| 基于Nios红外图像实时非均匀性校正研究 |
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| 引用本文： | 孔令彬,王川,许鸿文,戚建汉. 基于Nios红外图像实时非均匀性校正研究[J]. 华中科技大学学报(自然科学版), 2005, 33(12): 70-72 |
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| 作者姓名： | 孔令彬 王川 许鸿文 戚建汉 |
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| 作者单位： | 1. 中国地质大学,机械与电子工程学院,湖北,武汉,430074
2. 华中电网有限公司,通信处,湖北,武汉,430077 |
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| 基金项目： | 湖北省自然科学基金资助项目(2004BA034) |
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| 摘 要： | 针对红外成像系统在图像处理中所涉及的数据量大,实时处理难于实现的特点,运用Altera公司SOPC-Nios嵌入式软核心处理器技术,提出一种利用FPGA硬件实现红外焦平面阵列实时非均匀性两点校正的方法.该方法针对非均匀性校正关键的内部循环和耗时算法,创建Nios嵌入式处理器的定制指令,将复杂的顺序指令简化为硬件实现的单指令,用硬件实现校正算法,极大地提高了系统的处理速度和性能,有效地解决了红外成像技术中实时性难题.
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| 关 键 词： | 红外焦平面阵列 非均匀性校正 微测辐射热计 现场可编程门阵列 可编程单芯片系统 |
| 文章编号： | 1671-4512（2005）12-0070-03 |
| 收稿时间： | 2005-03-07 |
| 修稿时间： | 2005-03-07 |
Correction of infrared image with real-time and nonuniformity based on the nios technique |
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| Kong Lingbin,Wang Chuan,Xu Hongwen,Qi Jianhan. Correction of infrared image with real-time and nonuniformity based on the nios technique[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2005, 33(12): 70-72 |
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| Authors: | Kong Lingbin Wang Chuan Xu Hongwen Qi Jianhan |
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| Abstract: | According to large amounts of image data and difficulties in implementing real-time image processing,a two-point correction method with real-time and non-uniformity was proposed to realize infrared focal plane array(IRFPA)by the latest SOPC-Nios embedded software core processing technique and field programmable gate array(FPGA).In consideration of the critical inner loop and time-consuming algorithm in non-uniformity correction,the processing speed of the system and its performance were improved,and the real-time infrared imaging problems were effectively solved through creating custom instructions for Nios embedded processor,and turned the complicated sequential instructions into a single instruction and fulfilling correction algorithm in hardware. |
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| Keywords: | infrared focal plane array non-uniformity correction microbolometer field programmable gate array system on a programmable chip |
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