The Implementation of non-uniformity correction in multi-TDICCD imaging system

Guofang Zhai; Yun Cheng; Zhixue Han; Dong Wang

doi:10.1117/12.2197030

8 October 2015 The Implementation of non-uniformity correction in multi-TDICCD imaging system

Guofang Zhai, Yun Cheng, Zhixue Han, Dong Wang

Proceedings Volume 9675, AOPC 2015: Image Processing and Analysis; 96750A (2015) https://doi.org/10.1117/12.2197030
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

Abstract—a non-uniformity correction algorithm is proposed and implemented on a Field-Programmable Gate Array (FPGA) hardware platform to solve a problem of pixel response non-uniformity(PRNU) for multiple Time Delay and Integration Charge Couple Device(TDICCD) camera. The non-uniformity is introduced and a synthetical correction algorithm is presented, in which the two-point correction method is applied to a single channel, gain averaging correction method among multi-channel and scene-adaptive correction method among multiple-TDICCD. Then, the correction algorithm is generated. Finally, the FPGA ability for fix-point processing is analyzed; the correction algorithm is optimized, and implemented on FPGA. Testing results indicate that the non-uniformity can be decreased from 8.27% to 0.51% for three TDICCDs camera's images with this proposed correction algorithm, proving that this correction algorithm is with high real-time performance, great engineering realization and satisfaction for the system requirements.

Citation Download Citation

Guofang Zhai, Yun Cheng, Zhixue Han, and Dong Wang "The Implementation of non-uniformity correction in multi-TDICCD imaging system", Proc. SPIE 9675, AOPC 2015: Image Processing and Analysis, 96750A (8 October 2015); https://doi.org/10.1117/12.2197030

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available