Compensation for the non-uniformity correction of multi-channel TDI CCD under variable gain

doi:10.1049/ote2.12011

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	Compensation for the non-uniformity correction of multi-channel TDI CCD under variable gain
	Y.-H. Li; X.-D. Wang and Z. Wang
刊名	IET Optoelectronics
	2021
卷号	15 期号:1 页码:27-39
ISSN号	17518768
DOI	10.1049/ote2.12011
英文摘要	The compensation for non-uniformity correction of multi-channel time delay integration charge coupled device (TDI CCD) under variable gain is presented. The mathematical model of photoelectric conversion is established first, and, then, a two-step non-uniformity correction method for multi-channel TDI CCD is proposed. Based on this method, a compensation algorithm for non-uniformity correction under variable gain is elaborated in detail. The experimental results show that the proposed algorithm can always maintain the photo response non-uniformity (PRNU) of the corrected images better than 1.14% when the programmable gain amplification (PGA) gain varies within the range of 13, compared to the conventional method of degrading to 2.91%. Meanwhile, a compression method for correction coefficients under multiple integral stages is proposed, which can reduce the storage space requirement by 50% at the cost of the PRNU being degraded by a maximum of 0.19% at all integral stages. 2020 The Authors. IET Optoelectronics published by John Wiley & Sons Ltd on behalf of The Institution of Engineering and Technology.
URL标识	查看原文
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/65107]
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y.-H. Li,X.-D. Wang and Z. Wang. Compensation for the non-uniformity correction of multi-channel TDI CCD under variable gain[J]. IET Optoelectronics,2021,15(1):27-39.
APA	Y.-H. Li,&X.-D. Wang and Z. Wang.(2021).Compensation for the non-uniformity correction of multi-channel TDI CCD under variable gain.IET Optoelectronics,15(1),27-39.
MLA	Y.-H. Li,et al."Compensation for the non-uniformity correction of multi-channel TDI CCD under variable gain".IET Optoelectronics 15.1(2021):27-39.