红外技术2016，Vol.38Issue(2)：138-143,6.
一种改进的全变分模型校正红外焦平面阵列条纹非均匀性
An Improved Total Variation Model for Correcting the Stripe Nonuniformity in IRFPA Image
潘科辰 1顾国华 1陈钱 1隋修宝1
作者信息
- 1. 南京理工大学电子工程与光电技术学院，江苏南京 210094
- 折叠
摘要
Abstract
Traditional nonuniformity correction algorithms for infrared focal plane array suffer from drawbacks such as low correction accuracy and damages in image details and edges. Aiming at these problems, a new method based on total variation is proposed for infrared image nonuniformity correction. On the basis of analyzing the influence of different regularization terms on the performance of the total variation model and geometric features of the stripe nonuniformity, we modify the original total variation model so that the new model can either constrain the image gradient of the horizontal direction, or protect the image gradient of the vertical direction. By using the Split Bregman to minimize the total variation model, the computational complexity is significantly reduced so that it can be used in real-time video sequence. We test the experiments on real scene under different circumstances and indicate that our algorithm can effectively remove the column stripe nonuniformity, while the details and edges are well preserved.关键词
红外焦平面阵列/非均匀性校正/全变分/Split Bregman迭代/L1正则Key words
infrared focal plane array/nonuniformity correction/total variation/Split Bregman iteration/L1-norm分类
电子信息工程引用本文复制引用
潘科辰,顾国华,陈钱,隋修宝..一种改进的全变分模型校正红外焦平面阵列条纹非均匀性[J].红外技术,2016,38(2):138-143,6.
