Title :
Motion palette coding for video compression
Author :
Lindner, S. ; Robinson, J.A.
Author_Institution :
Pixel Sci. Inc., Waterloo, Ont., Canada
Abstract :
Video encoding relies on the reduction of both spatial and temporal redundancies to achieve low bit rates. The total channel bandwidth is generally divided between motion and residue information. The overall bit rate can be controlled by changing the quantization setting of the residue coder, but no simple control mechanism exists for the motion coder. This paper introduces a method of encoding motion vectors, which provides a simple mechanism of controlling the motion side information bit rate. By being able to control both the motion and residue information bit rates: the coder is capable of dividing the available bandwidth between the two channels in an optimal way. This results in a more efficient coding system
Keywords :
channel capacity; data compression; image sequences; motion estimation; quantisation (signal); rate distortion theory; video coding; bit rate control; channel bandwidth; low bit rates; motion coder; motion palette coding; motion side information; motion vector encoding; quantization; rate distortion curves; residue coder; residue information; spatial redundancy reduction; temporal redundancy reduction; video compression; video encoding; videoconference type sequences; Bandwidth; Bit rate; Information rates; Motion control; Motion estimation; Noise measurement; Optimal control; Quantization; Size control; Video compression;
Conference_Titel :
Electrical and Computer Engineering, 1997. Engineering Innovation: Voyage of Discovery. IEEE 1997 Canadian Conference on
Conference_Location :
St. Johns, Nfld.
Print_ISBN :
0-7803-3716-6
DOI :
10.1109/CCECE.1997.614867