Title :
Very low bit rate wavelet-based scalable video compression
Author :
Asbun, Eduardo ; Salama, Paul ; Shen, Ke ; Delp, Edward J.
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
Rate scalable video compression is appealing for low bit rate applications, such as video telephony and wireless communication, where bandwidth available to an application cannot be guaranteed. A technique known as scalable adaptive motion compensated wavelet (SAMCoW) compression is described. SAMCoW is well suited for data rates less than 32 kbps. Several techniques to improve the subjective picture quality of SAMCoW are investigated. These include the use of B frames, half-pixel accuracy, and unrestricted motion vectors
Keywords :
adaptive signal processing; data compression; image sequences; motion compensation; radiocommunication; transform coding; video coding; videotelephony; wavelet transforms; 32 kbit/s; B frames; bandwidth; data rates; half-pixel accuracy; image sequences; scalable adaptive motion compensated wavelet; subjective picture quality; unrestricted motion vectors; very low bit rate; video telephony; wavelet-based scalable video compression; wireless communication; Bandwidth; Bit rate; Decoding; Image coding; Image quality; Motion compensation; Scalability; Telephony; Video compression; Wireless communication;
Conference_Titel :
Image Processing, 1998. ICIP 98. Proceedings. 1998 International Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
0-8186-8821-1
DOI :
10.1109/ICIP.1998.727407
