Title :
Multi-dimensional vector discrete cosine transform coefficients matrix scan mode for image compression
Author :
Sang, Aijun ; Cong, Lin ; Fu, Ping ; Deng, Linlin
Author_Institution :
Sch. of Commun. Eng., Jilin Univ., Changchun, China
Abstract :
It has been show that efficient scan technique serves to enhance the performance of image compression. In this paper, we study means of improving multi-dimensional discrete cosine transform (DCT) coding by proposing two scan modes for three-dimension (3-D) DCT coefficient matrix. Then we conduct compression processing on color image based on four-dimensional (4-D) vector DCT orthogonal transform. Simulation results demonstrate that the proposed modes provide better compression performance than JPEG.
Keywords :
data compression; discrete cosine transforms; image coding; image colour analysis; matrix algebra; transform coding; 3D DCT coefficient matrix; 4D vector DCT orthogonal transform; DCT coding; DCT coefficients matrix scan mode; color image; image compression; multidimensional vector discrete cosine transform coding; Codecs; Color; Digital images; Discrete cosine transforms; Discrete transforms; Electronic mail; Image coding; Image storage; Quantization; Videos; discrete cosine transform (DCT); image compression; multi-dimensional vector matrix; quantization; scan mode;
Conference_Titel :
Future Computer and Communication (ICFCC), 2010 2nd International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-5821-9
DOI :
10.1109/ICFCC.2010.5497296
