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1. 绍兴文理学院计算机科学与工程系,浙江 绍兴 312000
2. 同济大学超大规模集成电路研究所,上海 200092
[ "赵利平(1984-),女,博士,绍兴文理学院计算机科学与工程系讲师,主要研究方向为高效视频编码、屏幕图像编码。" ]
[ "林涛(1958-),男,博士,同济大学超大规模集成电路研究所教授,长江学者特聘教授,主要研究方向为高效视频编码、屏幕图像编码、多媒体芯片设计等。" ]
[ "周开伦(1977-),男,博士,同济大学超大规模集成电路研究所讲师,主要研究方向为视频编码,超大规模集成电路架构、设计与验证。" ]
[ "彭华(1980-),男,博士,绍兴文理学院计算机科学与工程系讲师,主要研究方向为仿脑智能系统、人—机器人交互和机器学习。" ]
[ "胡珂立(1989-),男,博士,绍兴文理学院计算机科学与工程系讲师,主要研究方向为图像处理、目标跟踪。" ]
网络出版日期:2018-11,
纸质出版日期:2018-11-20
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赵利平, 林涛, 周开伦, 等. 一种基于字节型多变长码的串匹配的Alpha图像编码算法[J]. 电信科学, 2018,34(11):96-104.
Liping ZHAO, Tao LIN, Kailun ZHOU, et al. A byte-size multi-variable-length-code based string matching algorithm for Alpha image coding[J]. Telecommunications science, 2018, 34(11): 96-104.
赵利平, 林涛, 周开伦, 等. 一种基于字节型多变长码的串匹配的Alpha图像编码算法[J]. 电信科学, 2018,34(11):96-104. DOI: 10.11959/j.issn.1000-0801.2018285.
Liping ZHAO, Tao LIN, Kailun ZHOU, et al. A byte-size multi-variable-length-code based string matching algorithm for Alpha image coding[J]. Telecommunications science, 2018, 34(11): 96-104. DOI: 10.11959/j.issn.1000-0801.2018285.
根据 Alpha 图像的特征和串匹配算法的编码参数统计特性,提出了一种基于字节型多变长码的串匹配的 Alpha 图像编码算法。该算法首先对多个串匹配编码参数采用字节型多变长码方案进行联合优化编码,然后采用邻近偏移量优先的分段映射方案对偏移量参数进行编码,最后对匹配串长度参数采用分段编码方案进行编码。实验结果表明,本文提出的算法与LZ4HC、zlib、PNG、HEVC(x265)相比,都具有超低复杂度兼高编码效率的优势。
According to the characteristics of Alpha image and the statistical characteristics of coding parameters of string matching algorithm
an Alpha image coding algorithm based on byte-size multi-variable long-length string matching was proposed.The algorithm firstly used a byte-type multi-variable long-code scheme for joint optimization coding of multiple string matching coding parameters
the offset parameter was then encoded using a segmentation mapping scheme with proximity offset prioritization.Finally
the matching string length parameter was matched with a segmentation coding scheme.The experimental results show that compared with LZ4HC
zlib
PNG and HEVC (x265)
the proposed algorithm has the advantages of ultra-low complexity and high coding efficiency.
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