红外焦平面非均匀性校正两点法的优化实现  

Optimizing implement of IRFPA nonuniformity correction using two-point method

作　　者：张天序[1] 樊荣[1] 石岩[1] 

机构地区：[1]华中科技大学图像识别与人工智能研究所图像信息处理与智能控制国家教育部重点实验室,湖北武汉430074

出　　处：《系统工程与电子技术》2005年第7期1169-1172,1177,共5页Systems Engineering and Electronics

基　　金：国家自然科学基金(60135020);国家重点预研基金(413010702)资助课题

摘　　要：在分析红外焦平面(IRFPA)非均匀性校正两点法基本原理的基础上,推导出了两点校正的定点公式,并分析了该定点公式的误差。利用TI的定点数字信号处理器TMS320C64x的特点,对定点校正公式进行了汇编优化,极大地提高了校正的运算速度。实际的IRFPA红外图像的实验表明,所提出的定点校正方法及基于TMS320C64xDSP的优化方法是简单、有效的。On the base of analyzing the principle of two-point nonuniformity correction method of IRFPA, sequently the formula in the fix-point form is deduced, and its error is analysed. Moreover on the character of TMS320C64x DSP, the fix-point formula has been optimized using assembly language of C64x, and this quite increases the operating speed. Through the experiment of real IRFPA, the result shows the proposed approach to fix-point correction method and optimizing method based on TMS320C64x DSP are effective and feasible.

关 键 词：图像处理 红外焦平面阵列 非均匀校正 数字信号处理器 优化 

分 类 号：TN24[电子电信—物理电子学]