A HYBRID VIDEO COMPRESSION BASED ON ZEROTREE WAVELET STRUCTURE

KILIÇ İ., YILMAZ R.

ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING, vol.34, pp.187-196, 2009 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 34
  • Publication Date: 2009
  • Journal Name: ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED)
  • Page Numbers: pp.187-196
  • Keywords: video compression, wavelet transform, vector quantization, SEARCH ALGORITHM, QUANTIZATION
  • Dokuz Eylül University Affiliated: Yes

Abstract

A video compression algorithm comparable to the standart techniques at low bit rates is presented in this paper. The overlapping block motion compensation (OBMC) is combined with discrete wavelet transform which followed by Lloyd-Max quantization and zerotree wavelet (ZTW) structure. The novel feature of this coding scheme is the combination of hierarchical finite state vector quantization (HFSVQ) with the ZTW to encode the quantized wavelet coefficients. It is seen that the proposed video encoder (ZTW-HFSVQ) performs better than the MPEG-4 and Zerotree Entropy Coding (ZTE).