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作者:

Chai, Yan (Chai, Yan.) | Ji, Wen-Ping (Ji, Wen-Ping.) | Shen, Lan-Sun (Shen, Lan-Sun.)

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摘要:

Using the spatial and spectral correlation within the hyperspectral images, a lossless compression algorithm is presented. Band grouping is used to divide images into different groups. Different hybrid integer transform based on spatial/spectral correlation is taken for each group and to achieve progressive bit-stream, coefficients are reorganized to obtain the same structure as wavelet transformation. Transformation coefficients are then coded by bit-plane-based 3D-SPIHT coding algorithm. Experimental results show that the proposed method can remove the spatial and spectral redundancy more efficiently than JPEG-LS, JPEG2000 and the algorithms based on integer 3D-DCT or 3D-DWT. With band grouping and progressive bit-stream, the proposed method can achieve better error resilient performance.

关键词:

Algorithms Bit error rate Correlation methods Discrete cosine transforms Discrete wavelet transforms Image coding Image compression Mathematical transformations Redundancy Remote sensing Three dimensional

作者机构:

  • [ 1 ] [Chai, Yan]Signal and Information Processing Laboratory, Beijing University of Technology, Beijing 100022, China
  • [ 2 ] [Ji, Wen-Ping]Signal and Information Processing Laboratory, Beijing University of Technology, Beijing 100022, China
  • [ 3 ] [Shen, Lan-Sun]Signal and Information Processing Laboratory, Beijing University of Technology, Beijing 100022, China

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来源 :

Acta Electronica Sinica

ISSN: 0372-2112

年份: 2007

期: 9

卷: 35

页码: 1770-1773

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