A HYBRID VIDEO COMPRESSION BASED ON ZEROTREE WAVELET STRUCTURE

KILIÇ İ., YILMAZ R.

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

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 34
  • Basım Tarihi: 2009
  • Dergi Adı: ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
  • Sayfa Sayıları: ss.187-196
  • Anahtar Kelimeler: video compression, wavelet transform, vector quantization, SEARCH ALGORITHM, QUANTIZATION
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

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).