Title :
Three dimensional subband video coding with multiscale edge detection
Author :
Ashourian, Mohsen ; Yusof, Zulkarnain Mohd ; Salleh, Shaikh Hussain Shaikh ; Bakar, Syed Abd Rahman Abu
Author_Institution :
Fac. of Electr. Eng., Univ. Technol. Malaysia, Johor, Malaysia
Abstract :
In this paper, we introduce a video compression system based on three dimensional subband coding for very low bit-rate videoconferencing and tele-monitoring application. The video codec first performs a three-dimensional subband decomposition of a group of video frames, and then encodes the subbands with different quantization methods. DPCM coding with a deterministic dithering is used for the lowest tempo-spatial subband. For high frequency subbands a combination of multiscale edge detection methods and geometric vector quantization is proposed. Results at 64 kbps for several video sequences are comparable with traditional video coding systems
Keywords :
data compression; differential pulse code modulation; edge detection; image sequences; teleconferencing; vector quantisation; video coding; 3D subband coding; DPCM coding; deterministic dithering; geometric vector quantization; high frequency subband; lowest tempo-spatial subband; multiscale edge detection; quantization methods; tele-monitoring application; three-dimensional subband decomposition; very low bit-rate coding; video codec; video coding; video compression; video frames; video sequences; videoconferencing; Band pass filters; Image coding; Image edge detection; Object oriented modeling; Signal synthesis; Streaming media; Vector quantization; Video coding; Video compression; Video sequences;
Conference_Titel :
TENCON 2000. Proceedings
Conference_Location :
Kuala Lumpur
Print_ISBN :
0-7803-6355-8
DOI :
10.1109/TENCON.2000.888777
