红外焦平面阵列非均匀性多点实时压缩校正研究  

Study on Real-time Multi-points Compressive Nonuniformity Correction of IRFPA

作　　者：张强[1] 侯宁 刘红燕 

机构地区：[1]重庆邮电大学信号与信息处理重庆市重点实验室,重庆400065 [2]西安市长庆油田分公司通信处,陕西西安710023

出　　处：《红外技术》2012年第10期593-597,共5页Infrared Technology

基　　金：国家自然科学基金项目(编号:61071196);教育部新世纪优秀人才支持计划;编号:NCET-10-0927;信号与信息处理重庆市市级重点实验室建设项目;编号:CSTC;2009CA2003;重庆市自然科学基金项目;编号:CSTC;2009BB2287;CSTC;2010BB2398;CSTC;2010BB2411;重庆市科技攻关计划项目;编号:CSTC;2011AB2008

摘　　要：非均匀性校正是提高红外图像质量的主要方法之一。针对传统的多点校正方法运算量大、实时性能差等缺点,提出多点实时压缩校正新方法,该方法将校正曲线相同或相似的不同探测单元归为一类,并将归类后的校正曲线的映射表存储在查找表中,校正过程中仅对查找表中的数据进行实时读取。实验结果表明:该算法计算量小、校正速度快,更加适合硬件实时实现。Nonuniformity correction is one of the main methods that can improve the quality of infrared image. Aiming at the problem of the large data storing and poor real-time capacity of traditional multi-point correction, a new multi-points compressive correction method is proposed. Detector pixels with identical or similar calibration curve will be classified as a class, and the mapping table of the categorized correction curves will be stored in a look-up table. During the correction process, only the data in the look-up table is read in real-time. The experimental results show the algorithm has less computation and requires less storage space of data, which is more suitable for real-time hardware implementation.

关 键 词：红外图像 非均匀性 实时性 多点压缩校正 

分 类 号：TN219[电子电信—物理电子学]