计算机与数字工程Issue(8):1481-1485,5.DOI:10.3969/j.issn1672-9722.2015.08.026
基于空间-时间多预测模式的无损压缩方法
An Interframe Lossless Compression Method Based on the Mode of Space-Time Multi-Predictor
摘要
Abstract
Prediction is an important means of lossless compression decorrelation .For the sequence of satellite images , considering its relevance in space and time to improve the JPEG-LS algorithm which is only based on the spatial information , the image is divided into several blocks by taking into account different characteristics of different regions of the image .Each sub-block adaptively selects an optimal prediction template and prediction mode ,in which the accumulated absolute value of prediction error is the smallest .The higher compression ratio is obtained by using the optimal template and predictor .关键词
图像压缩/无损压缩/帧间压缩/JPEG-LSKey words
image compression/lossless compression/interframe compression/JPEG-LS分类
信息技术与安全科学引用本文复制引用
周雨田,左芝勇,张天序,兰霞,姚守悝,邓丽华..基于空间-时间多预测模式的无损压缩方法[J].计算机与数字工程,2015,(8):1481-1485,5.基金项目
国家自然科学基金重点资助项目(编号61433007);国家自然科学基金科学仪器专项资助项目(编号61227007)资助。 ()