Almost fixed quality rate-allocation under unequal scaling factors for on-board remote-sensing data compression

I. Blanes, M. Albinet, R. Camarero, J. Serra-Sagristà
2017 International Journal of Remote Sensing  
This article extends a rate-allocation method based on the Near-Lossless-Rate (NLR) complexity that is designed to operate on board spacecrafts, to include support for distortion scaling factors, such as those that are needed to code multi-and hyperspectral image when a spectral transform is employed. In this article, the conditions to achieve global minimum distortion are derived under the rate-distortion model based on the NLR complexity for the case of varying distortion scaling factors.
more » ... caling factors. Practical implementation issues are dealt with, and a rate-allocation method capable of operating under the constraints of on-board operation is provided. An exhaustive experimental validation of the rate allocation method is performed, reporting modest performances for low rates and close to optimal performances for high rates.
doi:10.1080/01431161.2017.1334137 fatcat:ahormoxprbesdn4mzjueluofq4