An Efficient Underwater Color Image Coding Method Based on Improved Wavelet Difference Reduction
This paper presents an efficient coding method for underwater color images, called Wavelet Tree-based Wavelet Difference Reduction (WTWDR). Instead of employing the Wavelet Difference Reduction (WDR) coding technique for the entire transformed image, the proposed WTWDR method uses the difference reduction coding technique in each significant wavelet tree. Therefore, the WTWDR method can fully employ the correlations between the subbands of higher levels and lower levels as the SPHIT method does, and can also provide the features of WDR, that is, low complexity, region of interest capability, and scalability, thereby combining the strengths of both SPIHT and WDR. In addition, according to the feature of underwater color images, we propose an efficient coding scheme for underwater color images based on WTWDR. The experimental results show that the proposed method outperforms the WDR method in terms of compression ratio and coding time, and is an alternative to the SPIHT method.
Qingzhong Li Wenjin Wang Bing Wang Xiaoling Geng
College of Engineering, Ocean University of China, Qingdao, China
国际会议
2008 International Conference on Audio，Language and Image Processing(2008国际声音、语言、图像过程大会)
镇江
英文
215-219
2008-07-07（万方平台首次上网日期，不代表论文的发表时间）