Abstract
Earth observation satellites usually scan the ground at a fixed period to capture remote sensing images. It’s no doubt that there exists a strong correlation between images obtained at a small interval. This paper is devoted to the compression of spaceborne multispectral images and investigating the coding gain obtained by exploiting temporal correlation. To exploit temporal correlation, a temporal compensation (TC) scheme based on rate-distortion optimization (RDO) is proposed to remove redundancies between two adjacent-period multispectral images along temporal direction and a wavelet-based coding method is used to encode residue images. Experimental results indicate that the TC-based method produces significant improvement compared to those coding schemes of only exploiting spectral and spatial correlation.
This work was supported by the Chinese Natural Science Foundation (61201452).
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Li, S., Jia, L. (2016). Spaceborne Multispectral Image Compression by Exploiting Temporal Correlation. In: Bian, F., Xie, Y. (eds) Geo-Informatics in Resource Management and Sustainable Ecosystem. GRMSE 2015 2015. Communications in Computer and Information Science, vol 569. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-49155-3_16
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DOI: https://doi.org/10.1007/978-3-662-49155-3_16
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