期刊
INTERNATIONAL JOURNAL OF REMOTE SENSING
卷 39, 期 7, 页码 2001-2021出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/01431161.2017.1343515
关键词
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资金
- Spanish Ministry of Economy and Competitiveness (MINECO)
- European Regional Development Fund (FEDER)
- European Union (EU) [TIN2015-71126-R]
- Catalan Government [2014SGR-691]
- Universitat Autonoma de Barcelona [UAB-PIF-472/2012, UAB-PIF-472/2015]
Progressive Lossy-to-Lossless (PLL) coding techniques enable a gradual quality improvement of the recovered images, starting from a coarse approximation up to a perfect reconstruction. PLL is becoming a widespread approach in several scenarios, in particular, for compression of hyperspectral images. In this paper we assess the suitability of Regression Wavelet Analysis (RWA) for hyperspectral image progressive lossy-to-lossless coding. RWA is a recent spectral transform that combines a wavelet transform with a regression stage, providing excellent coding performance for lossless compression. When coupled with a pyramidal predictive weighting scheme, RWA also yields very competitive coding results for PLL at a low computational cost. Coding performance is assessed within the framework of Joint Photographic Experts Group (JPEG) 2000 standard, comparing RWA against state-of-the-art spectral transforms, including reversible Karhunen-Loeve Transform (rKLT) and Pairwise Orthogonal Transform (POT). Comparison with respect to Multiband Context-based Adaptive Lossless/Near-Lossless Image Coding (M-CALIC) technique is also provided. Experiments are conducted on uncalibrated and calibrated hyperspectral images from Airborne Visible/Infrared Imaging Spectrometer (AVIRIS), satellite-borne Hyperion and Infrared Atmospheric Sounding Interferometer (IASI) sensors. Discussion embraces rate-distortion performance, bit-per-pixel-per-component rate distribution and classification outcome.
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