TDI CCD non-uniformity correction algorithm

Author

Li, Tao ; He, Mingyi ; Lei, Ning ; Li, Chunmei ; Wang, Qingyuan

Author_Institution

Sch. of Electron. & Inf., Northwestern Polytech. Univ., Xi´´an

fYear

2009

fDate

25-27 May 2009

Firstpage

1483

Lastpage

1487

Abstract

With the increasing demand for the development of high quality remote sensing image techniques, the problem of image degradation causing by pixel-response non-uniformity (PRNU) is becoming a key issue. In this paper, a novel PRNU correction algorithm is proposed and implemented on FPGA hardware platform. Firstly, the characteristic of the CCD noise is analyzed. Secondly, the degradation model of pixel-response non-uniformity is described and the correction algorithm is designed. Thirdly, the calculation precision is analyzed and the factors affecting the result of correction are analyzed. Finally, the proposed correction algorithm is tested in the hardware circuit. The experimental results show that SNR of the image is improved remarkably through correction processing.

Keywords

CCD image sensors; field programmable gate arrays; remote sensing; CCD noise; FPGA hardware platform; TDI CCD nonuniformity correction algorithm; pixel-response nonuniformity; remote sensing image technique; Algorithm design and analysis; Charge coupled devices; Circuit noise; Circuit testing; Degradation; Field programmable gate arrays; Hardware; Pixel; Remote sensing; Signal to noise ratio; CCD; SNR; correction algorithm; pixel-response non-uniformity;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics and Applications, 2009. ICIEA 2009. 4th IEEE Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4244-2799-4

Electronic_ISBN

978-1-4244-2800-7

Type

conf

DOI

10.1109/ICIEA.2009.5138387

Filename

5138387