的特点,提出基于Sigmoid函数的图像增强方法.该方法能扩展图像中像素较多的灰度,压缩像素较少的噪声.针对传统的Cordic算法,提出了一种基于查找表-流水线乘积(LTPM)的算法实现指数运算,运用该算法,在FPGA中很好地实现了本文提出的增强算法.
|
| 关 键 词： | 目标识别 图像增强 流水线乘积 查找表 FPGA 弱小目标 增强方法 Based Enhancement 增强算法 运用 指数运算 算法实现 乘积 流水线 查找表 Cordic 噪声 压缩 灰度 像素 扩展 图像 函数 |
| 文章编号： | 1001-5078（2007）08-0780-04 |
| 修稿时间： | 2007-01-24 |
Image Enhancement Based on the FPGA |
| |
| CHEN Zhong-kun,ZHANG Qi-heng.Image Enhancement Based on the FPGA[J].Laser & Infrared,2007,37(8):780-783. |
| |
| Authors: | CHEN Zhong-kun ZHANG Qi-heng |
| |
| Institution: | Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China; Graduate School of the Chinese Academy of Sciences, Beijing 100039, China |
| |
| Abstract: | According to the strong light background and low contrast conditions,the image enhancement algorithm based on the sigmoid function is introduced,which can extend the gray range having large amounts of pixels and reduce the one having small amounts.A new LTPM(lookup-table and pipelining-multiplier) algorithm which can implement the exponent function is proposed aiming at the weakness of the traditional cordic algorithm.The image enhancement algorithm introduced is implemented successfully in FPGA by means of the LTPM. |
| |
| Keywords: | target detection image enhancement pipelining multiplier lookup table |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《激光与红外》浏览原始摘要信息 |
| 点击此处可从《激光与红外》下载免费的PDF全文 |
|
