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Architecture Design of EBC for JPEG2000

Abstract

JPEG2000是目前最新一代的静止图像压缩国际标准。相对于目前通用的JPEG标准提供了更高的压缩率、更优秀的低比特率压缩性能,并且具备了许多新的功能,比如:渐进传输、感兴趣编码、同时支持对不同类型图像的有损和无损压缩、良好的容错性、码率可控等。JPEG2000应用范围广泛,然而其运算复杂度高且对存储器空间需求大,在通用的嵌入式处理器上执行效率低,因此对于高速、实时的嵌入式应用场合,必须用ASIC设计来加快处理速度和提高效率。本论文针对JPEG2000的嵌入式块编码器(EBCOTT1)作研究,它在JPEG2000中运算时间最长,属于JPEG2000的关键和核心部分。它包含了两个子模块:位平面系...JPEG2000 system is the newest international standard for still image compression.The stardard not only offers better compression and superior low bit-rate performance but also provides a wide range of features and functionalities compared to conventional JPEG. such as progressive transmission by resolution and quality,region-of-interest coding,lossless and lossy compression of different types of...学位:工学硕士院系专业:计算机与信息工程学院电子工程系_电路与系统学号:20033001

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