Linear Pushbroom Cameras

General Electric Corporate R&D 1 River Rd, Schenectady, NY, 12301 Ph: (518)-387-6190, Fax: (518)-387-6845 email : [email protected] Abstract: Modelling and analyzing pushbroom sensors commonly used in satellite imagery is difficult and computationally intensive due to the motion of an orbiting satellite with respect to the rotating earth, and the non-linearity of the mathematical model involving orbital dynamics. In this paper, a simplified model of a pushbroom sensor (the linear pushbroom model) is introduced. It has the advantage of computational simplicity while at the same time giving very accurate results compared with the full orbiting pushbroom model. Besides remote sensing, the linear pushbroom model is also useful in many other imaging applications.