%0 Journal Article
%T Fast Implementation of 2D DCT/IDCT Based on Loeffler''''s Algorithm<br>一种基于Loeffler算法的快速实现2D DCT/IDCT的方法*
%A LUO Tian-xu
%A KUANG Ji-shun
%A <br>罗天煦
%A 邝继顺
%J 计算机应用研究
%D 2007
%I 
%X This paper presents a new Loeffler algorithm-based approach to two dimensional forward and Inverse Discrete Cosine Transform(2D DCT/IDCT) for image compressions.The 2D DCT/IDCT is implemented by two times of 1D DCT/IDCT due to the separability of the 2D DCT/IDCT.After the number of clock cycle has been properly lengthened and the operations during the cycle simplified,the 1D DCT/IDCT can be executed within 8 clock cycles at high speed.Experimental results show that our design cuts down 10% of hardware cost and saves 10% of time compared with some similar commercial IP cores.
%K 2D DCT/IDCT
%K Row-Column Classification
%K FPGA<br>二维离散余弦变换
%K 行列分解法
%K 现场可编程门阵列
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=BC62874D6FE04383561E15844F7AC4C3&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=CA4FD0336C81A37A&sid=A1266CF37D675CF1&eid=6ED15D8DCB279BC4&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=1&reference_num=14