Title :
Property vector based distortion estimation
Author :
Nordén, Fredrik ; Andersen, SØren V. ; Jensen, SØren H. ; Kleijn, W. Bastiaan
Author_Institution :
Dept. of Commun. Technol., Aalborg Univ., Denmark
Abstract :
This paper addresses rate-distortion optimal mode selection, based on estimates of the instantaneous coding distortion, for multi-mode source coders. We propose a two stage estimation framework, including a property extraction, and a Gaussian mixture model based distortion estimation. We also suggest accompanying measures for evaluating the goodness of a given property vector. The proposed framework is evaluated for a set of properties in a CELP coding framework. The results suggest that the proposed framework is capable of doing rate distortion optimal mode selection in multi-mode source coders.
Keywords :
Gaussian processes; linear codes; linear predictive coding; rate distortion theory; source coding; vectors; Gaussian mixture model; code-excited linear prediction coding framework; coding distortion estimation; multimode source coders; property extraction; property vector; rate-distortion optimal mode selection; Communications technology; Detectors; Distortion measurement; Particle measurements; Q measurement; Rate-distortion; Sensor systems; Speech coding; Switches; Visualization;
Conference_Titel :
Signals, Systems and Computers, 2004. Conference Record of the Thirty-Eighth Asilomar Conference on
Print_ISBN :
0-7803-8622-1
DOI :
10.1109/ACSSC.2004.1399573