有损行程编码方法研究  

Research On Lossy Run-length Encoding Method

作　　者：万建邦[1] 林小竹[2] 

机构地区：[1]北京化工大学,北京100029 [2]北京石油化工学院信息工程学院,北京102617

出　　处：《仪器仪表学报》2004年第z1期645-646,共2页Chinese Journal of Scientific Instrument

摘　　要：传统的行程编码是一种简单有效的数据压缩编码方法,在信源编码中属于统计编码无损压缩的范畴。在此基于对传统行程编码方法的研究与改进,结合离散余弦变换这一较常用的变换编码方法,针对位图图像的压缩编码,提出了一种新的有损行程编码方案,并通过应用实例的比例分析,证明了该方案的可行性。The run-length encoding method is a concise and efficiency encoding method for digital compression,and it has been widely used in many fields of digital encoding.The run-length encoding method is a lossless encoding method for compression.This method was improved,and a new lossy run-length encoding method for compression of bitmap images combined with the discrete cosine transform was proposed,which is a commonly used transforming encoding method.This new method has been proved feasible by some analyses of instances.

关 键 词：位 图 无损压缩 有损压缩 行程编码 离散余弦变换 量 化 

分 类 号：TH7-55[机械工程—仪器科学与技术]