| Paper: | MP-P4.7 |
| Session: | Image Coding I |
| Time: | Monday, September 17, 14:30 - 17:10 |
| Presentation: |
Poster
|
| Title: |
A HIGH PERFORMANCE LOSSLESS BAYER IMAGE COMPRESSION SCHEME |
| Authors: |
King Hong Chung; The Hong Kong Polytechnic University | | |
| | Yuk Hee Chan; The Hong Kong Polytechnic University | | |
| | Chang Hong Fu; The Hong Kong Polytechnic University | | |
| | Yui Lam Chan; The Hong Kong Polytechnic University | | |
| Abstract: |
Demosaicing and compression are generally performed sequentially in most digital cameras. Recent reports show that the compression-first scheme outperforms the conventional demosaicing-first scheme in terms of image quality and complexity. In this paper, an efficient lossless compression scheme for Bayer images is presented. It exploits a context matching technique to rank the neighboring pixels for predicting a pixel. Besides, an adaptive color difference estimation scheme is also proposed to remove the spectral redundancy. Simulation results show that the proposed algorithm can achieve a better compression performance as compared with the existing lossless CFA image coding methods. |
