A Real-Time High Performance Data Compression Technique For Space Applications

摘要

A high performance lossy data compression technique is currently being developed fro space science applications under the requirement of high-speed push-broom scanning. The technique is also error-resilient in that error propagation is contained within a few scan lines. The algorithm is base on block-transform combined with bit-plane encoding; this combination results in an embedded bit string with exactly the desirable compression rate. The lossy coder is described. The compression scheme performas well on a suite of test images typical of images from spacecraft nstruments. Hardware implementations are in development; a functional chip set is expected by the end of 2000.