摘要
为了保证四孔径分布式全景光学系统采集到高品质图像,考虑像移对图像的影响,基于时间延时积分(TDI)电荷耦合器件(CCD)中令组合列逐渐曝光的原理,结合新的机械式像移补偿方法,以前向像移作为四孔径分布式全景系统的主要像移,采用焦面帘幕快门系统设计了像移的补偿装置,对帘幕宽度以及目标移动速度的公式进行了推导,保证了准确获取目标图像的细节。结果表明,设计合适的帘幕宽度可使相机逐行曝光成像,减少系统对于探测目标的曝光时间,将像移控制在不影响像质的范围内。
In order to obtaining high quality images of the four-aperture distributed optoelectronic panoramic detecting system,comprehensively considered the image motion factor which affect the image quality.Based on the production mechanism of TDI（Time Delay and Integra-tion） CCD image motion and new method of mechanical image motion compensation（IMC）,a set of image motion compensation system was designed.Determined forward image motion as a major motion for the panoramic system,the focal plane curtain shutter system was adopted to realize the compensation of major motion.At the same time,the formula of curtain width and shutter speed was derived to ensure the accuracy of the image detail.The result show that the focal plane curtain shutter system was adopted can design reasonable slot width,the CCD line-based exposure during the exposure,by means of shortening exposure time for the purpose of minimizing image motion and enhancing image clarity.
出处
《国外电子测量技术》
2012年第1期48-51,共4页
Foreign Electronic Measurement Technology
关键词
孔径分布
全景系统
像移补偿
aperture distribution
panoramic system
image motion compensation（IMC）
