| 一种自适应红外图像非均匀性校正方法及其FPGA实现 |
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| 引用本文： | 杜丽. 一种自适应红外图像非均匀性校正方法及其FPGA实现[J]. 红外, 2011, 32(6): 15-17. DOI: 10.3969/j.issn.1672-8785.2011.06.004 |
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| 作者姓名： | 杜丽 |
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| 作者单位： | 北京理工大学信息与电子学院,北京,100081 |
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| 摘 要： | 介绍了一种自适应红外图像非均匀性校正方法及其FPGA实现.该方法能够实时计算校正系数,并能够保证校正质量.首先利用两点定标校正法获得初始校正系数,然后根据焦平面阵列元的响应特性实时修正校正系数,并通过在系数修正过程中加入修正判断,很大程度地改善了传统校正过程中的逐渐模糊和鬼影的不足.最后在FPGA硬件平台上实现了该方法...
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| 关 键 词： | 红外图像 非均匀性校正 自适应算法 FPGA |
| 收稿时间： | 2011-04-17 |
| 修稿时间： | 2011-04-19 |
An Adaptive Non-uniformity Correction Algorithm for Infrared Images and Its Implementation on FPGA |
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| duli. An Adaptive Non-uniformity Correction Algorithm for Infrared Images and Its Implementation on FPGA[J]. Infrared, 2011, 32(6): 15-17. DOI: 10.3969/j.issn.1672-8785.2011.06.004 |
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| Authors: | duli |
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| Affiliation: | Beijing Institute of Technology |
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| Abstract: | An adaptive method for correcting the nonuniformity of infrared images and its implementation on FPGA are presented. The method can calculate the correction factor in real time and keep high correction quality. Firstly, a traditional two-point correction method is used to obtain initial correction coefficients. Then, the correction coefficients are modified according to the response characteristics of a focal plane array in real time. Since the modification judgment is added in the coefficient modification, the method overcomes the problems of blurring effect and ghosting. Finally, the method is implemented on the platform of FPGA. The test result shows that the method can meet the real-time and nonuniform requirements and has a good adaptability to environment. |
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| Keywords: | infrared image nonuniformity correction adaptive algorithm FPGA |
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