On Accelerating the Computation of 2-D Discrete Cosine Transform in Image Processing

被引：4
|
作者：
Papakostas, G. A. [1 ]
Karakasis, E. G. [1 ]
Koulouriotis, D. E. [1 ]
机构：
[1] Democritus Univ Thrace, Dept Elect & Comp Engn, GR-67100 Xanthi, Greece
来源：
ICSES 2008 INTERNATIONAL CONFERENCE ON SIGNALS AND ELECTRONIC SYSTEMS, CONFERENCE PROCEEDINGS | 2008年
关键词：
discrete cosine transform; DCT; image slice representation; efficient computation;
D O I：
10.1109/ICSES.2008.4673343
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A novel methodology that improves the computation rate of the 2-D Discrete Cosine Transform (DCT) is proposed in this paper. By applying a new image decomposition scheme the Image Slice Representation (ISR) followed by the Image Block Representation (IBR) method, any gray-scale image can be described by a set of pixel blocks having certain intensity values. Based on this image representation, the computation of the 2-D DCT coefficients, useful for many image processing tasks, can be increased significantly. Appropriate experiments highlight the main advantages and establish the usefulness of the introduced method.
引用
收藏
页码：7 / 10
页数：4
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