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专利名称: 一种空谱联合预测的高光谱图像无损压缩方法
其他题名: Spatial-spectral associated prediction-based hyperspectral image lossless compression method
作者: 史泽林; 陈永红; 罗海波
所属部门: 自动化系统研究室
专利权人: 中国科学院沈阳自动化研究所
专利代理: 沈阳科苑专利商标代理有限公司 21002
专利国别: 中国
专利类型: 发明授权
专利状态: 有效
摘要: 本发明涉及一种空谱联合预测的高光谱图像无损压缩方法,包括以下步骤:根据谱间相关系数的大小,对输入高光谱图像进行波段组合;根据不同的波段组合选择相应的预测算法消除相关性,得到差值图像;对差值图像进行RICE熵编码,得到压缩码流,进行存储或传输,在本地或异地实现可逆解码。本发明方法可有效地降低整幅图像的空谱冗余,减少了编码计算量,整个编码过程不会丢失任何信息,实现了无损压缩,提高了高光谱图像的无损压缩比,降低存储图像所需的存储资源,减轻了传输带宽负担,编码复杂度低,易于硬件实现和实时传输,并具有较好的抗误码能力。
英文摘要: The invention relates to a spatial-spectral associated prediction-based hyperspectral image lossless compression method, which comprises the following steps: conducting band combination to input hyperspectral images according to the magnitude of a spectrum correlation coefficient; selecting corresponding prediction algorithms according to different band combinations to eliminate correlation and to obtain a difference image; and conducting RICE entropy coding to the difference image to obtain a compressed code stream, storing or transmitting the compressed code stream and realizing reversible decoding locally or at other places. By adopting the method, the invention has the advantages that the spatial-spectral redundancy of the entire image can be effectively reduced, the calculated amountfor coding is reduced, no information is lost in the entire coding process, the lossless compression is realized, the lossless compression ratio of the hyperspectral image is improved, the storage resource required for image storage is reduced, the transmission bandwidth burden is reduced, the coding complexity is low, the hardware realization and the real-time transmission are facilitated and the error resilience is good.

[en;CN101883274A]

是否PCT专利:
申请日期: 2009-05-08
公开日期: 2010-11-10
授权日期: 2013-05-22
专利申请号: CN200910011461.8
公布/公告号: CN101883274B
语种: 中文
产权排序: 1
内容类型: 专利
URI标识: http://ir.sia.cn/handle/173321/14329
Appears in Collections:自动化系统研究室_专利

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