论SPIHT压缩编码的SAR图像传输容错算法  

On Fault Tolerant SAR Image Transmission Algorithms for SPIHT Compression Coding

作　　者：甘赟[1] 赵李文博 Gan Yun;Zhao Liwenbo

机构地区：[1]海口经济学院,海南海口570100

出　　处：《数码设计》2019年第8期1-2,共2页Peak Data Science

基　　金：2018年海口经济学院校级科研课题(基于图像压缩与编码技术的研究)项目编号:hjkz18-02.

摘　　要：LLCH算法统称为传输容错算法,传输容错算法主要是一种噪声信道中的传输SAR图像传输形式,即能幅度性压缩所表现的图像。这种SAR图像传输的性能主要体现在适用其优势的多级集合分裂式算法,该算法的一大优势点又是对于信道的噪音点特别敏感,可以快速结合SPIHT压缩编码的码流程度性进行数据分组,分组适用于之后的数据分析,可以最大化保障其图像传输容错算法出现解码失误现象,快速进行码流解码端同步更新,减低数据信息的码流中低频,次低频系数嵌入高端频率发生故障的频率,这是多信息频率下对数据分组及隐藏的最好方式。即能够在限定的区域范围内保障SAR图像传输容错算法中的系数,防止损伤以及丢失掉有利的高频系数信息。本文就SPIHT压缩编码的SAR图像传输容错算法进行深度分析,结合合成孔径系统中工作时输出的信息数据探讨研究,同时针对其数据所需的压缩传输方式,整合其最高效的SPIHT压缩编码的SAR图像传输容错算法,提升其复原图像的质量以及效率。LLCH algorithm is generally referred to as the transmission fault-tolerant algorithm.The transmission fault-tolerant algorithm is mainly a transmission form of SAR image in the noise channel,namely the image that can be compressed by amplitude.The performance of the SAR image transmission is mainly embodied in the apply the advantages of multilevel collections division algorithm,the algorithm is a big advantage of points is especially sensitive to channel noise point,can be quickly combined with SPIHT coding stream of data grouping,after the grouping is suitable for the analysis of data,can maximize guarantee the decoding error phenomenon in a fault-tolerant algorithm,image transmission stream decoding end synchronization update quickly,reduce the code flow of data and information in low frequency,time of the failure of low frequency coefficient of embedded high frequency and frequency,which is more information under the frequency of data packet and the best way to hide.That is to say,it can guarantee the coefficient in the fault-tolerant algorithm of SAR image transmission within a limited range,and prevent damage and loss of favorable high-frequency coefficient information.In this paper,the SAR image transmission fault tolerance of SPIHT coding algorithm in-depth analysis,combined with the synthetic aperture system output information data to explore research at work,at the same time required for its data compression transmission mode,integrate their most efficient SPIHT compression of SAR image transmission fault-tolerant algorithm,improve the quality of the restored image and efficiency.

关 键 词：PIHT压缩编码 SAR图像 传输容错算法 

分 类 号：TN957.52[电子电信—信号与信息处理]