Aerial camera image focusing method based on out-of-phase differential filtering effect

Qi Kang; Lina Zheng; Haijiang Wang

doi:10.3788/IRLA20200432

[1] Xixi Meng, Huajun Feng, Zhihai Xu. Autofocus method for scanning remote sensing cameras. Applied Optics, 54, 6351-6359(2015).

[2] Chen Zhichao. Research on realtime phase detection auto focus technique of long focus airbne camera based on RC optical system[D]. Changchun: Changchun Institute of Optics, Fine Mechanics Physics, Chinese Academy of Sciences, 2016. (in Chinese)

[3] Lina Zheng, Yanwei Li, Guoqin Yuan, et al. Automatic focus plane detection of aerial remote camera based on visibility. Infrared and Laser Engineering, 43, 236-241(2014).

[4] Meng Fanhao. Study on the application of autofocus technique based on image processing technology in aerial camera[D]. Changchun: Changchun Institute of Optics, Fine Mechanics Physics, Chinese Academy of Sciences, 2016. (in Chinese)

[5] Qihui Li, Yalin Ding, Jihong Xiu, et al. A self-collimation focusing method based on image processing. Advances in Laser and Optoelectronics, 57, 021104(2020).

[6] Lina Zheng, Haipeng Kuang, Wenming Li, et al. Method of pedestal component elimination based on line CCD for spatial-filter velocimetry signal. Journal of Optics, 34, 0211001(2014).

[7] Zheng Lina. Research on high precision Speedtoheight ratio measurement technology of aerial camera[D]. Changchun: Changchun Institute of Optics, Fine Mechanics Physics, Chinese Academy of Sciences, 2013. (in Chinese)

[8] Lina Zheng, Tao Zhang, Haipeng Kuang, et al. Image motion velocity measurement technique based on spatial filtering effect of linear array CCD for aerial remote camera. Journal of Optics, 32, 1112002(2012).

[9] Lina Zheng, Yanwei Li. SFV spatial filtering characteristics of rectangle spatial filter. Infrared and Laser Engineering, 43, 472-475(2013).

[10] Zhaolin Xu, Yuliang Zhao, Guodong Zhang, et al. Design of an auto-focusing system for a new type of aerial camera. Electronics Optics & Control, 18, 77-80(2011).

[11] Zhenhua Lu, Yongfei Guo, Hongfa Li, et al. Auto-focus using LSF in aerial push-broom remote-sensing camera. Infrared and Laser Engineering, 41, 1808-1814(2012).

[12] J T Ator. Image velocity sensing with parallel-slit reticles. Journal of the Optical Society of America, 53, 1416-1422(1963).

[13] Guixia Cai, Weixian Qian, Jinqing Yang, et al. Pulse laser ranging technique based on differential signal time discrimination method. Infrared and Laser Engineering, 48, 1205001(2019).

[14] Fanhao Meng, Yalin Ding, Dejiang Wang, et al. Analysis of influence of image motion on auto-focus precision for high resolution aerial camera. Journal of Optics, 35, 73-80(2015).

[15] Dejie Yan, Shuyan Xu, Chengshan Han. The influence of aircraft attitude on image motion compensation of space camera. Optics and Precision Engineering, 16, 2219-2203(2008).