Title :
A rate control method for H.263 temporal scalability
Author :
Ishtiaq, Faisal ; Katsaggelos, Aggelos K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Northwestern Univ., Evanston, IL, USA
Abstract :
In this paper a novel methodology for temporal scalability within the H.263 video coding standard is presented. Temporal scalability is defined as the transmission of previously dropped frames in the form of a scalable enhancement layer to increase the overall encoded frame rate. The proposed methodology extends the base layer rate control to the enhancement layer and incorporates an adaptive technique for enhancement layer frame selection. Three criteria important in the selection of enhancement frames are identified, allowing us to adaptively choose frames such that the overall temporal resolution of the encoded video sequence is enhanced. Experimental results are provided and compared to a non-adaptive technique where enhancement frames are selected solely on the decay of the enhancement layer buffer
Keywords :
image sequences; standards; temporal logic; video coding; H.263 temporal scalability; base layer rate control; encoded video sequence; enhancement frames; enhancement layer buffer; enhancement layer frame selection; rate control method; scalable enhancement layer; temporal scalability; video coding standard; Adaptive control; Bit rate; Communication standards; Encoding; MPEG 4 Standard; Programmable control; Scalability; Spatial resolution; Video coding; Video sequences;
Conference_Titel :
Image Processing, 1999. ICIP 99. Proceedings. 1999 International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-7803-5467-2
DOI :
10.1109/ICIP.1999.819595
