Transform domain overlapped block disparity compensation in wavelet coding of stereo image pairs

Author

Nayan, M.Y. ; Edirisinghe, E.A. ; Bez, H.E.

Author_Institution

Dept. of Comput. Sci., Loughborough Univ., UK

Volume

1

fYear

2003

fDate

15-18 Dec. 2003

Firstpage

208

Abstract

In this paper we propose a stereo image CODEC, that uses overlapped block disparity estimation/compensation in multiresolution wavelet transform domain. Overlapped block matching is known to be able to reduce blocking artifacts by linearly combining multiple blocks provided by the disparity vectors of a block and its neighbours. This capability of OBM and discrete wavelet transform´s (DWT) versatile time-frequency localization is expected to improve rate distortion performance. With the proposed CODEC gains of up to 1 dB at low bit rates as compared to the benchmark of S. Sethuraman et al. (1994) used in the paper.

Keywords

discrete wavelet transforms; image coding; image resolution; stereo image processing; transform coding; 1 dB; CODEC gains; discrete wavelet transform; multiresolution wavelet transform domain; overlapped block disparity compensation; stereo image pairs; time-frequency localization; wavelet coding; Codecs; Computer displays; Discrete cosine transforms; Discrete wavelet transforms; Humans; Image coding; Image resolution; Rate-distortion; Wavelet domain; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communications and Signal Processing, 2003 and Fourth Pacific Rim Conference on Multimedia. Proceedings of the 2003 Joint Conference of the Fourth International Conference on

Print_ISBN

0-7803-8185-8

Type

conf

DOI

10.1109/ICICS.2003.1292444

Filename

1292444