When is an optimal transform coder orthonormal?

Xuejie Song; S Dasgupta

doi:10.1109/ISCIT.2007.4392093

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Conference proceeding

When is an optimal transform coder orthonormal?

Xuejie Song and S Dasgupta

2007 International Symposium on Communications and Information Technologies, pp.624-627

10/2007

DOI: 10.1109/ISCIT.2007.4392093

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Abstract

We consider optimum Transform coding. The objective is to minimize the distortion variance by selecting an optimum transform matrix and bit allocation among the sub-band signals. Under an asymptotic expression for the quantizer distortion function it is known that the optimum transform can be chosen to be orthonormal and regardless of the precise allocated bit values. In this paper we have given sufficient conditions on the quantizer distortion function that ensure this property.

Audio coding

Bit rate

Cities and towns

Distortion

Image coding

Image storage

Matrix decomposition

Speech coding

Sufficient conditions

Transform coding

Details

Title: Subtitle: When is an optimal transform coder orthonormal?
Creators: Xuejie Song - University of Iowa
S Dasgupta - University of Iowa
Resource Type: Conference proceeding
Publication Details: 2007 International Symposium on Communications and Information Technologies, pp.624-627
DOI: 10.1109/ISCIT.2007.4392093
Publisher: IEEE
Language: English
Date published: 10/2007
Academic Unit: Electrical and Computer Engineering
Record Identifier: 9984197531002771

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