期刊
INTERNATIONAL JOURNAL OF REMOTE SENSING
卷 39, 期 7, 页码 1953-1970出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/01431161.2017.1334137
关键词
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资金
- Catalan Government [2014SGR-691]
- European Regional Development Fund (FEDER) [TIN2015-71126-R]
- Centre National d'Etudes Spatiales
- European Union (EU) [TIN2015-71126-R]
- Spanish Ministry of Economy and Competitiveness (MINECO) [TIN2015-71126-R]
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. 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.
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