Compression & Decompression Techniques For Satellite E-O Images

Abstract: Image coding or compression is an important issue in case of E-O image transmission and storage. Elimination of spatial and/or temporal redundancy from sequential scene samples can be used to reduce the amount of required data to be transmitted or recorded to that needed to represent the “new” information in each sample set. The aim of image compression is to reduce the bandwidth or signal spectrum required by a radio relay data link and/or data recorder. It is also used so that more data can be carried over a channel with fixed bandwidth. Lowering the signal bandwidth permits reducing the power output required of the data link tra