FPGA implementation of the JPEG XR for onboard earth-observation applications

• Published in: Journal of real-time image processing Vol. 18; no. 6; pp. 2037 - 2048
• Main Authors: Lopes Filho, Antonio, d’Amore, Roberto
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2021; Springer Nature B.V
• Subjects: Algorithms; Computer Graphics; Computer Science; Field programmable gate arrays; Hardware; Image compression; Image Processing and Computer Vision; Multimedia Information Systems; Original Research Paper; Pattern Recognition; Power consumption; Remote observing; Remote sensing; Satellite observation; Satellites; Signal,Image and Speech Processing; Software; Keywords; Image processing; FPGA; Remote sensing; JPEG XR
• ISSN: 1861-8200; 1861-8219
• DOI: 10.1007/s11554-021-01078-y

As a more recent option for low-complexity compression, the transform-based JPEG XR standard accepts an extended range of input formats and provides good low-loss compression. Based on the performance in software of the JPEG XR compression to process remote-sensing images and foreseeing applications onboard small earth-observation satellites, the JPEG XR algorithm was implemented and evaluated in FPGA. The VHDL code was developed and evaluated in two parts, the transform/quantization/prediction and the DC/LP/HP encoding, which were then merged into the complete JPEG XR description. The results of the real-time evaluation were compared to the predictive-differential JPEG LS compression, in a similar hardware test setup, and also to other JPEG XR hardware implementations, and showed up a good trade-off between a throughput of 16 Mpix/s and a power consumption of about 180 mW, at a 50 MHz clock frequency. Better results were estimated for a more recent FPGA version at a higher frequency.