计算机科学 ›› 2016, Vol. 43 ›› Issue (11): 317-321.doi: 10.11896/j.issn.1002-137X.2016.11.062
• 图形图像与模式识别 • 上一篇
唐国维,张岩,李井辉,慕林洹
TANG Guo-wei, ZHANG Yan, LI Jing-hui and MU Lin-huan
摘要： 岩心图像作为石油地质分析和地球物理勘探的重要信息来源,数据量巨大、纹理信息丰富且对比度较弱。提出一种基于分形维的小波包EBCOT岩心图像压缩方法。对岩心图像进行完全小波包分解,以分形维作为代价函数,并以差分计盒法计算每个子带节点的分形维数。通过比较父节点和子节点分形维数值实现剪支以获取最优小波包分解,结合EBCOT算法对岩心图像进行压缩处理。实验结果表明,所提算法的重构图像的PSNR与SSIM值均高于基于熵的小波包压缩算法和JPEG2000算法。
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