| 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： | 2012-04-04 |
| 修稿时间： | 2012-05-01 |
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]. Ideo Engineering, 2012, 36(17): 58-62 |
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| Authors: | LITAO tian song xu yuelei 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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