标题：Differential prediction-based lossless compression with very low-complexity for hyperspectral data
作者：Song, Hongjia ;Song, Zhenzhen ;Deng, Guangxing ;Ma, Yanhua ;Ma, Piming
作者机构：[Song, Hongjia ;Song, Zhenzhen ;Deng, Guangxing ;Ma, Piming ] School of Information Science and Engineering, Shandong University, Jinan 250100, China; 更多
会议名称：2011 IEEE 13th International Conference on Communication Technology, ICCT 2011
会议日期：25 September 2011 through 28 September 2011
来源：International Conference on Communication Technology Proceedings, ICCT
关键词：Context-based adaptive predictor; FPGA implementation; Huffman coding; MED predictor
摘要：This paper presents Optimized Combination Coding (OCC) as a differential prediction-based (DP-based) lossless compression scheme for hyperspectral data with very low complexity. The main modules of OCC scheme consist of two predictors and Huffman codec. The pixels are processed differently according to their location in the image. The prediction errors between predicted and real pixel gray value are encoded ultimately into variable-length codewords attached to the binary code stream by Huffman codebook. Furthermore, the comparison between JPEG-LS algorithm and OCC scheme shows that optimized compression parameter of JPEG-LS algorithm slightly outperforms the scheme, however, the level of complexity described is fairly lower than the JPEG-LS ones. Additionally, several key issues of the codec implementation by means of FPGA technique are introduced. © 2011 IEEE.