Title :
A zerotree wavelet video coder
Author :
Martucci, Stephen A. ; Sodagar, Iraj ; Chiang, Tihao ; Zhang, Ya-Qin
Author_Institution :
David Sarnoff Res. Center, Princeton, NJ, USA
fDate :
2/1/1997 12:00:00 AM
Abstract :
This paper describes a hybrid motion-compensated wavelet transform coder designed for encoding video at very low bit rates. The coder and its components have been submitted to MPEG-4 to support the functionalities of compression efficiency and scalability. Novel features of this coder are the use of overlapping block motion compensation in combination with a discrete wavelet transform followed by adaptive quantization and zerotree entropy coding, plus rate control. The coder outperforms the VM of MPEG-4 for coding of I-frames and matches the performance of the VM for P-frames while providing a path to spatial scalability, object scalability, and bitstream scalability
Keywords :
adaptive codes; code standards; data compression; entropy codes; motion compensation; quantisation (signal); telecommunication standards; transform coding; video coding; wavelet transforms; I-frames coding; MPEG-4; P-frames coding; adaptive quantization; bitstream scalability; compression efficiency; discrete wavelet transform; hybrid motion compensated wavelet transform coder; object scalability; overlapping block motion compensation; rate control; spatial scalability; very low bit rate coding; video coding standard; zerotree entropy coding; zerotree wavelet video coder; Adaptive control; Bit rate; Discrete wavelet transforms; Encoding; MPEG 4 Standard; Motion compensation; Programmable control; Scalability; Video compression; Virtual manufacturing;
Journal_Title :
Circuits and Systems for Video Technology, IEEE Transactions on
