Title :
Entropy-constrained linear vector prediction for motion-compensated video coding
Author :
Wiegand, Thomas ; Flierl, Markus ; Girod, Bernd
Author_Institution :
Lehrstuhl fur Nachrichtentech., Erlangen-Nurnberg Univ., Germany
Abstract :
Theoretical and experimental results for motion-compensated linear prediction of video signals are presented. The rate distortion theory of motion-compensated prediction is extended to linear predictive models. For practical implementations, linear vector predictors are employed. The rate of the motion data is controlled by minimizing a Lagrangian cost function where rate is weighted against distortion using a Lagrange multiplier. An adaptive algorithm for optimally selecting the number of input signals to the linear vector predictor is given
Keywords :
entropy codes; linear predictive coding; motion compensation; rate distortion theory; video coding; Lagrange multiplier; Lagrangian cost function minimisation; adaptive algorithm; entropy-constrained linear vector prediction; linear predictive models; linear vector predictor; motion-compensated linear prediction; motion-compensated video coding; rate distortion theory; video signals; Adaptive algorithm; Cost function; Lagrangian functions; Motion analysis; Predictive models; Rate distortion theory; Signal analysis; Vectors; Video coding; Wiener filter;
Conference_Titel :
Information Theory, 1998. Proceedings. 1998 IEEE International Symposium on
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-5000-6
DOI :
10.1109/ISIT.1998.709014