文章基本信息

标题：Mechanical FMC techniques for removing image blur in digital aerial cameras
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作者：Özgür Selimoglu ; O. Yilmaz ; O. Sengül 等
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2010
卷号：XXXVIII - 1/W17
出版社：Copernicus Publications
摘要：Image blur caused by high speed motion is one of the main problems of aerial digital cameras. Removing image blur with special techniques is called Forward Motion Compensation (FMC) techniques. During the exposure time of the sensor, image of the same earth region moves more than many pixels on the sensor due to high speed, and causes image blur. Expensive TDI (time delay integration) sensors are now available and electronically compensate the motion within the sensor. In this article we propose mechanical compensation methods. During the exposure time, movement of the camera with proper angular speed will result in FMC. This can be achieved by pure older mechanical methods. Another method is to move the sensor linearly, proportional the speed of image walk. This can be provided by piezo-actuators. In this paper we present examples of these two mechanical FMC techniques. By these methods cheaper standard sensors can be used in digital aerial cameras
关键词：FMC; Image Blur; Piezo-actuators; Mechanical FMC