YAN Jing-wen, SHEN Gui-ming, Hu Xiao-yi, et al. 3D Multispectral Imagery Data Compression Based on KLT/WT a nd VQ with Spectral-feature-coding[J]. Journal of Remote Sensing, 2000,(4):290-294.
YAN Jing-wen, SHEN Gui-ming, Hu Xiao-yi, et al. 3D Multispectral Imagery Data Compression Based on KLT/WT a nd VQ with Spectral-feature-coding[J]. Journal of Remote Sensing, 2000,(4):290-294. DOI: 10.11834/jrs.20000409.
In this paper we propose a new method for multispec tr al image data compression based on Karhunen-Leove Transformation (KLT)/Wavelet Transformation (WT) and VQ with Spectral Feature Coding(SFCVQ). After KLT is app lied to multispectral image data for exploiting the spectral correlation
the Wa velet Transformation (WT) is used for the transformed multispectral image data t o remove spatial redundancy. Then the SFCVQ is designed to compress every spectr al image data. A higher compression performance is obtained. Experimental result s shows that in comparison of the methods of KLT/WT/SFCVQ with KLT/KLT/VQ
under the condition of the same Compression Ratio ( CR )
the Peak Signal to Noise Ratio ( PSNR ) is not varied apparently
while the compression speed increase s 30folds
or 5folds compared with the KLT/WT/FSVQ
and the total compression pe rformance has a great enhancement.
关键词
KLT小波变换矢量量化数据压缩
Keywords
KLTwavelet transformationvector quantization with spectral feature codingdata compression