IMAGE MOTION AND ITS COMPENSATION FOR THE OBLIQUE FRAME CAMERA
Donald Kawachi · Photogrammetric engineering · 1965
There are three main causes of motion blur in aerial photography: the aircraft velocity, rotations of the aircraft, and vibration. Each of these produces a movement of the image which results in a significant resolution degradation, if not compensated. The image motion from the first two causes is examined in this three part series. The first part consists of an analysis of the image motion arising from the aircraft velocity for the oblique frame camera, with or without image motion compensation. The optimum type of shutter and IMC velocity for the tilted camera are analyzed, and the photographic distortions arising from the use of a focal-plane shutter are examined. Conversion equations from pitch, roll and yaw to tilt, swing and azimuth are included. In the second part, equations for the image-motion from aircraft rotations are derived for the tilted frame camera, from which the resolution loss can be computed. The image-motion equations for the panoramic camera from the aircraft velocity and rotations are derived in part 3. /AUTHOR/