Effect of aircraft attitude on imaging of CMOS aerial cameras

	Effect of aircraft attitude on imaging of CMOS aerial cameras
	Wan, L.; P. Jia; Y. Zhang and J.-H. Xiu
	2016
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
卷号	24 期号:1
摘要	In order to overcome the non-uniformity defects of image vignetting captured by camera in dot-to-dot correction on LED display screen, a vignetting correction method based on LED display screen and discrete position luminance measurement was put forward. First, the process of camera image acquisition and imaging features of LED display were analyzed. From this, a correction method of camera vignetting was proposed, a fitting surface of camera vignetting was obtained. Then, a vignetting correction factor matrix corresponding pixels on camera sensor was calculated. Using the above method, an experiment of single-box luminance correction of LED display screen was conducted. Experimental results indicate that the uniformity deviation of LED display screen can be narrowed from 6.69% to 1.49% after image vignetting factor calibration. After correction of camera image vignetting, non-uniformity surface distribution can be completely eliminated. Therefore, the center-dark, surround-bright defect on LED display screen is overcome, and the desired correction effect for multi-screens stitching display is achieved. 2016, Science Press. All right reserved.
文章类型	期刊
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/57215
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wan, L.,P. Jia,Y. Zhang and J.-H. Xiu. Effect of aircraft attitude on imaging of CMOS aerial cameras[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2016,24(1).
APA	Wan, L.,P. Jia,&Y. Zhang and J.-H. Xiu.(2016).Effect of aircraft attitude on imaging of CMOS aerial cameras.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,24(1).
MLA	Wan, L.,et al."Effect of aircraft attitude on imaging of CMOS aerial cameras".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 24.1(2016).

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