VQ indexes compression and information hiding using hybrid lossless index coding
Digital Signal Processing
A novel VQ-based reversible data hiding scheme by using hybrid encoding strategies
Journal of Systems and Software
Hi-index | 0.43 |
This paper presents a lossless index-coding algorithm for image vector quantization. Using the concept of dynamic tree coding, the method can encode the output index map of a memoryless vector quantizer efficiently without introducing any extra coding distortion. Experiment results show that it achieves better compression efficiency than other lossless index coding schemes. The computational complexity of the method is quite low and its memory requirement is small. Hence, it can be easily implemented by hardware and applied to many real-time applications.