DocumentCode :
2929277
Title :
Novel VQ with constraints on the quantization error distribution
Author :
Schenk, Joachim ; Wallhoff, Frank ; Rigoll, Gerhard
Author_Institution :
Dept. of Electr. Engeneering & Inf. Technol., Tech. Univ. Munchen, Munich, Germany
fYear :
2009
fDate :
June 28 2009-July 3 2009
Firstpage :
169
Lastpage :
172
Abstract :
In this paper, we motivate and introduce a novel vector quantization (VQ) scheme for distributing the quantization error among the quantized features of a continuous feature vector in a predefined manner. This is done by defining ratios between the individual quantization errors of the features and shaping the Voronoi cells accordingly. In a series of experiments we show that the novel approach is capable of either distributing the quantization error equally among the dimensions or realize an arbitrary distribution.
Keywords :
vector quantisation; Voronoi cell shaping; quantization error distribution; vector quantization scheme; Data compression; Feature extraction; Handwriting recognition; Hidden Markov models; Information technology; Man machine systems; Pattern recognition; Signal mapping; Signal processing; Vector quantization; Voronoi cells; error shaping; quantization error; vector quantization;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Multimedia and Expo, 2009. ICME 2009. IEEE International Conference on
Conference_Location :
New York, NY
ISSN :
1945-7871
Print_ISBN :
978-1-4244-4290-4
Electronic_ISBN :
1945-7871
Type :
conf
DOI :
10.1109/ICME.2009.5202463
Filename :
5202463
Link To Document :
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