多输出CCD接缝校正

吴厚德; 许文海

doi:10.3788/OPE.20132102.0454

您当前的位置：

首页 >

文章列表页 >

多输出CCD接缝校正

信息科学 | 更新时间：2020-08-12

- 多输出CCD接缝校正
- Correction of seams for multiple output CCD
- 光学精密工程 2013年21卷第2期页码：454-461
- 作者机构：
  
  大连海事大学信息科学技术学院,辽宁大连,中国,116026
- 作者简介：
- 基金信息：
  
  中央高校基本科研业务费专项资金资助(30915118823);国家科技支撑计划课题(2014BAB12B04)
- DOI：10.3788/OPE.20132102.0454
  中图分类号： TN386.5
- 收稿日期：2012-07-26，
  
  修回日期：2012-11-13，
  
  网络出版日期：2013-02-23，
  
  纸质出版日期：2013-02-15
- 稿件说明：
移动端阅览
吴厚德许文海. 多输出CCD接缝校正[J]. 光学精密工程, 2013,21(2): 454-461

WU Hou-de XU Wen-hai. Correction of seams for multiple output CCD [J]. Editorial Office of Optics and Precision Engineering, 2013,21(2): 454-461
吴厚德许文海. 多输出CCD接缝校正[J]. 光学精密工程, 2013,21(2): 454-461 DOI： 10.3788/OPE.20132102.0454.

WU Hou-de XU Wen-hai. Correction of seams for multiple output CCD [J]. Editorial Office of Optics and Precision Engineering, 2013,21(2): 454-461 DOI： 10.3788/OPE.20132102.0454.

摘要

针对多输出CCD传感器成像存在接缝的问题，提出了一种基于延时积分（TDI）的校正方法。使用TDI的读出方式对均匀光源成像获得了具有亮度线性渐变的图像数据，建立了获得图像的行平均灰度和行曝光时间关系的模型，通过该模型对CCD每路输出特性进行拟合，校正了CCD多输出的不均匀性，解决了图像接缝问题

并在模拟前端（AFE）完成了校正过程。本方法仅使用一次成像过程，避免了辐照度调整精度对校正精度的影响。与传统的两点法和多点法（16点）相比，提出方法的输出非均匀性分别减少了2.428%和 1.052%，校正效果明显提高。实验显示：本方法校正精度高，实验工作量低，可以广泛用于多输出CCD的接缝校正中。

Abstract

A new correction method based on the concept of Time Delay Integration (TDI) was proposed to eliminate the picture seams from a multiple output CCD. The TDI readout operation was used to capture the image under the illumination of a uniform light source

then a model to obtain the relationship between the line average gray level and the exposure time of the image was established. On the basis of the model

CCD output responses were fitted and the output non-uniformity was corrected. By the correction operations mentioned above

the seam correction was implemented in the analog domain of an Analog Front End (AFE).As only one image was needed for the correction method

the correction accuracy could not be affected by the illumination adjustment accuracy of uniform light source. Experiment results show that output non-uniformity by proposed method is 2.482% less than that of two-point method and 1.052% less than that of multi-point method (16 points)

which means that the method has better correction effect

less experimental workload and can be widely used in the seam correction of multiple output CCDs.

关键词

Keywords

references

阮锐.CCD技术在海洋测绘领域中的应用[J].海洋测绘,2011,31(3):80-82.RUAN R. Application of CCD technology in the field of hydrographic surveying and charting [J]. Hydrographic Surveying and Charting, 2011, 31(3):80-82. (in Chinese)[2]马庆军,宋克非,曲艺,等.紫外临边成像光谱仪CCD电路系统的设计[J].光学精密工程,2011,19(7):1538-1545.MA Q J, SONG K F, QU Y, et al.. Design of CCD circuit systems for ultraviolet limb imaging spectrometers [J]. Opt. Precision Eng., 2011, 19(7):1538-1545. (in Chinese)[3]孙泽林,王昭,李明.火炮稳定精度图像测试系统[J].光学精密工程,2012,20(1):157-164.SUN Z L, WANG ZH, LI M. Image test system for gun stabilization accuracy [J]. Opt. Precision Eng., 2012, 20(1): 157-164. (in Chinese)[4]张达，徐抒岩．高速多通道CCD信号并行处理系统[J].吉林大学学报（信息科学版）,2008,26(3):281-286.ZHANG D, XU SH Y. High-speed multi-channel CCD signal parallel processing system [J]. Journal of Jilin University (Information Science Edition), 2008,26(3):281-286. (in Chinese)[5]MARTA D L,JAUME P,MONTSERRAT A, et al.. Optimized algorithm for the spatial nonuniformity correction of an imaging system based on a charge-coupled device color camera [J]. Applied Optics, 2007, 46(2):167-174.[6]王文华,何斌,韩双丽,等.星上CCD成像非均匀性的实时校正[J]. 光学精密工程,2010,18(6):1420-1428. WANG W H, HE B, HAN SH L, et al.. Real-time correction of nonuniformity in CCD imaging for remote sensing [J]. Opt. Precision Eng., 2010, 18(6):1420-1428. (in Chinese)[7]TIMOTHY C W, CHRISTOPHER R S. Simultaneous correction of flat field and nonlinearity response of intensified charge-coupled devices [J]. Review of Scientific Instruments, 2007, 78: 123702.[8]LI T, HE M Y, LEI M, et al.. TDICCD non-uniformity correction algorithm [C]. ICIEA, 2009: 1483-1487.[9]TUESENSE IMAGING INC. Multiple Output Sensors Seams Correction [OL]. http://www.truesenseimaging.com，2009，4.[10]余达,郭永飞,周怀得,等.面阵CCD KAI-0340DM高速相机的设计[J]. 光学精密工程,2011,19(11):2791-2799. YU D,GUO Y F,ZHOU H D, et al.. Design of high speed camera system with area-CCD KAI-0340DM [J]. Opt. Precision Eng., 2011, 19(11):2791-2799. (in Chinese)[11]王海宁,魏仲慧,何昕. TDICCD相机的实验与研究[J]. 光学精密工程,1997,5(2):93-97. WANG H N, WEI ZH H, HE X. Experiment and research of TDI CCD camera [J]. Opt. Precision Eng., 1997, 5(2):93-97. (in Chinese)[12]王庆有.图像传感器应用技术[M].北京:电子工业出版社,2003. Wang Q Y. Applied Technology of Image Sensor [M]. Beijing: Publishing House of Electronics Industry, 2003. (in Chinese)[13]邓自立.最优估计理论及其应用[M]. 哈尔滨:哈尔滨工业大学出版社, 2005. DENG Z L. Optimal Estimation Theory with Applications [M]. Harbin: Harbin Institute of Technology Press,2005. ( in Chinese)[14]许文海,吴厚德.超高分辨率CCD成像系统的设计[J].光学精密工程,2012,20(7):1603-1610.XU W H, WU H D. Design of ultra-high resolution CCD imaging system [J]. Opt. Precision Eng., 2012, 20(7): 1603-1610. (in Chinese)

浏览量

305

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

时间延迟积分荧光显微成像平场校正技术

微流控实时荧光PCR成像非均匀性的校正