High-space-frequency correction method for infrared stripe nonuniformity

Junqi Bai; Chencheng Yang; Chunguang Zhao

doi:10.1117/12.2267481

8 March 2017 High-space-frequency correction method for infrared stripe nonuniformity

Junqi Bai, Chencheng Yang, Chunguang Zhao

Proceedings Volume 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016; 102553G (2017) https://doi.org/10.1117/12.2267481
Event: Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 2016, Jinhua, Suzhou, Chengdu, Xi'an, Wuxi, China

Abstract

Infrared image quality is a key factor of object detection. Stripe nonuniformity is very typical in the staring infrared focal plane array (IRFPA). In this paper, we propose a novel high-space-frequency correction method to eliminate the stripe nonuniformity. The kernel ideal is to eliminate the high-space-frequency part of stripe nonuniformity and retain its low-space-frequency part which can reduce unwanted ghosting artifacts. Firstly, the spatial characteristic of stripe nonuniformity is discussed, then correction parameters are computed based on the spatial high frequency part of image. Experimental results show the proposed mehtod can compute adaptive correction parameters of each readout channel and obtain a reliable stripe nonuniformity reduction.

Citation Download Citation

Junqi Bai, Chencheng Yang, and Chunguang Zhao "High-space-frequency correction method for infrared stripe nonuniformity", Proc. SPIE 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 102553G (8 March 2017); https://doi.org/10.1117/12.2267481

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