|
|
|
| A Feasibility Strategy of Truncation Points for Rate Distortion Optimality |
| Zhou Ying-hong①②; Ma Zheng-ming① |
| ①Department of Electronic & Communication Engineering, Sun Yat-sen University, Guangzhou 510275, China;②Information Engineering College, Guangdong University of Technology, Guangzhou 510006, China |
|
|
|
|
Abstract A feasibility strategy of truncation points for rate distortion optimality is presented. The new algorithm reorders the positions of truncation points associated with refinement passes according to the steepest rate-distortion slope. The proposed scheme reduces the unfeasible truncation points to 50% compared with JPEG2000; gives a finely embedded bitstream, achieves an improvement of PSNR over JPEG2000 0.1dB~0.2dB, and attains a speed-up of the bit-plane encode time compared with JPEG2000.
|
|
Received: 10 October 2007
|
|
|
|
|
|
|
|
|
2009, Vol. 31 
