Design And Implementation Of Onboard Aircraft Mapping Image Compression And Storage System

As a novel technique used for landform mapping in the field of remote sensing,Unmanned Aerial Vehicle (UAV) mapping has the characteristics of its flexibility,efficiency, accuracy, and low cost. In recent years, with the development ofcommunication industry and sensor technology, the UAV mapping system has beengradually maturated, and plays an increasingly important role in the field of mapping.However, with the higher image resolution and the more mapping missions result inthe growing amount of mapping images data. Accordingly, it is significantly importantto develop a reliable and efficient image compression storage system.For some requirements of one specific UAV mapping image compression mission,an overall image compression storage system based on FPGA is introduced in thispaper. Firstly, an overview of the image compression algorithm, Set Partitioning inHierarchical Trees (SPIHT) algorithm, and the storage device, Compact Flash (CF)card, in this system are given. And simple comparisons of the algorithm compressionperformance and the device storage capability with others are made respectively.Followed by those, the FPGA based design and implementation of this system isintroduced. At the end the system’s test results are also provided.Actually, the system function and performance have met the mission requirements,and it has been used in the corresponding airborne platform.