Fixed-Quality Compression of Remote Sensing Images With Neural Networks.
IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens.(2024)
Abstract
Fixed-quality image compression is a coding paradigm where the tolerated introduced distortion is set by the user. This paper proposes a novel fixed-quality compression method for remote sensing images. It is based on a neural architecture we have recently proposed for multirate satellite image compression. In this paper, we show how to efficiently estimate the reconstruction quality using an appropriate statistical model. The performance of our approach is assessed and compared against recent fixed-quality coding techniques and standards in terms of accuracy and rate-distortion, as well as with recent machine learning compression methods in rate-distortion, showing competitive results. In particular, the proposed method does not introduce artefacts even when coding neighbouring areas at different qualities.
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Key words
Remote sensing,Data compression,Neural networks,Neural network applications,Optical data processing
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