Design of Radiation-Hardened Image Compressor Based on Lossless JPEG-LS

摘要

Image compressor in aerospace application is susceptible to single event effect, causing encoder logic errors and system errors. Therefore, the image compressor in aerospace application must be specially designed to improve the reliability of image information. Compression efficiency of JPEG-LS is higher than JPEG2000 and compression effect is better than lossless JPEG. Especially, JPEG-LS algorithm has the characteristics of low complexity and easy hardware implementation, which will save hardware resources of spaceborne system. An image compressor based on lossless JPEG-LS algorithm is designed in this paper, which can correctly compress 512×512 8-bit wide grayscale images. It is hardened by three-mode redundancy, Hamming code, timeout detection, one-hot code, and inter-process independently. The results point out that the error rate caused by SEU is significantly reduced 19.48% using the hardened compressor in this paper.