4 August 2010 Pattern-based assembled DCT scheme for image coding
Author Affiliations +
Proceedings Volume 7744, Visual Communications and Image Processing 2010; 77441E (2010) https://doi.org/10.1117/12.863868
Event: Visual Communications and Image Processing 2010, 2010, Huangshan, China
Abstract
A Pattern-based Assembled DCT (PADCT) scheme is proposed as a general framework to fully utilize texture structure property in images in a more feasible and flexible manner. Different patterns can be designed or extracted according to texture structures such as directionality and distribution patterns. Pixels in the block are divided into sub-partitions, followed by assembling pixels in each sub-partitions together into a compact and efficient form for the succeeding separated one dimensional transform operations, suitable DC prediction and entropy coding schemes are also introduced. PADCT has the advantages of advanced compact energy concentration, efficient usage of memory, fewer categories of one dimensional transform, and adaptability for hardware optimization. Experimental results show that the bitrate reduction over the 2-D DCT is up to 35%. It also outperforms significantly than previous typical directional transform schemes in comparison with PSNR or subjective quality.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Zhibo Chen, Zhibo Chen, Xiaozhong Xu, Xiaozhong Xu, } "Pattern-based assembled DCT scheme for image coding", Proc. SPIE 7744, Visual Communications and Image Processing 2010, 77441E (4 August 2010); doi: 10.1117/12.863868; https://doi.org/10.1117/12.863868
PROCEEDINGS
7 PAGES


SHARE
RELATED CONTENT

Image compression algorithm using local edge information
Proceedings of SPIE (January 10 1997)
Symmetrical segmentation-based image coding
Proceedings of SPIE (October 22 1993)
Region-based DCT image coding scheme
Proceedings of SPIE (June 03 1997)
Authentication techniques for multimedia content
Proceedings of SPIE (January 22 1999)

Back to Top