2007 IEEE International Conference on Image Processing - San Antonio, Texas, U.S.A. - September 16-19, 2007

Technical Program

Paper Detail

Paper:TA-L6.2
Session:Image Coding II
Time:Tuesday, September 18, 10:10 - 10:30
Presentation: Lecture
Title: IMAGE CODING USING 2-D ANISOTROPIC DUAL-TREE DISCRETE WAVELET TRANSFORM
Authors: Jingyu Yang; Tsinghua University 
 Jizheng Xu; Microsoft Research Asia 
 Feng Wu; Microsoft Research Asia 
 Qionghai Dai; Tsinghua University 
 Yao Wang; Polytechnic University 
Abstract: We propose an image coding scheme using 2-D anisotropic dual-tree discrete wavelet transform (DDWT). First, we extend 2-D DDWT to anisotropic decomposition, and obtain more directional subbands. Second, an iterative projection-based noise shaping algorithm is employed to further sparsify anisotropic DDWT coefficients. At last, the resulting coefficients are rearranged to preserve zero-tree relationship so that they can be efficiently coded with SPIHT. Experimental results show that our proposed scheme outperforms JPEG2000 and SPIHT at low bit rates despite the redundancy of DDWT.



©2016 Conference Management Services, Inc. -||- email: webmaster@icip2007.com -||- Last updated Friday, August 17, 2012