摘要
基于均匀值量化压缩算法和AR模型算法,对干涉型超光谱成像仪直接产生的实际干涉图像序列进行了近无损压缩仿真实验.AR模型算法对残差采用Lloyd-Max量化器进行量化,对量化输出结果用Huff man编码器进行编码.分析了AR模型阶数对压缩性能的影响.结果指出,均匀值量化和AR模型算法均能满足干涉光谱图像序列压缩的要求.
Based on the uniform quantization and the AR model compression algorithm, simulated experiment is carried out for compressing the interferometric hyperspectral image series which were directly produced by the inlerferometric hyper spectro-imager. In AR model the Lloyd-Max quantizer is use to quantize the predicted residuals. The outpul of the quantizer is encoded by the Huffman encoder. The compression quality is analyzed. The uniform quantization and the AR model compression algorilhm can satisfied the requirement of the compression for the interferometric hyperspectral image series.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2007年第9期1672-1676,共5页
Acta Photonica Sinica
基金
国家自然科学基金(60532070)资助
