基于二维DCT的医学图象压缩及FPGA实现  

Medical Image Compression Based on Two Dimensional Discrete Cosine Transform and Implemented on FPGA

作　　者：李小强[1] 岑人经[1] 吴效明[1] 吴凯[1] 

机构地区：[1]华南理工大学生物医学工程系,广东广州510640

出　　处：《中国医学物理学杂志》2006年第6期442-445,共4页Chinese Journal of Medical Physics

基　　金：广东省科技计划社会发展计划(2004B10401012)

摘　　要：本文介绍了一种适用于JPEG医学图象压缩的二维DCT的FPGA设计方案。该设计充分利用了可编程逻辑器件的灵活性以及器件本身所带的硬件资源,如嵌入式乘法器。二维离散余弦变换采用了行列分解的方法,并通过快速算法在很大程度上减少了硬件实现的复杂度,提高了模块的吞吐量,并且具有实时、高精度的优点。This paper describes a FPGA design for two dimensional Discrete Cosine Transform （2D-DCT） used in JPEG medical image compression. The design utilize embedded multipler in the programmable logic device. The architecture of 2D-DCT is based on the conventional row-column decomposition method. The implement of DCT by fast algorithm greatly reduces the hardware complexity, performs high throughput. It has the advantages of real-time and high accuracy.

关 键 词：FPGA 二维离散余弦变换 JPEG 医学图象压缩 

分 类 号：R318[医药卫生—生物医学工程]