Title :
A block-based DCT and multiresolution reordering scheme for high resolution image coding
Author :
Zhen, Haihua ; Shi, Min ; Yi, Qingming
Author_Institution :
Coll. of Inf. Sci. & Technol., Jinan Univ., Guangzhou, China
Abstract :
A scheme for high resolution image coding is proposed in this paper. In this scheme, 8×8 block-based DCT and multiresolution reordering is performed on the input image to obtain three-level wavelet-like tree structure. The same procedures are performed repeatedly on LL subband to obtain multi-level wavelet-like tree structure. The experiment results demonstrate that the proposed scheme provides better PSNR performance at high bitrate than other DCT-based rearrangement ones.
Keywords :
discrete cosine transforms; image coding; image resolution; DCT-based rearrangement; LL subband; PSNR performance; block-based DCT; high resolution image coding; input image; multilevel wavelet-like tree structure; multiresolution reordering scheme; Bit rate; Discrete cosine transforms; Discrete wavelet transforms; Image coding; PSNR; Spatial resolution; DCT; Multiresolution reordering; embedded image coding; wavelet;
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2012 2nd International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4577-1414-6
DOI :
10.1109/CECNet.2012.6201784
