1.5Gbit/S 4.9W Hyperspectral Image Encoders On A Low-Power Parallel Heterogeneous Processing Platform

This work explores the utilization of low-power heterogeneous devices for parallelizing the compute-intensive hyper-spectral and multispectral image compression CCSDS-123 entropy encoders. Multithread processing allows for the near-optimal systems bandwidth to be exploited increasing the system overall performance. The experimental platform consists of a low-power Jetson TX2 GPU equipped with an ARM Cortex-A57 and Denver 2 host processors, reporting more than 1552Mb/s and, more importantly, 315 Mb/s/W, all running under a global 5 W power budget, which makes it a good candidate for mobile onboard image compression.