Tao Minghui, Zhang Yu, Zhang Xingxiang, Ren Jianyue, Li Yapeng. Vignetting correction technology of images based on degenerate model[J]. Infrared and Laser Engineering, 2013, 42(8): 2262-2268.
| Citation:
|
Tao Minghui, Zhang Yu, Zhang Xingxiang, Ren Jianyue, Li Yapeng. Vignetting correction technology of images based on degenerate model[J]. Infrared and Laser Engineering, 2013, 42(8): 2262-2268.
|
Vignetting correction technology of images based on degenerate model
- 1.
Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;
- 2.
University of Chinese Academy of Sciences,Beijing 100049,China
- Received Date: 2012-12-15
- Rev Recd Date:
2013-03-14
- Publish Date:
2013-08-25
-
Abstract
Topic of the paper was to correct the vignetting of mosaic images based on reflector. The generation mechanism of the vignetting phenomenon was analyzed through geometrical optics, and the vignetting energy distribution model in the middle of the optical field was proposed. According to the analysis result, a degenerate model which was calculated by the steepest descent method was proposed. The parameters of Hesse matrix were deduced to solve the problem of irregular quadrics fitting, then to correct the vignetting. The experiment result illuminates that the parameters of the degenerate model can be estimated effectively, the image's SNR after correction can be increased by 15 dB, and the vignetting can be removed effectively. The method can work in real-time working mode, and has extensive application value.
-
References
|
[1]
|
Li Yapeng, He Bin. Quantitative evaluation of image quality of CCD subpixel imaging using MTF[J]. Infrared and Laser Engineering, 2013, 42(2): 443-448. (in Chinese)李亚鹏, 何斌. 采用 MTF 定量评估 CCD 错位成像的成像质量[J]. 红外与激光工程, 2013, 42(2): 443-448. |
|
[2]
|
Zhang Xingxiang, Ren Jianyue. Mechanical interleaving assembly of TDICCD focal plane[J]. Acta Optical Sinica, 2006, 26(5): 740-745. (in Chinese)张星祥, 任建岳. TDICCD 焦平面的机械交错拼接[J]. 光学学报, 2006, 26(5): 740-745. |
|
[3]
|
Chen Shiping. Design and Experiment of Space Camera[M].Beijing: Chinese Aerospace Press, 2003. (in Chinese)陈世平. 空间相机设计与试验[M]. 北京: 中国宇航出版社, 2003. |
|
[4]
|
Kaneko Y, Saitoh M, Hamaguchi I, et al. Image forming apparatus for forming image corresponding to subject, by dividing optical image corresponding to the subject into plural adjacent optical image parts: US, Patent 5, 194, 959[P]. 1993-03-16. |
|
[5]
|
Lei Hua. Research on an seamless optical butting technology based on pyramid reflector[D]. Hangzhou: Zhejiang University, 2010. (in Chinese)雷华. 基于金字塔反射镜的视场无缝拼接技术研究[D]. 杭州: 浙江大学, 2010. |
|
[6]
|
Rubin, Leoind Borisovich Moseow S L, Viktor Vladimirovich Moseow S R, et al. Optical system for partitioning a real image: US, Patent 5: 835, 278[P]. 1993. |
|
[7]
|
Ma Wenli, Ye Baozhu, Zou Dechun. High accuracy optical focal plane assembling of ten pieces of plane array CCD[J]. Opto-Electronic Engineering, 1994, 21(5): 17-22. (in Chinese)马文礼, 叶宝珠, 邹德春. 高精度10片面阵CCD光学焦平面拼接[J]. 光电工程, 1994, 21(5): 17-22. |
|
[8]
|
Sun Wei, Wang Zhijian. Fuzzy edge detection based on standard deviation gradient[J]. Infrared and Laser Engineering, 2005, 34(4): 454-458. (in Chinese)孙伟, 王志坚. 基于标准差梯度的模糊边缘检测算法[J]. 红外与激光工程, 2005, 34(4): 454-458. |
|
[9]
|
He Kai, Tang Pingfan, Wang Chengyou. Vignetting correction method of image based on Guassian quardrics fitting[J]. Acta Electronica Sinica, 2009, 37(1): 67-71. (in Chinese)何凯, 唐平凡, 王成优. 基于高斯曲面拟合的影像渐晕复原方法[J]. 电子学报, 2009, 37(1): 67-71. |
|
[10]
|
Zhu Kongfeng, Jiang Wei, Wang Duanfang, et al. New kind of clarity-evaluation-function of image[J]. Infrared and Laser Engineering, 2005, 34(4): 464-468. (in Chinese) |
-
-
Proportional views
-
DownLoad: