A compression algorithm of multispectral images based on improved Karhunen-Loeve transform

	A compression algorithm of multispectral images based on improved Karhunen-Loeve transform
	Xu, D.-D.; T.-J. Fu; Y. Zhang; X.-X. Zhang and J.-Y. Ren
	2015
发表期刊	Guangdianzi Jiguang/Journal of Optoelectronics Laser
卷号	26 期号:6 页码:1200-1205
摘要	An effective compression algorithm of multispectral images based on discrete wavelet transform (DWT) and improved Karhunen-Loeve transform (KLT) is proposed in this paper. It could achieve better performance with effective combination of the two methods which convert the energy of images to a small number of coefficients. In order to reduce the most redundancy of space, it deals with each spectrum using fast 9/7 2-D DWT firstly. Then the spectral 1-D KLT is applied on the 2-D DWT coefficients to reduce spectral redundancy and spatial redundancy remnantly. Finally, entropy coding is executed to obtain the compressed code stream. Within 0.25-2.0 bit/pixel range, the average peak signal to noise ratio (SNR) of the proposed compression algorithm could be improved greatly compared with other approaches, which reduces the operating time and improves the performance of multi-spectral image compression algorithm, verifies the correctness and feasibility of our method. The work in this paper has a good reference value for similar cases. , 2015, Board of Optronics Lasers. All right reserved.
文章类型	期刊论文
收录类别	EI
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/56005
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Xu, D.-D.,T.-J. Fu,Y. Zhang,et al. A compression algorithm of multispectral images based on improved Karhunen-Loeve transform[J]. Guangdianzi Jiguang/Journal of Optoelectronics Laser,2015,26(6):1200-1205.
APA	Xu, D.-D.,T.-J. Fu,Y. Zhang,&X.-X. Zhang and J.-Y. Ren.(2015).A compression algorithm of multispectral images based on improved Karhunen-Loeve transform.Guangdianzi Jiguang/Journal of Optoelectronics Laser,26(6),1200-1205.
MLA	Xu, D.-D.,et al."A compression algorithm of multispectral images based on improved Karhunen-Loeve transform".Guangdianzi Jiguang/Journal of Optoelectronics Laser 26.6(2015):1200-1205.

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