Title :
Scene-based non-uniformity correction using compressive sensing
Author :
Iqbal, Mahboob ; Chen, Jie ; Li, Zhuo
Author_Institution :
Sch. of Electron. & Inf. Eng., Beijing Univ. of Aeronaut. & Astronuatics, Beijing, China
Abstract :
A novel compressive sensing (CS) based non-uniformity correction (NUC) technique for focal plane array (FPA) imaging system is proposed. Instead of estimating NUC parameters from video sequence at 100% sensors in FPA, only 40% sensors are selected via CS measurement matrix for real-time NUC estimation and CS reconstruction algorithm is exploited to obtain NUC compensation table for 100% sensors. In this study, temporal highpass filtering technique is used to estimate NUC parameters at selected pixels from sequence of video frames. The simulation results show that proposed CS based NUC framework can effectively remove FPA non-uniformities.
Keywords :
data compression; focal planes; image reconstruction; video signal processing; compressive sensing; focal plane array imaging system; reconstruction algorithm; scene based nonuniformity correction; video frame; video sequence; Arrays; Compressed sensing; Image reconstruction; Imaging; Sensors; Sparse matrices; Video sequences; Compressive Sensing; Focal Plane Array; Non-uniformity Correction;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4577-1003-2
DOI :
10.1109/IGARSS.2011.6049296
