Image compression using an overcomplete discrete wavelet transform
- Resource Type
- Authors
- G. Nicula; R. Zaciu; C. Lamba; C. Burlacu
- Source
- IEEE Transactions on Consumer Electronics. 42:800-807
- Subject
- Discrete wavelet transform
Lifting scheme
business.industry
Stationary wavelet transform
Second-generation wavelet transform
ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION
Wavelet transform
Wavelet packet decomposition
Wavelet
Media Technology
Computer vision
Artificial intelligence
Electrical and Electronic Engineering
Harmonic wavelet transform
business
Algorithm
Mathematics
- Language
- ISSN
- 0098-3063
This paper investigates the application of a new concept called the "overcomplete discrete wavelet transform" (ODWT) for image sequences compression. It has been demonstrated that: "The translated function with any integer multiple of the sampling period is completely represented in the wavelet space by one of the ODWT members". This theoretical result leads to a new motion estimation and compensation scheme working in the transform domain. Our simulation experiments, performed on real image sequences, show high quality and low bit rate performances. By performing the motion estimation in the wavelet space, a quite modest computational complexity is ensured.