Scalable wavelet video coding with controlable delay

Project Details

Description

Current standard technologies for video compression based on the discrete cosine transformation (MPEG 1-2-4, H.26-x) miss a natural support for simple bit-rate control and resolution and quality scalability. Several wavelet-based coding approaches have been to tackle this shortcoming. In-Band Motion Compensated Temporal Filtering (IBMCTF) appears to be the only wavelet-based technology that couples state-of-the-art performance with full scalability. This technology applies motion compensated temporal filtering in the wavelet domain while using an overcomplete wavelet transform.
An important drawback of this solution is its high arithmetic and memory complexity. Together with the specific architecture of this codec this has a consequence that the realisation of qualitative low-delay operating mode, typically requested by an application like video conferencing, introduces additional problems. The goal of this research project is to realise a parametrisable algorithmic architecture specification for the IBMCTF codec that supports quality, resolution and temporal scalability as well as complexity scalability.
AcronymIWT224
StatusFinished
Effective start/end date1/01/0431/12/07

Keywords

  • arithmetic and memory complexity
  • low delay
  • Scalable wavelet video coding
  • MPEG-21
  • MPEG-4

Flemish discipline codes

  • Electrical and electronic engineering
  • Mathematical sciences