中国光学Issue(6)：863-867,5.DOI:10.3788/CO.20130606.0863
基于谱间和帧内差分脉冲编码调制的超光谱图像无损压缩
Hyper-spectral image lossless compressing based on spectral DPCM and intra-DPCM
王军1
作者信息
- 1. 中国航天科工集团第九总体设计部，湖北武汉430040
- 折叠
摘要
Abstract
By focusing on hyper-spectral remote sensing images , the spectral correlation and spatial correlation of images from an interferential imaging spectrometer was analyzed .A 3 D Differential Pulse Code Modulation ( DPCM) lossless compression scheme was submitted .This scheme includes three aspects:spectral DPCM, in-tra-DPCM to prediction error image and adaptive bit-level arithmetic coding to differential coefficients .The ex-perimental data show that the algorithm has achieved lossless compression and the average of compression ratio is up to 1.662, 15.6% increasement in comparison with that of the 2D integer wavelet transform .This algo-rithm uses addition-subtration and shifts to complete data compression , which is easier for hardware implemen-tation.关键词
超光谱图像/无损压缩/谱间差分脉冲编码调制/帧内差分脉冲编码调制/二值自适应算术编码Key words
hyper-spectral image/lossless-compressing/spectral Differential Pulse Code Modulation ( DPCM)/intra-DPCM/adaptive bit-level arithmetic coding分类
信息技术与安全科学引用本文复制引用
王军..基于谱间和帧内差分脉冲编码调制的超光谱图像无损压缩[J].中国光学,2013,(6):863-867,5.
