| 基于降斑处理的SAR图像实时压缩系统 |
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| 引用本文： | 李涛,田松,许悦雷,郭忠.基于降斑处理的SAR图像实时压缩系统[J].电视技术,2012,36(17):58-62. |
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| 作者姓名： | 李涛 田松 许悦雷 郭忠 |
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| 作者单位： | 1. 空军工程大学航空航天工程学院,陕西西安,710038
2. 泰山医学院,山东泰安,271000 |
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| 基金项目： | 国防科技重点实验室基金资助项目(9140c61040590c61);航空科学基金资助项目(20115896022) |
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| 摘 要： | 为了对SAR图像进行实时压缩和本地存储,基于FPGA和ADV212芯片,利用空域增强Lee滤波算法,设计实现了SAR图像实时降斑压缩系统。测试结果表明,在降斑处理基础上,系统能对大数据量SAR图像进行压缩,产生JPEG2000格式码流,满足实时性、压缩模式和压缩比可选的要求,可支撑目标探测、区域监控等任务应用。
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| 关 键 词： | SAR图像实时压缩 降斑 FPGA ADV212 JPEG2000 |
| 收稿时间： | 4/4/2012 12:51:15 PM |
| 修稿时间： | 5/1/2012 10:32:13 AM |
SAR Image Real-time Compression System Based on De-Speckle Preprocessing |
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| LITAO,tian song,xu yuelei and guo zhong.SAR Image Real-time Compression System Based on De-Speckle Preprocessing[J].Tv Engineering,2012,36(17):58-62. |
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| Authors: | LITAO tian song xu yuelei and guo zhong |
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| Affiliation: | Air Force Engineering University Engineering College,Air Force Engineering University Engineering College,,Air Force Engineering University Engineering College,Taishan Medical University |
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| Abstract: | In order to real-time compression and local storage of SAR images, based on FPGA and ADV212,using enhance Lee filtering in space domain, this paper designs and implements a system for SAR image real-time compression and de-speckle. Test results suggests that, while reducing the speckle, SAR images with largely data can be compressed by system, coding streams of JEPG2000 can be generated, real-time and the requirements ,which compression mode and ratio can be selected ,are contented. Tasks , detect target and monitor region, can be completed. |
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| Keywords: | SAR image real-time compression de-speckle FPGA ADV212 JPEG2000 |
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