基于补偿算法的红外探测器非均匀性校正

张秋旋; 王玮冰; 李佳

红外技术, 2017, 39 (7): 621, 网络出版: 2017-08-09

基于补偿算法的红外探测器非均匀性校正

Non-uniformity Correction of Infrared Detector Based on Compensation Algorithm

论文大纲

张秋旋 ¹王玮冰 ^1,2李佳 ¹

作者单位

¹ 中国科学院微电子研究所, 北京 100020

² 昆山光微电子有限公司, 江苏苏州 215300

红外焦平面非均匀性校正补偿算法 IRFPA Nonuniformity Correction compensation algorithm FPGA FPGA

摘要

由于工艺条件的限制, 红外焦平面探测器各像元的非均匀性严重影响了红外图像质量, 由红外焦平面非均匀性所导致的成像效果变差的问题已成为制约红外成像技术应用的瓶颈。基于 FPGA为数据处理核心的硬件平台, 采用领域平均算法结合加权滤波算法以及温度补偿算法依次实现了对红外图像的盲元校正与实时补偿处理。实验结果表明此算法能够实时处理图像补偿过程中产生的大量数据, 显著地提高了红外图像质量, 并且仅用 FPGA完成所有数据处理, 构成了精简的最小系统, 有效地降低了成本。

Abstract

Due to the limitations of the process conditions, the non-uniformity of each pixel in an infrared focal plane detector significantly affects the quality of the infrared image. The problem of imaging effect, caused by the non-uniformity of the infrared focal plane, has become a bottleneck in the application of infrared imaging technology. Using FPGA as the hardware platform for data processing, the blind algorithm and real-time compensation processing of infrared images are realized by using a domain-averaging algorithm in combination with weighted filtering algorithm and temperature compensation algorithm. The experimental results show that this algorithm can deal with the large amount of data generated during the image compensation process in real time and improve the quality of the infrared image significantly. All the data processing is completed by the FPGA, which results in a minimum system with reduced cost.

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张秋旋, 王玮冰, 李佳. 基于补偿算法的红外探测器非均匀性校正[J]. 红外技术, 2017, 39(7): 621. ZHANG Qiuxuan, WANG Weibing, LI jia. Non-uniformity Correction of Infrared Detector Based on Compensation Algorithm[J]. Infrared Technology, 2017, 39(7): 621.

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