| 基于虚拟边框视场光阑的IRFPA自适应非均匀性校正算法 |
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| 引用本文： | 刘崇亮,金伟其,范永杰,曹扬,刘秀,刘斌. 基于虚拟边框视场光阑的IRFPA自适应非均匀性校正算法[J]. 电子学报, 2011, 39(5): 1159-1164 |
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| 作者姓名： | 刘崇亮 金伟其 范永杰 曹扬 刘秀 刘斌 |
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| 作者单位： | 北京理工大学光电学院,光电成像技术与系统教育部重点实验室,北京,100081 |
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| 基金项目： | 国家自然科学基金，国家863计划现代交通技术领域专项课题 |
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| 摘 要： | 非均匀性校正是提高红外焦平面阵列成像质量的关键环节.本文提出了一种基于虚拟边框视场光阑的红外非均匀性校正算法.该算法用人工神经网络对边框像元进行初始校正,形成校正虚拟边框,再根据场景信息和帧间位移,将偏置校正参数逐行逐列传递,可消除焦平面阵列全视场响应的偏置非均匀性.由于算法主要基于代数运算,运算量较低,故能根据场景信息自适应地实现快速、高效的一点校正;且不需要对成像系统进行机械结构改造,与传统代数算法相比,适应性更强.真实红外图像与仿真图像对算法的检验结果,证明了方法的有效性.
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| 关 键 词： | 红外焦平面探测器阵列 基于场景 虚拟边框视场光阑 非均匀性校正 |
| 收稿时间： | 2010-06-07 |
Infrared Non-Uniformity Correction Algorithm Based on Virtual Perimeter Diaphragm Strips |
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| LIU Chong-liang,JIN Wei-qi,FAN Yong-jie,CAO Yang,LIU Xiu,LIU Bin. Infrared Non-Uniformity Correction Algorithm Based on Virtual Perimeter Diaphragm Strips[J]. Acta Electronica Sinica, 2011, 39(5): 1159-1164 |
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| Authors: | LIU Chong-liang JIN Wei-qi FAN Yong-jie CAO Yang LIU Xiu LIU Bin |
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| Affiliation: | LIU Chong-liang,JIN Wei-qi,FAN Yong-jie,CAO Yang,LIU Xiu,LIU Bin(School of Optoelectronics,Beijing Institute of Technology,Key Laboratory of PhotoelectronicImaging Technology and System,Ministry of Education of China,Beijing 100081,China) |
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| Abstract: | Non-uniformity correction(NUC) plays an important role in improving image quality of the infrared focal plane array(IRFPA).A non-uniformity correction algorithm for IRFPA based on virtual perimeter diaphragm strips is proposed.This algorithm initially executes one-point correction to the perimeter detectors using artificial neural networks.Then based on the scene information and shift between adjacent frames,a special algebraic algorithm is proposed to transport correction parameters from perimeter detector... |
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| Keywords: | infrared focal plane array(IRFPA) scene-based virtual perimeter diaphragm strips non-uniformity correction(NUC) |
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