scholarly journals The analysis and design of windowed Fourier frame based multiple description source coding schemes

2000 ◽  
Vol 46 (7) ◽  
pp. 2491-2536 ◽  
Author(s):  
V. Vaishampayan ◽  
I. Daubechies ◽  
R. Balan
Keyword(s):  
Source Coding ◽  
Analysis And Design ◽  
Multiple Description ◽  
Coding Schemes ◽  
Fourier Frame

TWO-STAGE MULTIPLE DESCRIPTION IMAGE CODING USING TCQ

2009 ◽  
Vol 07 (05) ◽  
pp. 665-673 ◽  
Author(s):  
CHUNYU LIN ◽  
YAO ZHAO ◽  
CE ZHU
Keyword(s):  
Image Coding ◽  
Multiple Description Coding ◽  
Rate Performance ◽  
Two Stage ◽  
Multiple Description ◽  
Coding Schemes ◽  
Trellis Coded ◽  
Gaussian Signal ◽  
Description Coding ◽  
Distortion Rate

In this paper, we incorporate Trellis Coded Quantization (TCQ) into a two-stage multiple description coding structure to obtain granular gain over two-stage multiple description Scalar Quantizer (SQ). Analysis and experiment on Gaussian signal show that the performance of the proposed scheme can achieve larger gain than that of the two-stage SQ scheme because of better performance of TCQ. The proposed scheme for image coding is shown to be more effective than other relevant multiple description image coding schemes in terms of central-side-distortion rate performance.

Multiple description image compression based on multiwavelets

2019 ◽  
Vol 17 (01) ◽  
pp. 1850063
Author(s):  
Ning Wang ◽  
Shuangkui Ge ◽  
Baobin Li ◽  
Lizhong Peng
Keyword(s):  
Image Coding ◽  
Packet Loss ◽  
Source Coding ◽  
Statistical Correlation ◽  
Optimization Criterion ◽  
Multiple Description Coding ◽  
Transform Coding ◽  
Original Image ◽  
Multiple Description ◽  
Description Coding

Multiple description coding (MDC) is one of the source coding techniques to alleviate the problems of packet loss in the network. The decoder estimates the lost signals from received ones, based on the certain statistical correlation between descriptions. However, this correlation also leads to compression redundancy at the same time. Therefore, how to make efficient use of the introduced correlation has great importance in practical MDC approaches. In this paper, we propose a multiple description image coding scenario based on balanced multiwavelets. Two simple and effective methods to reconstruct the original image from partial descriptions are suggested. Furthermore, optimization criterion corresponding to this multiwavelet based system is provided. According to this criterion, we can choose appropriate multifilter banks to satisfy different demands. Experimental results show that the optimized multifilter banks in a simulated transform coding environment perform very well.

Sign in / Sign up

Export Citation Format

Share Document